• French students returning from the summer break will no longer be able to use their phones during the school day.
• Earlier this summer France banned all students under 15 from using all cellphones, tablets, and smartwatches at any point during the day.
• That includes mealtimes.
• The government is concerned that students are becoming too dependent on and distracted by their phones.

Monday is the first day that French schoolchildren under 15 cannot use their cellphones at any point during the school day, thanks to a new nationwide law.

The ban, passed in July following a campaign pledge made by French President Emmanuel Macron, will affect elementary and junior high schools across the country as they return from the summer break.

The new law, which went into effect on August 5, bans all types of cellphones, as well as tablets and smartwatches.

While a ban on cellphones during class hours was already in place since 2010, the new law extends to breaks and mealtimes.

Schools are free to choose themselves if they will implement the ban for students over 15. There are also some exceptions to the ban, such as for students with disabilities.

"A law for the 21st century"

Under the new law, students have to turn their phones off during the day or put them in lockers, the Associated Press reported. Schools will independently deal with the logistics of how students will be kept away from their phones, the news agency said.

The law was introduced amid fears that students were becoming too dependent on and distracted by their smartphones.

Education Minister Jean-Michel Blanquer in June hailed the legislation as "a law for the 21st century," and said it would improve discipline among France's 12 million schoolchildren, Agence France-Presse reported.

"Being open to technologies of the future doesn't mean we have to accept all their uses," he said.

SEE ALSO: What the first day of school looks like in 12 countries around the world

Join the conversation about this story »

NOW WATCH: NYU professor says Facebook should pay taxes for making us less productive

• Power couples make for a dream team that's easy to envy.
• Many of the most well-known power couples earn high salaries for a massive combined net worth— but which half is worth more?
• Jay Z is worth more than Beyoncé, but Kim Kardashian West is the breadwinner in her marriage with Kanye West.

There's just something about power couples. When two highly successful individuals get together, you've got a relationship that epitomizes a dream team, and that's easy to admire.

After all, it's hard work maintaining your own career and life on top of a powerful marriage. 

Apart from success, one thing that power couples often have in common? Money. At least, for the most iconic power couples.

But which half of each power duo has a higher net worth? Jay Z is worth more than Beyoncé, but Kim Kardashian West is the breadwinner in her marriage with Kanye. And some — like David and Victoria Beckham — are on completely even footing when it comes to wealth. 

Below, take a look at some of the richest, most well-known power couples — from celebrities to business moguls — and see who has a higher net worth.

SEE ALSO: Beyoncé is worth $355 million — see how she spends it on lavish mansions, yachting vacations, and a private jet for Jay-Z

DON'T MISS: Jay Z is the richest hip-hop artist in the world but he'd be nothing without Beyoncé — here are the 7 richest power couples

Hillary and Bill Clinton: $125 million

Bill Clinton net worth: $80 million

Hillary Clinton net worth: $45 million

Politicians Hillary and Bill Clinton have racked up quite the fortune since Bill's tenure as president ended. As of 2016, they had earned $240 million, according to Forbes. 

They both brought in money through six-figure speaking engagements and writing books, but Bill has a higher estimated net worth of $80 million in part due to a consulting job and advising billionaire Ron Burkle. From these two gigs, he made a collective $39 million, reports Forbes. 

Sarah Jessica Parker and Matthew Broderick: $145 million

Sarah Jessica Parker net worth: $100 million

Matthew Broderick net worth: $45 million

Hollywood power couple Sarah Jessica Parker and Matthew Broderick have raked in most of their money from the television and movie industries. Parker has also made money off of her perfumes and endorsement with Garnier, and Broderick has brought in cash from his work on Broadway. 

Kelly Ripa and Mark Consuelos: $160 million

Kelly Ripa net worth: $120 million

Mark Consuelos net worth: $40 million

Kelly Ripa and Mark Consuelos met on the set of soap opera "All My Children." In addition to acting, Ripa has credits as a television producer and a TV host. In 2016, she earned $17 million as a solo host on morning show Live!, according to Forbes. She's also been a spokeswoman for various companies, such as Tide and Pantene.

Since acting on "All My Children," Consuelos has guest starred or had recurring roles on many television shows.

• President Donald Trump is reportedly set to impose tariffs on another $200 billion worth of Chinese goods.
• The move would be an escalation of the US-China trade war and another step toward Trump's threat to impose tariffs on all Chinese goods entering the US.
• Tennessee is most at risk from a full-blown trade war, followed by Washington, California, South Carolina, and Kentucky.
• Check out the impact from a full blown US-China trade war on every state below.

President Donald Trump's trade war with China could be about to go to the next level, and some states should be more worried than others.

Trump is reportedly pushing advisers to impose tariffs on another $200 billion worth of Chinese goods as early as next week. The move would be a major escalation of the US-China trade war and result in roughly half of all Chinese imports to the US being subject to tariffs.

Beijing has threatened to impose tariffs on $60 billion worth of US goods in response, and the moves could be a step to Trump's ultimate threat: tariffs on all goods coming in from China.

Economists say a full-blown trade war, with tariffs on all goods between the two countries, would result in substantial price increases for US businesses and consumers. Such a huge trade war would also drag on US economic growth.

But the pain from the trade fight would not fall equally across the US.

To determine the biggest losers from an all-out trade war with China, we looked at the percent of each state's GDP that was attributable to trade with China.

The biggest loser from a full-blown trade war with China would be Tennessee, as trade with China accounts for 7.6% of the state's total GDP. Following closely behind are four other states where 5% or more of their state GDP comes from Chinese trade:

• Washington (6.43%)
• California (6.39%)
• South Carolina (5.87%)
• Kentucky (5.39%)

The move also poses a political risk to Trump, since he won 17 of the 24 states where more than 2% of state GDP comes from trade with China. And in high-risk states like California and Washington, many House Republican incumbents are facing hard challenges from Democrats. 

SEE ALSO: Trump reportedly wants to hit China with tariffs on $200 billion worth of goods, which would be a massive escalation of the trade war

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NOW WATCH: A North Korean defector's harrowing story of escape

• Many people across the US are about to receive some extra time off thanks to Labor Day.
• Business Insider spoke with several productivity and work experts to get tips on how to bounce back from a long weekend.
• They recommended hitting the ground running on your first day back.

An extra day off makes snapping out of weekend mode that much harder. But it's an eventuality you should be prepared for. After all, some people around the US will be receiving an extra day off for Labor Day.

There's a lot to be said about how you should— or shouldn't— spend long weekends. But it's equally important to plan out the days that follow a long weekend.

When you're coming back from some time off and you have a shorter week to get everything done, it usually helps to hit the ground running.

With that in mind, here are six things that successful people do first when they return from long weekend:

DON'T MISS: 11 things unsuccessful people do over long weekends

SEE ALSO: 8 things successful people do after getting back from vacation

They get to work early

When it comes to some holidays, almost everyone has time off. So you won't be falling behind by showing up to work at your usual time.

But coming in early is a good idea if you want to be as productive as possible after a holiday weekend.

"That will mitigate the workload avalanche and give you a head start, sans distraction," Lynn Taylor, a national workplace expert and the author of "Tame Your Terrible Office Tyrant: How to Manage Childish Boss Behavior and Thrive in Your Job," told Business Insider.

They scrutinize their to-do lists

Productive people know that long, unwieldy to-do lists are essentially useless. There's no better time to start cutting items from your list than the day you get back from long weekend.

"Now that you've spent a good bit away from your desk, you have tangible proof that those tasks you're always putting off aren't holding up your ceiling," freelance reporter Kevin Purdy writes in Fast Company.

They double-check their schedules

Don't forget to double-check your schedule. Remember, you'll likely be dealing with a shortened work week. Don't try to cram too many items onto your weekly schedule, or you might wind up burning yourself out.

• Several investigations taking place in New York are quickly becoming what experts describe as the biggest threat to President Donald Trump.
• The US attorney for the Southern District of New York, the New York attorney general, and the Manhattan District Attorney's Office are all either investigating Trump, his businesses, or his business associates, or are contemplating such investigations.
• So far, local, state, and federal officials in New York are looking into hush payments that Michael Cohen, Trump's former longtime lawyer, made on Trump's behalf; how the Trump Organization was involved in those payments; the operations of the Donald J. Trump Foundation; and whether Trump's business practices in New York violate the Constitution's emoluments clause. 

It's quickly becoming clear to experts that the multiple investigations going on in New York are the greatest threat to President Donald Trump.

Late last month, in a courtroom in lower Manhattan, Trump's former longtime lawyer, Michael Cohen, cut a deal with federal prosecutors and pleaded guilty to five counts of tax evasion, one count of making a false statement to a financial institution, and two counts related to campaign-finance violations.

The latter two charges were in connection to payments to the former Playboy model Karen McDougal and the adult-film actor Stormy Daniels to silence their allegations of affairs with Trump. And Cohen said under oath that Trump directed him to make the payments in order to boost his candidacy, making the president what experts called an "unindicted co-conspirator."

Soon after Cohen pleaded guilty, reports emerged that the Trump Organization CFO Allen Weisselberg and the National Enquirer boss David Pecker — two men with intimate knowledge of the hush payments — were given immunity by federal prosecutors investigating Cohen.

It's not clear exactly how much the immunity deals cover, or what prosecutors in the Southern District of New York plan to do regarding the payments moving forward. News reports suggested that the information Weisselberg provided was limited to the Cohen investigation and not connected to broader scrutiny of the president's or his business' finances.

But other New York investigative bodies are taking aim at the president and his business — or considering doing so.

A quagmire of investigations into Trump's businesses and associates

After federal prosecutors laid out how the Trump Organization reimbursed Cohen for his hush-money efforts, The New York Times reported that the Manhattan District Attorney's Office was weighing possible criminal charges against the Trump Organization and two unnamed senior officials.

The US Attorney's Office for the Southern District of New York listed those two unnamed Trump Organization executives in an information it filed in the Cohen case, accusing them of improperly accounting the hush-money reimbursements.

Then it was reported that Cohen was subpoenaed in a separate investigation, the New York state probe into the Donald J. Trump Foundation.

In June, acting New York Attorney General Barbara Underwood filed a lawsuit against Trump, his adult children, and the foundation following an investigation that began in 2016.

Underwood is accusing the foundation of engaging in illegal political coordination with Trump's campaign, making multiple self-dealing transactions to benefit Trump and his business interests, and violating legal obligations for such nonprofits in New York. She also sent referral letters to the IRS and the Federal Election Commission identifying possible violations of federal law for the agencies to investigate.

Trump and his business said the lawsuit was the result of political bias, and his attorney last week sought to have it thrown out on those grounds.

Soon after Underwood filed the civil suit, New York's Democratic governor, Andrew Cuomo, escalated the state's legal battle regarding Trump and his charity by opening the door to a potential criminal case against the nonprofit.

"At Gov. Cuomo's direction, the state stands ready to provide the [New York] Attorney General with the appropriate criminal referral on this matter if and when she asks for it," Alphonso David, the governor's counsel, said in a statement.

That statement was related to the New York State Department of Taxation and Finance's opening an investigation into the charity. If Cuomo feels that what turns up as a part of that probe is worthy of a criminal referral, he'll provide one to Underwood, who would need that to file a criminal lawsuit.

Trump's state tax returns could be made public as a result of that process.

On top of all that, Underwood is additionally investigating whether Trump's business practices in New York violate the emoluments clause, an arcane portion of the Constitution that prohibits public officials from receiving gifts or payments — known as emoluments — from foreign or state governments without congressional approval.

And Underwood's office is in touch with other law-enforcement agencies about Cohen's plea deal.

Amy Spitalnick, a spokeswoman for the attorney general, said that the office "has repeatedly and successfully acted to hold Donald Trump accountable for unlawful and unconstitutional actions, and we will continue to do so," pointing to the investigation into possible violations of the emoluments clause.

Of the Trump Foundation lawsuit, Spitalnick said: "We will hold Donald Trump and his associates accountable for violations of state law, and will seek a criminal referral from the appropriate state agency as necessary."

Combating Trump and his administration has been at or near the top of the agenda for both Underwood and her predecessor, Eric Schneiderman, who for years had a contentious relationship with Trump. Schneiderman resigned from office earlier this year after he was accused of abusing women.

'The New York state and local investigations add fuel to that fire'

Alan Dershowitz, a professor emeritus at Harvard Law School and an informal Trump adviser who often provides legal analysis defending the president, told Business Insider in an email that he's "said for months" that New York provides the greatest danger to Trump.

During a recent appearance on ABC's "This Week," Dershowitz said he believes Trump "has constitutional defenses to the investigation being conducted by" Robert Mueller, the special counsel investigating Russian interference in the 2016 US presidential election and whether the Trump campaign was involved.

"But there are no constitutional defenses to what the Southern District is investigating," Dershowitz added. "So I think the Southern District is the greatest threat."

Mitchell Epner, an attorney at Rottenberg Lipman Rich who was formerly a federal prosecutor in the District of New Jersey, told Business Insider in an email that he believes "the various New York investigations, particularly the SDNY investigation in the aftermath of the Michael Cohen guilty plea, pose the greatest threat to President Trump."

"The New York state and local investigations add fuel to that fire," he said.

Roland Riopelle, a partner at Sercarz & Riopelle and a former federal prosecutor in the Southern District of New York, seconded that.

"Yes, at this point — and particularly with the immunity agreement with Weisselberg — New York is the biggest threat to Trump," he said.

SEE ALSO: Trump's attorney filed a motion to dismiss the New York lawsuit against his charity, but the attorney general says they're not backing down

DON'T MISS: The Trump Organization could be opened up to further legal exposure after prosecutors highlighted the actions of 2 employees in the Michael Cohen saga

Join the conversation about this story »

NOW WATCH: Meet the woman behind Trump's $20 million merch empire

• Colin Kaepernick shared an image from what appears to be a new "Just Do It" ad campaign from Nike on Monday.
• The former NFL quarterback is notorious for kneeling during the national anthem in 2016 to protest racial inequality, sparking similar demonstrations across the league and around the country.
• He's in the middle of a lawsuit against the NFL, accusing owners of keeping him out of the league.
• Nike has represented Kaepernick since 2011, but hasn't featured him in ads for two years, according to ESPN.

It looks like former NFL quarterback Colin Kaepernick is starring in a new ad campaign for Nike.

He shared an image on his Twitter Monday of a close-up of his face with the words: "Believe in something. Even if it means sacrificing everything." Nike's Twitter account later retweeted his post.

Nike has represented Kaepernick since 2011, but hasn't featured him in ads for two years, according to ESPN.

A person familiar with the deal told the Associated Press that Kaepernick negotiated a new multi-year deal with Nike now that he's out of the NFL, which will feature him in billboards, television commercials, and a new apparel line. Some proceeds will reportedly go to his Know Your Rights education camp.

This could mean that Nike is wading further into the political fray surrounding Kaepernick, who first knelt during the national anthem in 2016 to protest racial inequality and police brutality. He is now embroiled in a lawsuit against the NFL, accusing owners of colluding to keep him out of the league.

In the 2017 season, anthem protests swept the NFL, and President Donald Trump condemned them. He has continued to express his derision of the practice since then.

Speaking at a rally in September 2017, Trump told the crowd: "Wouldn't you love to see one of these NFL owners, when somebody disrespects our flag, to say, 'Get that son of a b---- off the field right now, out — he's fired!'"

Players, teams, and even commissioner Roger Goodell defended players' right to kneel, but the issue has simmered since then, and all eyes are on how teams will handle anthem protests this season.

"Nike supports athletes and their right to freedom of expression on issues that are of great importance to our society," the company said in a statement at the time.

The brand isn't afraid of making a splash. When the French Open banned Serena Williams' black catsuit in August, the company released an image defending the athlete it supports that said, "You can take the superhero out of her costume, but you can never take away her superpowers."

The original "Just Do It" ad campaign premiered in 1988, when Nike featured 80-year-old Walt Stack jogging across the Golden Gate Bridge. Kaepernick's spot is in celebration of the ad's 30th anniversary, ESPN reported.

"We believe Colin is one of the most inspirational athletes of this generation, who has leveraged the power of sport to help move the world forward," Nike's vice president of brand for North America Gino Fisanotti told ESPN.

Nike did not immediately respond to Business Insider's request for comment on the new ad.

SEE ALSO: Nike had the perfect response to French Open's controversial decision to ban Serena Williams' catsuit that made her feel like a 'warrior princess'

DON'T MISS: Trump's wrath and tweets — and how NFL owners may fear them — are now at the center of Colin Kaepernick's case against the league

Join the conversation about this story »

NOW WATCH: How Moe's makes their spiciest salsa with ghost peppers

• New York City contains dozens of neighborhoods across its five boroughs: Brooklyn, Manhattan, Staten Island, Queens, and the Bronx.
• Residents of those neighborhoods speak an abundance of languages.
• Using census data from the Minnesota Population Center, we found the three most commonly spoken languages in each neighborhood.

New York is a city of neighborhoods, and those neighborhoods have a diverse array of people from all over the world.

The Census Bureau's American Community Survey provides a picture of several demographic, economic, and social characteristics of the US population. One of the questions on the survey asks respondents which language they mainly speak at home. Using data from the Minnesota Population Center's 2011-2015 ACS Integrated Public Use Microdata Series, we found the top three languages spoken in each New York neighborhood.

For our working definition of neighborhood, we used the Census Bureau's Public Use Microdata Areas, which are designed to allow small-scale geographic analyses of individual-level ACS data. In New York, these areas mostly correspond to the city's community districts (or groups of two for areas with smaller populations), so they're a pretty good proxy for neighborhoods.

Here are the three most common languages spoken at home in each New York City neighborhood.

SEE ALSO: The most and least expensive places to live in America

Manhattan CD 1 & 2: Battery Park City, Greenwich Village & Soho

Most commonly spoken language at home: English

Second most common language: Spanish

Third most common language: Chinese

Manhattan CD 3: Chinatown & Lower East Side

Most commonly spoken language at home: English

Second most common language: Spanish

Third most common language: Chinese

Manhattan CD 4 & 5: Chelsea, Clinton & Midtown Business District

Most commonly spoken language at home: English

Second most common language: Spanish

Third most common language: Chinese

• Duolingo CEO Luis von Ahn has a strategy for encouraging underperforming employees.
• He told the Financial Times that he tells them: "What you're doing is really important."
• The technique ties back to the idea that people need to feel as if their work has meaning. 

Duolingo CEO Luis von Ahn knows exactly what to do with lazy employees.

The founder of the language-learning app, which has been valued at $700 million, recently discussed his strategy for dealing with unengaged employees in an interview with the Financial Times.

"You can turn somebody from being a lazy person to being the most committed person if they honestly believe that the company and you, as a leader, think what they're doing is important," von Ahn told the Financial Times. "It's amazing how motivating it is to sit with somebody and say, 'What you're doing is really important.' I use that a lot."

His technique is backed up by the results of a 2016 survey from LinkedIn and Imperative involving 26,151 global LinkedIn members that aimed to find out how many people "optimize their job to align with work that matters to them." It found that 73% of "purpose-oriented professionals" said they were satisfied with their jobs, as opposed to 64% of non-purpose-oriented employees.

And von Ahn has indicated that he's on the lookout for purpose-driven people. He told the Financial Times that he doesn't believe that waving around massive paychecks will attract top candidates to Duolingo.

"If it requires you paying them off to come work for you, I don't think they're going to be in it," he said. "We prefer missionaries to mercenaries."

The job site Glassdoor's list of average base salaries at Duolingo provides a glimpse into pay at the company, saying that senior software engineers could earn $110,396, lead designers could make $97,793, and product managers could bring home anywhere from $83,000 to $115,000 a year.

Von Ahn previously told Business Insider that his team vetted talent by conducting extensive reference checks, ensuring that prospective employees aren't arrogant jerks, and refusing to hire any doubt-provoking candidates.

SEE ALSO: The CEO of language app Duolingo says too many people make the same mistake trying to learn a new language

DON'T MISS: A CEO says he always does the same thing before offering anyone a job

SEE ALSO: A CEO who sold 2 companies to Google gives his best advice on taking career risks

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NOW WATCH: A psychologist reveals a trick to stop being lazy

San Francisco can be a tough place live for a lot of reasons. Sky-high housing prices can make it nearly impossible to find a place. In February, a 1,000-square-foot home with no working plumbing and a pile of rotting mattresses stacked in the kitchen sold for more than $520,000.

Even tech moguls and startup founders are having trouble finding homes in an area where nearly every spare piece of real estate is gobbled up by the highest bidder. One firm estimated that a home buyer needs to make about $300,000 a year just to afford a median-priced abode.

But San Francisco isn't just perilously overpriced: It's also perpetually teetering on the edge of disaster. On April 18, 1906, a violent ~7.7-7.9 magnitude earthquake leveled the city into ruins. The minute-long quake ruptured 296 miles of California coastline, sparked three days of fires, and killed 3,000 people, leaving the bulk of the city homeless.

That was just 112 years ago — the geologic equivalent of the blink of an eye. 

If earthquakes don't shake you, consider that the city is literally sinking into mud — and into trash in certain places.

Real-estate woes aside, here are the ways that scientists know living in the Bay Area is not for the faint of heart:

SEE ALSO: 11 potentially cancer-causing things you might use every day

The Bay Area is a veritable smorgasbord of complex fault lines. No less than seven different faults converge here.

The well-known San Andreas Fault is just one of the seven "significant fault zones" the US Geological Survey (USGS) cites in the Bay Area. The others are the Calaveras, Concord-Green Valley, Greenville, Hayward, Rodgers Creek, and San Gregorio Faults.

People who live in the area experience small earthquakes and shakes all the time. But those aren't the rumbles that scare seismologists. 

It's the bigger, disastrous quakes scientists are really worried about. And they say San Francisco is due for another soon.

In 2007, the USGS determined that there was about a "63% probability of a magnitude 6.7 or greater earthquake in the Bay Area" by 2037.

Estimates have only gotten worse since then. One recent report suggested that there is a 76% chance the Bay Area will experience a magnitude 7.0 earthquake within the next three decades.

Seismologists are most concerned about two fault lines in particular: the San Andreas and the Hayward.

Anything higher than a 7.9 on the San Andreas Fault line, which runs from Mendocino to Mexico, would put "approximately 100%" of the population of San Francisco at risk, while a 6.9 quake from the Hayward Fault could spell trouble for nearly everyone who lives and works there, according to the city.

• Tropical Storm Gordon is dumping rain on Florida on Monday evening, and expected to gain in strength as it heads to up the Gulf Coast.
• Forecasters predict the storm could strengthen to a hurricane over the Gulf of Mexico before it makes landfall in Mississippi on Wednesday.
• The storm surge along the Gulf Coast could reach up to 5 feet, and the National Hurricane Center predicts rain totals in Florida, the Bahamas, Alabama, Mississippi, and Louisiana could range from 2 to 4 inches up to 8 inches in some areas.

Tropical Storm Gordon is centered 50 miles off the coast of Fort Myers, Florida on Monday evening, dumping rain on the peninsula and whipping its shores with maximum winds up to 50 mph.

Heading northwest at 17 mph, the National Hurricane Center predicts Gordon could strengthen to a hurricane over the Gulf of Mexico before it likely makes landfall in Mississippi early Wednesday.

Until then, the tropical storm could cause dangerous storm surge, strong winds, and flash flooding along the Gulf Coast from the tip of Florida to eastern Texas.

Forecasters are expecting 2 to 4 inches of rain over the Bahamas, Florida Keys, and South Florida through early Tuesday, with some areas seeing up to 8 inches.

In southern Alabama, southern Mississippi, and Louisiana, rain totals are predicted at 4 to 6 inches through Thursday, with up to 8 inches in some areas.

"It looks like for the next three or four days we're going to be having to really watch close," National Hurricane Center Director Ken Graham said in a video briefing on Facebook, according to Reuters. "And remember, if you're even inland you can get some of these heavy rainfall totals, so now is the time to be prepared."

Graham said there could be waves in the Gulf of Mexico up to 15 feet, and that cruise ships and other boats were avoiding Gordon's path.

The storm surge — the quick rise in water caused by a hurricane's strong winds — could reach 2 to 5 feet from the western middle of the Florida peninsula to the Mississippi-Alabama border, and 1 to 2 feet from the mouth of the Mississippi River to the Louisiana-Texas border.

"The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline," the NHC forecast warns.

A hurricane watch is in effect from the Alabama-Florida Border to the mouth of the Pearl River in Louisiana.

A tropical storm warning is in effect along the southern Florida coast from Miami to Naples, and along the Gulf Coast from Pensacola, Florida to Morgan City, Louisiana.

Join the conversation about this story »

NOW WATCH: What you're really seeing during a meteor shower

Expensive Swiss mechanical watches don't have much practical use on the field, court, or track, though it's not uncommon to see the world's biggest athletes wearing high-end, luxury timepieces during their events.

Nevertheless, watch brands are eager to sponsor elite athletes, from fighters like Floyd Mayweather to tennis champions like Roger Federer and Rafael Nadal, not for their horological expertise but for their aura — which sells.

We got a helping hand from the experts at Crown & Caliber to determine the make and models of 20 timepieces worn by the world's top athletes.

Scroll down to see them ranked in ascending order of price:

SEE ALSO: 10 luxury watches that are actually worth the investment

Neymar — Gaga Milano, $2,100.

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Neymar's love of watches is well documented, with his trip to a Gaga Milano store ending in a $180,000 purchase and an endorsement deal.

Despite his own line of timepieces being on the lower end of the luxury watch bracket, it looks as though he has some special editions worth much more in his collection. 

Price according to Gaga Milano.

Tom Brady — TAG Heuer Carrera Chronograph 01, $3,250.

Five-time Super Bowl champion Tom Brady partnered with Tag Heuer in 2015.

"His jaw is famous. His hair is famous. His right arm is famous. Now his left wrist is, too," Alex Williams wrote for The New York Times that year.

Last year, Tag Heuer released a special edition Tom Brady chronograph, which retailed at $5,600.

Price according to Crown & Caliber.

Andy Murray — Rado Hyperchrome XXL, $3,475.

When Andy Murray won his first Wimbledon Championship in 2013, he was a Rado brand ambassador, and as soon as he won, he reportedly hurried to slap on his Rado Hyperchrome.

He put it on so quickly he didn't notice that it was seven hours out. He has since dropped Rado as a sponsor and instead works with brands such as Jaguar and Under Armour.

Price according to the Daily Mirror.

• Serena Williams is used to A-listers attending her tennis matches.
• And the US Open is no different as her husband Alexis Ohanian was spotted in the crowd during Sunday's match, alongside Glamour magazine's new editor-in-chief Samantha Barry.
• Ohanian and Barry watched Williams book her place in Tuesday's quarterfinal with a Round of 16 win over Kaia Kanepi.
• Barry said the event was "inspiring" and thanked Ohanian for the "last minute invite."

Serena Williams is used to A-listers attending her tennis matches, and her US Open Round of 16 victory over Kaia Kanepi on Sunday was no different.

Williams toppled Kanepi by two sets to one and booked her place in Tuesday's quarterfinal against Karolína Plíšková.

She is now three wins away from a seventh US Open championship title — and cheering her on during every shot were her husband Alexis Ohanian and his guest Samantha Barry, the new editor-in-chief of renowned Condé Nast women's magazine Glamour.

Ohanian and Barry watched in the crowd as Williams blasted past Kanepi, winning the first set in just 18 minutes and converting all three break points, without dropping a single point on her serve. Kanepi managed to restore parity in the second set, but it was business as usual in the third set as Williams romped to a 97-minute win.

Barry posted two photos courtside and said the event was "inspiring." She also hashtagged one of the photographs "tennis tutu" — a nod to Williams' headline-grabbing outfits.

Ohanian and Barry can be seen in the crowd right here:

Barry grabbed a post-match selfie and video with Ohanian, thanking the Reddit co-founder for the "last minute invite."

There are only eight athletes left in the women's US Open singles event.

Williams and Plíšková, a 2016 US Open finalist, fight for the right to move into the final four in Tuesday's encounter at the Arthur Ashe Stadium in Flushing Meadows, Queens, New York.

SEE ALSO: Serena Williams says she couldn't focus during the heaviest defeat of her entire career because her sister's murderer had just been released from prison

DON'T MISS: Nike just dropped a moving ad showing a 9-year-old Serena Williams being encouraged on the court by her father — and he told her to play 'like you're at the US Open'

UP NEXT: Serena Williams' French Open catsuit ban is '10,000 times worse' than the US Open sexism row, according to Alizé Cornet

Join the conversation about this story »

NOW WATCH: What it takes to be a World Cup soccer player

• Critics have been lukewarm on the new Amazon series "Tom Clancy's Jack Ryan," but audiences are into it. 
• The series premiered on Amazon Prime last Friday, and it currently has a 72% critic rating on Rotten Tomatoes. 

Amazon's latest series, "Tom Clancy's Jack Ryan," received mixed reviews from TV critics ahead of its premiere, but audiences have greeted it with a warmer reception after its debut last Friday. 

John Krasinski ("A Quiet Place") stars as Ryan, an anti-terrorist CIA operative, in the first TV series take on a character that originated in a series of novels by Tom Clancy. The character has also appeared in five previous film adaptations, beginning with 1984's "The Hunt for Red October."

Amazon has described the series as tracking Ryan's efforts in "a deadly game of cat and mouse throughout Europe and the Middle East, with a rising terrorist figurehead preparing for a massive attack against the US and her allies."

The show currently has a 72% "fresh" rating among critics on Rotten Tomatoes, but it stands at a 90% audience rating on the site.

Critics have ranged from positive to negative on the series, with reviewers on both sides of the spectrum calling Krasinski's Ryan a bland character. 

"Amazon's 'Jack Ryan' succeeds by spinning a suspenseful, big-budget adventure about terrorism around the blandest action hero in the business," NPR's Eric Duggan wrote in a review.

"It's hardly a good thing when you realize a series could be improved if only the producers edited out the star," Mark A. Perigard wrote for the Boston Herald. 

But fans of the series have reacted to it more positively than critics. 66% of Amazon users have given it a 5-star rating on the show's Prime page, with the average rating being 4.1 stars. 

"This isn't the Jack Ryan of the novels, nor the Jack Ryan of the movies. It's a fresh, relevant take on the character set against the backdrop of terrorism in our world today," Amazon user SpyMagician wrote in a 5-star review. "The plot is intricate and the antagonist is extremely well fleshed out. Not at all a cookie cutter movie terrorist, but a character with depth that makes his actions all the more terrifying."

Watch the series on Amazon Prime.

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The hardest part of going camping might be getting started. The upfront cost forces newbies to shell out for a tent, sleeping bags, and other gear. There are 13,000 public campsites in North America to choose from, and no definitive review site vetting them.

It can be overwhelming.

Tentrr wants to take the hassle out of camping. Launched in 2016, the "Airbnb for camping" lets users find and book upscale campsites on private land.

The company has just announced it's opening 10 sites in the San Francisco Bay Area — its first expansion outside the East Coast. The majority of sites will be in Santa Cruz and Sonoma Counties, with another 50 Bay Area campsites in the pipeline for spring 2019.

We talked to investment banker turned startup founder Michael D'Agostino on why Tentrr could be the future of weekend getaways.

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The mission of Tentrr is simple. "We want you to be able to run around naked and enjoy nature as you wanted to when you were a kid ... without scaring the neighbor," D'Agostino told Business Insider.

Tentrr has nearly 500 campsites across the Northeast. They sit on privately owned land, where guests can relax and recharge in peace.

Each rental comes equipped with a canvas tent on a large wood platform, a queen-sized air mattress, two Adirondack chairs, a fire pit, cookware, and a portable toilet.

• Arizona Gov. Doug Ducey will appoint former Sen. John Kyl to fill the vacant seat left by John McCain, who died on August 25. 
• Kyl represented Arizona in the US Senate for 18 years, until current Sen. Jeff Flake replaced him in 2013.

Former Arizona Sen. John Kyl will return to Washington as the replacement for the late Sen. John McCain, the Arizona Republic reported Tuesday afternoon.

Arizona Gov. Doug Ducey will announce Tuesday that he will appoint Kyl to serve in the seat left vacant after McCain passed away in August, after having notified McCain's family and other political officials, the Republic added.

The report also noted that Kyl, who served in the US Senate for 18 years until being replaced by Jeff Flake in 2013, will serve in the role until the end of the year and it will be up to him if he wants to continue. If not, Ducey could appoint another individual to the seat.

"There is no one in Arizona more prepared to represent our state in the U.S. Senate than Jon Kyl," Ducey said in a statement. "He understands how the Senate functions and will make an immediate and positive impact benefiting all Arizonans. I am deeply grateful to Senator Kyl for agreeing to succeed his friend and colleague of so many years."

"Every single day that Jon Kyl represents Arizona in the United States Senate is a day when our state is being well-served," he added.

McCain's wife, Cindy, wrote on Twitter that she is supportive of Kyl's appointment to the seat.

The move to appoint Kyl to the seat comes days after McCain's funeral and a week of ceremonies and events honoring the longtime senator and war hero.

McCain was buried at the United States Naval Academy in Annapolis, Maryland on Sunday. 

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• Chicago Mayor Rahm Emanuel announced Tuesday he won't seek reelection for a third term in 2019.
• Emanuel, who took office in 2011, was a Democratic congressman and former chief of staff to President Barack Obama. 
• His eight-year tenure as mayor was marked by controversies over education policy and police violence. 

Chicago Mayor Rahm Emanuel announced Tuesday he won't seek a third term in 2019, a decision the Chicago Tribune called a "dramatic political reversal."

Emanuel said Tuesday that being mayor "has been the job of a lifetime but it's not a job for a lifetime." The Tribune says he had already raised more than $10 million for another run for a four-year term.

Emanuel, 58, was a Democratic congressman and chief of staff to President Barack Obama before becoming mayor in 2011. He followed Richard M. Daley, who was mayor for more than 20 years.

Obama called Emanuel a "tireless and brilliant public servant" in a Tuesday statement released after the announcement of his retirement. 

"With record job growth and record employment over his terms in office, Chicago is better and stronger for his leadership, and I was a better President for his wise counsel at a particularly perilous time for our country," Obama wrote. 

Emanuel's eight-year tenure was marked by a series of controversies over his leadership. He was resoundingly criticized for his 2013 decision to close 50 public schools on Chicago's South Side, but successfully introduced universal pre-K and two years of tuition-free community college for public school graduates in Chicago. 

His City Hall also came under scrutiny for its handling of the shooting of Lacquan MacDonald by a Chicago police officer, which prompted a civil rights investigation by the Department of Justice and calls for his resignation.

In the wake of the shooting, however, Emanuel took steps to reform police department practices, including bringing in a new superintendent and requiring officers to wear body cameras.

The Tribune reports that 12 candidates have already announced their intention to run to replace Emanuel. 

"I’ve been blessed to call Rahm my friend," Obama said. "Whatever he chooses to do next, I know he’ll continue to make a positive difference, just as he has throughout his career in public service. "

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• Burning Man is an annual, nine-day gathering in the Nevada desert.
• It's held the week prior to and including Labor Day weekend each year. It includes artistic performances, installations, music, and a lot of partying.
• No money is exchanged at Burning Man, so participants are expected to bring food, supplies, shelter, and anything else they might need.
• The cost of tickets in 2018 ranged from $425 to $1,200.

In order to truly understand Burning Man, the annual summer event held in the middle of the Nevada desert, you probably just have to go. 

The nine-day gathering of 70,000 people includes wild costumes, art installations, spontaneous musical performances, and lots of partying. 

Burning Man closed with the burning of the Temple Galaxia, a 65-foot wooden structure that symbolizes how the fabric of the universe connects all living beings. For the burning of the temple, people created memorials for deceased loved ones and past relationships, according to the Reno Gazette Journal.

With 2018's Burning Man event having ended on September 3, Business Insider has compiled answers to some of your most burning questions about Burning Man.

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What is Burning Man?

Burning Man is an annual, nine-day gathering in the desert that includes artistic performances, installations, and music — but don't call it a festival.

"Burning Man is not a festival. Burning Man is a community. A temporary city. A global cultural movement based on 10 practical principles," the official website reads.

A few of these principles include radical inclusion ("Anyone may be a part of Burning Man"), gifting, decommodification (no money passes hands at the festival), radical self-reliance and self-expression, leaving no trace (" We are committed to leaving no physical trace of our activities wherever we gather"), and participation.

Burning Man is organized by a non-profit organization called the Burning Man Project.

When is Burning Man?

The end-of-summer event takes place each year during the week leading up to and including Labor Day weekend, according to the official website.

The 2018 dates are August 26 through September 3.

Where does Burning Man take place?

The event is held at a temporary metropolis called Black Rock City in the remote Black Rock Desert — called "the playa" — in Nevada.

Black Rock City is made up of tents and RVs brought by participants. 

• President Donald Trump reportedly lied, contradicted himself, and burst out in anger during a mock interview with his lead attorney in preparation for a possible sit-down interview with special counsel Robert Mueller.
• The episode was recounted in an excerpt of an explosive forthcoming book about the Trump administration written by Pulitzer Prize-winning investigative journalist Bob Woodward.
• Trump's lawyers are still negotiating the terms of a possible interview with Mueller.

President Donald Trump couldn't get through a mock interview in preparation for a possible sit-down with the special counsel Robert Mueller without lying, contradicting himself, and eventually exploding in anger, according to a new book from Washington Post editor and legendary investigative journalist Bob Woodward.

The previously unreported episode is described in the book "Fear: Trump in the White House," which the Post reported on Tuesday. Trump's former lead attorney John Dowd, who left Trump's legal team in March, reportedly did a practice session with Trump in January for the possible Mueller sit-down to "prove his point" that Trump would perjure himself.

After Trump couldn't adequately answer a series of rapid-fire questions Dowd asked him about the Russia investigation, the president "lost his cool," according to the Post and Woodward.

"This thing's a goddamn hoax," Trump reportedly exclaimed, launching into a "30-minute rant" before he said, "I don't really want to testify."

"Fear" is based on "hundreds of hours" of interviews Woodward had with administration officials, government documents, and notes.

The book also recounts a meeting between Dowd and Trump lawyer Jay Sekulow with Mueller in which Dowd reportedly cited the disastrous practice session as a reason why Trump could not be interviewed.

"I'm not going to sit there and let him look like an idiot," Dowd is quoted as telling Mueller. "And you publish that transcript, because everything leaks in Washington, and the guys overseas are going to say, 'I told you he was an idiot. I told you he was a goddamn dumbbell. What are we dealing with this idiot for?'"

Later that month, Dowd reportedly told Trump: "Don't testify. It's either that or an orange jumpsuit."

When Trump protested Dowd's concerns, claiming he would be a "real good witness," Dowd reportedly contradicted that and said, "Mr. President, I'm afraid I just can't help you."

Dowd resigned the day after that exchange, according to the book.

The White House and Dowd did not immediately respond to Business Insider's requests for comment on the book.

A Trump-Mueller interview is still up in the air

Trump's legal team and the special counsel's prosecutors have been engaged for several months in unsuccessful negotiations over the terms of a possible voluntary interview with Trump.

Lawyers for Trump, including lead attorney Rudy Giuliani, have claimed that allowing Trump to participate in such an interview would be sending him into a "perjury trap," a claim former federal prosecutor Roland Riopelle called "legally discredited" in an August interview with Business Insider.

The Washington Post reported in March that during one failed negotiation, Mueller threatened to issue a subpoena ordering Trump to testify before a grand jury if he did not agree to a voluntary interview.

While Giuliani has told Business Insider that he plans to fight such a subpoena "before the Supreme Court," legal and constitutional experts have expressed doubt that Trump would be able to successfully quash it based on previous precedent set by the Supreme Court requiring Richard Nixon to comply with a grand jury subpoena.

Bob Woodward's "Fear: Trump in the White House" is set to be published by Simon & Schuster on September 11.

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• White House chief of staff John Kelly reportedly once said he would have taken a "resignation letter and shoved it up" President Donald Trump's "ass six different times."
• The remark was recounted in a new book by Washington Post journalist Bob Woodward, titled "Fear: Trump in the White House."
• Kelly was reportedly speaking to Trump's then-economic adviser Gary Cohn, who tried to resign over Trump's approach to a white-supremacist rally in Charlottesville, Virginia, last summer.

White House chief of staff John Kelly was reportedly so furious over President Donald Trump's reaction to a white-supremacist rally in Charlottesville last summer, he once said he would have taken a "resignation letter and shoved it up his ass six different times."

Kelly's comment is recounted in a new book titled "Fear: Trump in the White House" by Washington Post journalist Bob Woodward, based on hundreds of hours of interviews Woodward conducted with people on condition of anonymity. The Post summarized Woodward's book in an article on Tuesday.

Kelly made the remark about the resignation letter to Trump's former top economic adviser, Gary Cohn, whom Trump had talked out of quitting, according to Woodward.

During internal White House meetings, Kelly made little secret of his disdain for Trump's intellect, according to Woodward. Since taking the job as chief of staff, Kelly has reportedly called Trump "unhinged," an "idiot," and told fellow staffers, "This is the worst job I've ever had."

Woodward recounted one small meeting where Kelly said it was "pointless to try to convince [Trump] of anything. He's gone off the rails. We're in Crazytown. I don't even know why any of us are here."

Kelly has even reportedly threatened to resign multiple times but never went through with it, Woodward wrote.

During Kelly's discussion with Cohn over the resignation letter, the men had reportedly been discussing their revulsion at the way Trump handled the aftermath of the violent rally in Charlottesville, Virginia, which left one woman dead.

Trump initially gave a widely criticized speech, in which he said there were "very fine people on both sides." But according to Woodward, when Trump gave a follow-up speech denouncing white supremacists and neo-Nazis, he called it the "worst speech I've ever given."

"That was the biggest f---ing mistake I've made," Trump reportedly said.

In response to the allegations in Woodward's book, White House press secretary Sarah Huckabee Sanders said the book was merely "fabricated stories" from "disgruntled employees."

Kelly said in another statement that it's untrue he called Trump an "idiot."

He continued: "As I stated back in May and still firmly stand behind: 'I spend more time with the President than anyone else, and we have an incredibly candid and strong relationship. He always knows where I stand, and he and I both know this story is total BS. I'm committed to the President, his agenda, and our country. This is another pathetic attempt to smear people close to President Trump and distract from the administration's many successes.'"

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• President Donald Trump once called Attorney General Jeff Sessions a "dumb Southerner" and mocked his accent behind his back, the journalist Bob Woodward wrote in his coming book, a copy of which was reviewed by The Washington Post.
• Trump also called Sessions "mentally retarded" and described him as a "traitor" for recusing himself from the Russia investigation, the book says, according to The Post.
• Trump has frequently been said to insult his attorney general. 

President Donald Trump once called Attorney General Jeff Sessions a "dumb Southerner" and mocked his accent behind his back, the journalist Bob Woodward wrote in his coming book, a copy of which was reviewed by The Washington Post.

Trump also described Sessions as a "traitor" for recusing himself from the Russia investigation, the book says, according to The Post.

Woodward also reportedly wrote that Trump, mimicking Sessions' Southern accent, called his attorney general "mentally retarded" and said that Sessions "couldn't even be a one-person country lawyer down in Alabama."

The revelations in Woodward's book, "Fear: Trump in the White House," set to be released next Tuesday, represent the latest episode in a public feud between Trump and Sessions since the attorney general's recusal in March 2017.

In an interview with Fox News in August, Trump said that the reason he tapped Sessions to be his attorney general was Sessions' loyalty during the 2016 presidential campaign. Trump also suggested that Democrats had more power and influence within the Justice Department than Sessions.

Sessions responded with a rare rebuke of Trump, saying, "The actions of the Department of Justice will not be improperly influenced by political considerations."

On Monday, Trump accused Sessions of jeopardizing Republicans' chances in the midterm elections by bringing charges against two GOP congressmen in August.

Though Sessions was one of the earliest backers of his 2016 presidential campaign, Trump is said to still want to fire him as attorney general.

The White House responded to Woodward's book later Tuesday.

"This book is nothing more than fabricated stories, many by former disgruntled employees, told to make the president look bad," the White House press secretary, Sarah Huckabee Sanders, said in a statement.

And the White House chief of staff, John Kelly, decried the book as "another pathetic attempt to smear people close to President Trump and distract from the administration's many successes."

SEE ALSO: Trump accuses Jeff Sessions of hurting Republican congressional races in a fresh attack on his attorney general

READ MORE: Attorney General Jeff Sessions fires back at Trump in rare rebuke

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