Video Friday is your weekly selection of awesome robotics videos, collected by your Automaton bloggers. We'll also be posting a weekly calendar of upcoming robotics events for the next two months; here's what we have so far (send us your events!): Let us know if you have suggestions for next week, and enjoy today's videos. We've written about extra robot arms for humans in the past, but these are more complicated and perhaps capable than most: I'm not completely sold on the control system here, since it essentially means you're trading the use of your legs for the use of some extra arms. If this isn't enough reason to get a RoboThespian, I don't know what is: ROBOTIS was running this demo at ICRA as well; the first TurtleBot is using its laser for person-detection and following, while the other TurtleBots are wirelessly following the first.

Matthew Wojciechowski, a fit and healthy retired U.S. Navy SEAL, was working as a contractor for the CIA's Global Response Staff in a Middle East outpost. Suddenly on Dec. 21, 2011, he was struck with crippling chest pain and was soon shaking violently. "I felt like I was going to die, and as an American citizen, I was trying to get some help," he told Fox News. "But was told because I was a contractor I was under a different set of rules for care." So instead of being examined by a U.S. medical professional at the consulate, Wojciechowski said he was shocked that he was sent to a local hospital – and seen by a doctor who did not speak English – who misdiagnosed him simply as having heartburn.

"Gaokao" week in China is a stressful time for students taking college entrance exams (like the SAT or ACT in the United States) as students have high hopes of garnering acceptance to a top university and eventually landing a white collar job. With such high stakes some students, however, find themselves resorting to desperate measures for good scores. With cheating being more prevalent during "Gaokao" week, authorities are cracking down on the widespread problem among the teen students who take the two-day exam each year. After years of students using sophisticated technology like small ear pieces and wireless devices designed to look like ordinary belts, pencil erasers and more to cheat, authorities are responding with some counteractive technology. They're using drones, facial recognition software, metal detectors and more to try to eliminate cheating in all forms, reports Reuters. Some provinces in the country require that students go through fingerprint scans as well as facial recognition scans just to get into the exam.

As every scrap of James Comey's testimony before the Senate Intelligence Committee is pored over and picked apart, one word gleams brighter than any other. It is a common word, employable as both a noun and a verb, and it boasts an extraordinary breadth. We may say, "I hope to catch the 6:42 A.M.," or "I hope the kids don't catch a cold," and, at the other end of the spectrum, Christians are exhorted to pray "for all who have died in the hope of the Resurrection." So where do the hopes that Comey cited yesterday, in his own utterances and in his reports of others' speech, belong? First, we have his homely dictum, which is already destined to wind up on a thousand T-shirts, or in the chorus of a country ballad: "Lordy, I hope there are tapes."

Her company Wearable X designed Fundawear -- vibrating underwear for couples in long distance relationships that can be controlled by smartphones. It also created the Fan Jersey -- a shirt that uses haptic vibrations so sports fans can "feel" players' emotions during a game. Whitehouse's first product that's available for people to actually purchase is NadiX yoga pants. The pants have five sensors sewn in to help the wearer improve form for 30 different yoga poses. Once in a pose, the sensors vibrate in specific ways to tell you how to adjust your hips, knees or ankles.

Airbnb has been active in using big data and machine learning to create better user experience. Hosts can maximize their rentals whereas visitors can find their most preferred accommodation. "Airbnb is a data informed company. We think data is the voice of our customers," said Ricardo Bion, Data Science Manager at Airbnb who spoke at the Cloud Expo Asia in Hong Kong at the end of last month. "From the moment customers visit our website, search and book lodgings, review and share information about their trips, we have been collecting a lot of information about our customers."

After six years in incubator development, KBS Albion and start-up Ada Health have released a artificial intelligence (AI) engine and app to provide health assessments in response to real-time patient symptom data. Berlin-based health tech startup Ada Health approached London-based KBS Albion to help develop this app. "Almost all our work is analogous to the work we did for Ada, blending business innovation with brand and product design," says Adam Lawrenson, ECD, KBS Albion. KBS and Ada had to conduct a "huge amount" of upfront research to understand consumer responses to digital health globally. "To do this, we had to design a specific methodology," with help from University College London, says Lawrenson. "We then had to create a name, brand and identity that would resonate globally.

Libratus, the poker-playing AI that crushed four world-class pros in January, has put another group of human players to shame. This time, the upgraded variant of the AI known as "Lengpudashi" or "cold poker master" took on World Series veteran Alan Du and a team of engineers, computer scientists and investors. Instead of using pure poker skills to try and defeat Lengpudashi like the first team did, the new players applied what they know about machine learning to their game. Alas, their strategy didn't work, and the AI still won by a landslide after playing 36,000 hands against the team at a resort on China's Hainan island.

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Editor's Note: This story was originally published on May 9, 2017. It has been updated to reflect developments including Uber's firing of 20 employees following an internal investigation into its corporate culture, as well as self-driving engineer Anthony Levandowski. If you haven't heard (maybe you've been toiling in Elon's tunnels?), Uber has had a rough start to 2017. The Department of Justice has launched a criminal probe into the company's use of "Greyball," a system it used to identify regulatory officials and block them from booking rides. In January, it lost riders who objected to CEO Travis Kalanick's (soon abandoned) seat on President Trump's economic council.