Wow, I gotta get a copper pipe and some magnets and try this myself:

(via kottke)

Richard Feynman on “why” (and magnetism, and why ice is slippery, and more). I could watch Feynman videos all day. (via kottke)

Identical to the previously mentioned $30 NeoCube are the $20 BuckyBalls. Can’t decide how I feel about this. Competition is good, saving $10 is good, you can’t protect an idea, just an expression of the idea, etc. But still. Anyway, very cool toy. I’ll have to get one, I’m just not sure from who.

Following right on the heels of yesterday’s grisly post comes another neodymium link, but this one replaces “grisly” with “cool”: Cool Tools on the NeoCube. I want one.

P.S. NOT for little kids. Having one in one part of your intestine and another in another part, and having them lodged because they attract each other through the intestinal walls would not be good. See, couldn’t quite avoid the “grisly” when dealing with these suckers.

Just yesterday I was talking to my dad and brother about how painful it can be to catch your finger between two neodymium (rare earth) magnets, and that was just talking about little ones. Then, today, what should cross my aggregator but these very graphic images of Dirk’s accident. He had his fingertip crushed off when two of his large magnets slammed together. He thought he was safe because they were almost two feet apart before it happened. (via waxy)