4 ms·
So if good old ferromagnetism/diamagnetism is sufficient to explain the half-levitation shown in the video: How can I build my own half-levitating objects from
by p-e-w 3y ago
So if good old ferromagnetism/diamagnetism is sufficient to explain the half-levitation shown in the video:
How can I build my own half-levitating objects from standard materials?
I've seen the science toys using pyrolytic carbon, but they are nowhere close to the effect from the video. Levitation height with pyrolytic carbon is like 1/20th of what the video demonstrates. The disc in the video looks like it's just about to take off. Can this be replicated with previously known materials at room temperature?
- throwawaymaths 3y agoI believe (could be wrong) diamagnetic levitation also requires arrangements of several magnets that shapes the magnetic field in a particular way
- XorNot 3y agoYes: https://twitter.com/VanGennepD/status/1688052003216261120 https://twitter.com/VanGennepD/status/1688052003216261120 This guy goes into detail how he makes a practical fake which demonstrates the same behaviour: it's ground up carbon, superglue and some iron filings on one end. The pivot point reduces the mass and weights it upright.
- marcosdumay 3y agoGo through iron milling residue (that kind that is dust-like at afar, but consist of large flakes) and select some thin and long piece. Put it over a glass, and move a magnet under it. You will see it position itself on a vertical or any angle you want. But notice that the videos circling the internet show a different behavior. Those are not homogeneous materials, and it's not easy at all to tell what they are actually doing. (But ferromagnetism on LK-99 is surprising by itself.)