Gabby Douglas stood beneath the Rio Olympic Arena, still in her Team USA leotard, trying hard to understand how she had become the most unpatriotic athlete in Rio. Tears filled in her eyes. She tried hard to talk but no words came out. Her pauses were long and uncomfortable.

    “I've been trying to stay off the Internet because there's so much negativity,” she said. The attacks against her have been everywhere these last few days. The bullies blamed her for not putting her hand over her heart while the US national song played. Besides, some other people attacked her for not jumping up and cheering hard enough for team-mates at the all-around final. All of this prompted her mother, Natalie Hawkins, to tell Reuters this weekend, that Douglas is “heartbroken”.

    It showed on Sunday, in Douglas's final performance of this Olympics and maybe in the Games ever. Douglas finished sixth in the uneven bars, far from the medal stand she owned four years ago in London, and shook her head, confused. What had she done wrong? Nothing made sense.

    “I mean, you do [Olympics] for your country, and you do it for yourself, how have I offended them? What have I done? I was standing in respect for USA. I'm coming out there representing them to the best of my abilities, so how would I be in disrespect?

    Where to Drink

    Cafe San Bernardo

    Join table-tennis and pool-playing port. Cafe San Bernardo has been running since 1912. The Villa Crespo dive bar also offers up table football for￡4 an hour. Service is efficient; with last orders at 5 am. The daily happy hour between 6 pm and 9 pm includes 60 minutes playing your game of choice, plus a half bottle of red wine and a corn pie, for￡9.

    Avenue Corrientes 5436, Villa Crespo, 5411 4855 3956, cafesanbernardo. com

    M Salumeria & Enoteca

Trading only in wine with a story, sommelier (侍酒师）Mariana Torta chooses new ways on a daily basis, and keeps a list of around 250 labels. There's no wine menu—simply take your bottle from the shelf.

    Open 11:00am-11:30pm, El Salvador 5777, Palermo Hollywood, 5411 4778 9016, on Facebook

    Negro Cueva de Cafe

    Coffee has found its place in Buenos Aires. While LAB: Tostadores, the Shelter and Coffee Town are famous new places, Negro Cueva de Cafe is one of the best bars. It serves Ecuadorian, Colombian and Brazilian beans and its attracting cakes include croissant.

    Open 9:30 am—7:00 pm, Suipacha 637, Microcentro, 5411 4322 3000, negrocuevade-cafe. com

    La Calle

Head to the Niceto Vega address and you'll be faced with a pizza. Don't worry, it's the right place. La Guitarrita is the front to “hidden” bar La Calle. Order the house cocktail, special candy, and prepare to sing until dawn with a high-energy young crowd.

    Open 8:00 pm—2:00 am, Niceto Vega 4942, Palermo Soho, 5411 3914 1972, on Facebook

    Most heroes are not super. They don't appear in comic books, on television, or in movies. They just do what they believe needs to be done to make their world a better place. Bike Batman is one of them.

    Bike Batman is a 30-year-old married engineer who lives in Seattle, Washington. He's a cyclist who also buys and sells bikes as a hobby.

    About three years ago, he was looking for a bike for his wife. He found one on Craigslist, a website where people list things they want to sell. As he often does, he also looked at Bike Index, a popular website that allows users to register their bikes and post reports when they're taken. The bike, which he was considering purchasing, clearly matched one reported stolen on Bike Index.

    Then he called the person who claimed to be the bike's owner and arranged to meet him— supposedly to complete the sale. When the two men met, Bike Batman told the thief, “You've got two options. You can wait until a police officer gets here, or you can just get out of here.” You can imagine what the thief did.

    After that first success, Bike Batman developed a safer routine. When he sees questionable bike ads on Craigslist, he cross-references the image with bikes reported on Bike Index. Once he has confirmed it with the owner, he arranges a meet-up with the thief and will call the Seattle police department so that officers can participate in the action. In more than half of the 22 cases in which he has got back and returned bikes, the thieves have been arrested. In one case, Bike Batman even helped a family recover a wide range of prized possessions that suspects had stolen during a home burglary.

    His nickname came from a discussion with a police officer who suggested he be called “Robin Hood”. Since he wasn't exactly stealing from the rich and giving to the poor, “Batman” seemed a better fit. The idea of a superhero punishing criminals feels pretty silly to him, but the main reason he continues his work is to keep up Seattle's reputation as a friendly city.

    Most people who own iPhones use them as their alarm clocks―making it very easy to check emails one last time before falling asleep and hard to ever feel away from work and social networks.

    Several years ago, my boss fainted due to exhaustion after staying up late to catch up on work. She banged her head and ended up with five stitches (缝针) and became what she calls a "sleep evangelist (传教士)." Now she leaves her phone charging in another room when she goes to bed and encourages her friends to do the same.

    "I sent all my friends the same Christmas gift―a lovely alarm clock―so they could stop using the excuse that they needed their very attractive iPhones by their beds to wake them up in the morning." she said.

    If your phone wakes you up in the morning, it may also be keeping you up at night. A 2008 study showed that people exposed to mobile radiation took longer to fall asleep and spent less time in deep sleep. "The study indicates that during laboratory exposure to 884 MHz wireless signals, components of sleep believed to be important for recovery from daily wear and tear are severely affected," the study concluded.

    A quarter of young people feel like they must be available by phone around the clock, according to a Swedish study that linked heavy cellphone use to sleeping problems, stress and depression. Unreturned messages carry more guilt when the technology to deal with them lies at our fingertips. Some teens even return text messages at midnight.

    Most of us choose not to set limits on our nighttime availability. Nearly three quarters of people from the age of 18 to 44 sleep with their phones within reach, according to a 2012 Time poll. That number falls off slightly in middle age, but only people aged 65 and older are leaving the phone in another room as common as sleeping right next to it.

    Here are some of the strangest aviation(航空)ideas in recent history.

    Double-Decker Seating

    In 2015, Airbus filed a patent for a design for a double-decker cabin seating arrangement. Passengers would sit on top of the other, with upper-tier passengers climbing steps or a small ladder to reach their seats. While the design does have some advantages, the idea of climbing a ladder during flight seems unreliable.

    Separated Cabins

    This patent was awarded to Airbus. Rather than waiting for a flight to arrive and be cleaned,passengers could simply board a ready cabin, which would be moved into the plane's body as soon as it was ready. When the plane reached its destination, the cabin would be separated again. Different cabins with different kinds of seating or levels of comfort could be used for flights of different lengths or destinations.

    Windowless Cockpits(驾驶舱)

    For ideal design, airplane noses should be long and pointy. But there's the whole "pilots have to fit in the cockpit" problem. Well, what if the cockpit didn't have to go in the nose of the plane? That's part of the thinking behind this Airbus patent application* which suggests replacing the plane's window with a digital viewing surface. Without a window, there's no reason the cockpit needs to go in the front of the plane —it could go in the middle of the plane, or even in the tail.

    Nap Straps (睡眠吊带)

    Airbus is not the only company in the strange patent contest. Boeing's got its own patent, Nap Straps. With this invention, passengers looking for a nap can find an "upright sleep system^" beneath their seat. In action, the whole thing is somewhat like a traction device for someone who's been in a terrible accident.

Barrington Irving made his historic flight and founded an educational non-profit-making organization.The secret,he believes,is having a dream in the first place,and that starts with learning experiences that inspire kids to build careers.

The moment of inspiration for Irving came in his parents' bookstore.One customer,a professional pilot,asked Irving if he'd thought about becoming a pilot."I told him I didn't think I was smart enough;but the next day he took me to the cockpit(驾驶舱)of the commercial airplane he flew,and just like that I was hooked."

To follow his dream,Irving turned down a football scholarship to the University of Florida.He washed airplanes to earn money and increased his flying skills by practising at home on a $40 flight simulator(模拟) video game.Then another dream took hold:flying alone around the world.He faced more than 50 rejections for sponsorship before convincing some companies to donate aircraft components.He took off with no weather radar,no de-icing system(除冰系统),and just $30 in his pocket.

After 97 days,26 stops and dozens of thunderstorms,he touched down to a cheering crowd in Miami."It was seeing so many young people watching and listening that pushed me into giving back with my knowledge and experience." Irving has been doing it ever since.He set up his non-profit-making organization,Experience Aviation(航空),aiming to increase the numbers of youth in aviation and science-related careers."We want to create chances for students to accomplish something amazing,"he notes.The most powerful educational tool is the example his own life provides.