To a harried subway passenger, learning that there's a delay ahead can trigger groans, rolled eyes, or mere stoic despair. But commuters might be even more annoyed if they realized the track ahead was perfectly clear: Sometimes, the system holds a train in place to fix a delay behind it. In this 8-bit video, the Metropolitan Transportation Authority explains how slowing down one train can actually reduce the total delay on the line.
Last month, security researcher Chris Roberts was removed from a United Airlines flight, after the airline claimed he had endangered his fellow passengers by tweeting a message about potential security vulnerabilities aboard the aircraft. In 2012, Ars Technica reports, Roberts claimed to have hacked into the International Space Station, according to a recently discovered video.
For many of us, our smartphones are an integral part of our being, containing not just everything we need to communicate but depths of personal information, from our daily schedules to our finances. While last summer the Supreme Court ruled cell phone information is private and therefore protected, that's irrelevant to anyone trying to steal the sensitive bits stored on one. As Rose Eveleth reports for BBC Future, Seth Wahle, an engineer and biohacker, demonstrated that it's possible to steal information off of a phone with a microchip embedded in his hand.