It has not been a proud week for America, what with the current administration randomly deciding to remove us as signatories to the Paris Climate Agreement and all. Luckily, the United States is still a nation of self-starters and problem-solvers who are willing to stand up, as 100 cities and six states across the country did on Thursday, and pledge to tackle climate change themselves -- with or without help from the Feds.

They're not the only ones, researchers from Keio University have developed a pair of robotic arms to help their user out when nobody else is around while a team from Harvard University showed off robotic shorts that make you run faster. Numbers, because how else would you know which is the loneliest one?