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Author: Subject: Diamagnetism
DalisAndy
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[*] posted on 8-5-2015 at 11:10
Diamagnetism

How would one go about using the diamagnetic properties of bismuth to make it hover? I'm doing a demo for a class with a superconductor, so I figured I should try showing that off to.
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Detonationology
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[*] posted on 9-5-2015 at 17:41


Cryogenic liquids are typically used to distort the electron configurations of paramagnetic metals, if I remember correctly.
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DalisAndy
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[*] posted on 9-5-2015 at 17:52


Quote: Originally posted by Detonationology  
Cryogenic liquids are typically used to distort the electron configurations of paramagnetic metals, if I remember correctly.


But isn't bismith diamagnetic already?
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Metacelsus
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[*] posted on 10-5-2015 at 05:55


https://en.wikipedia.org/wiki/Magnetic_levitation#Diamagneti...

It would probably be easier to levitate a permanent magnet over bismuth than to do the inverse.



As below, so above.

My blog: https://denovo.substack.com
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DalisAndy
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[*] posted on 10-5-2015 at 10:47


Quote: Originally posted by Cheddite Cheese  
https://en.wikipedia.org/wiki/Magnetic_levitation#Diamagneti...

It would probably be easier to levitate a permanent magnet over bismuth than to do the inverse.


Oh ok, thank you my friend
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MrHomeScientist
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[*] posted on 15-5-2015 at 06:19


I've built one of these demos before (back in high school), and it's very simple and fun. I bought chunks of bismuth off of eBay and melted the metal down and cast it into plates myself. I then took these plates and used pennies as spacers (so you can easily adjust the gap between plates) and put a tiny Nd magnet in between them. You also need a larger 'helper' lifting magnet above this configuration to get some levitation, since the effect from the bismuth alone is so small. I used a wooden scaffold I built and a threaded rod that I could use to dial in the height of the lifting magnet.

Apparently, United Nuclear sells a kit just like the thing I built: http://unitednuclear.com/index.php?main_page=product_info&am...
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