(つ^౪^)つ━☆゚.*・。゚ Adding new gift ideas every week until Dec 20th: The TKSST Gift Guide »
 
The Kid Should See This

Newton’s Beads: A physics demo by Steve Mould & Earth Unplugged

Watch more with these video collections:

It turns out that a long chain of metal beads behaves in an unexpected way — it seems to levitate and loop up — as it starts to fall out of the cup that it starts in. It’s a phenomenon called Newton’s Beads, and the BBC’s Steve Mould demonstrates it here with a string of 8,000 beads and some slow motion provided by the team at Earth Unplugged.

tumblr_mpagzu7BqX1r0q28po1_1280

Beyond being both fascinating to watch and an easy DIY experiment, it’s also possible to figure out what’s happening by analyzing the video using physics. For more, check out science writer Aatish Bhatia’s calculations on what’s going on in Steve’s demonstration.

Update: Here’s an equally fascinating follow-up at Nature.com. — Physicists explain ‘gravity-defying’ chain trick.

via Empirical Zeal.

tksst gift guide
 

Get 7 smart videos delivered every week.

 

Subscribe