If you’re bored at home (or heck, even in the office), you could have a bit of fun imploding soda cans. It’s surprisingly easy, and requires absolutely no force. What you do is fill up an empty soda can with about 1 ounce of water, heat it up until it’s steaming, then turn it upside down and dunk it in ice water. As soon as it hits the water, the steam inside probably condenses immediately, creating a vacuum and allowing the outside air to crush the can. It’s not only fun to do, but also makes you aware that atmospheric air pressure is a real thing, even though we don’t “feel” anything. Could also be a cool trick to do in front of the kids.
VIA [ Sploid ]