It's weird that the one room in your house where you're constantly killing time waiting for the microwave to finish, or the stove to heat up, has the least number of distractions to keep you entertained. And a fridge covered in magnetic poetry (yawn) isn't the answer, but a magnetic Newton's Cradle hanging from the…
If you're curious about what would happen if a perfectly hit cue ball hit a perfectly aligned pool rack perfectly in the middle, well here's what it will look like. It's mathematically perfect. Not even the best pool players in the world, magnet breakers or robots can even get it to look like this.
You've seen Newton's balls before. You might even have one on your desk. You know, the thing that demonstrates energy transference. But I can guarantee you've never seen it in action like this before (truth be told, it was faked).
Because the only thing better than cat videos is combination physics/cat videos. Quoth the folks at Funnycatsandnicefish:
Newton's Cradle is well-known for its repeating clicks, and gracing the desks of executives everywhere. This fragile, but awesome installation by Yasutoki Kariya changes things up a bit by using light bulbs instead of metal spheres. Surprisingly, they manage not to shatter.
Everyone's favorite clacking desktop amusement has been weaponized. Well, almost: researchers at CalTech have used Newton's Cradle as a jumping off point for an acoustic weapon capable of ripping through a submarine with its sonic bullets.