If this has been posted before and I just didn't see it, somebody let me know.
High current electromagnetic coil that instantaneously compresses a US quarter to about the size & volume of a dime:
http://intellectualventureslab.com/?p=71
You have to watch closely; this happens kind of fast. They show a bunch of high-speed photos, but the before-and-after still is the visually interesting part, to me. As explained here, it takes a heck of a current to make this work.
L Cottrill
Electromagnetic Coin Shrinker
Moderator: Mike Everman
-
- Posts: 4140
- Joined: Sun Oct 05, 2003 1:17 am
- Antipspambot question: 0
- Location: Mingo, Iowa USA
- Contact: