This is the Sony Reon Pocket, a ~$170 smartphone operated personal air conditioner worn in a pocket in the back of a special $20 undershirt so it can make contact with your skin and cool your surrounding body up to 23-degrees Fahrenheit in the summer, and warm it up to

This is a video from Youtuber Art Of Engineering discussing at length how both electromagnetic and pneumatic drop towers work, and how they operate safely. I didn’t actually bother watching the whole video but I assume the answer is they don’t, and every time you ride one you’re risking it

This is a video of Gavin from The Slow Mo Guys (where’s Dan — what did you do to him?!) capturing some footage of an Apple Watch ejecting water from its speaker at approximately 196Hz when Water Lock is turned off. Me? I never remember to turn Water Lock on