makezine.com

yQR0w TIL: To get a warm drink can cold takes20-25 minutes in a freezer. If you put it in a bucket of ice, that would halve that time. If you put water in that ice, it'd be cold (+- 5c) enough to drink in about 4-6 minutes, if you put salt in that water, you'd reduce the chill time to just over 2 minutes.
WkXno TIL about the art piece "Machine with Concrete" by Arthur Ganson. It's a series of gears and screws driven at 200RPM that end in a final gear embedded in concrete. At that speed it will take over 2 trillion years for the final gear to turn once.
Z89mG TIL Adam Savage and Tory Belleci of Mythbusters worked on the models in the Star Wars Prequels