The Kid Should See This

Levitating pumpkins! Halloween superconductor science

What happens when you put a cooled superconductor, in this case, a YBa2Cu3O7 ceramic disk, into a tiny pumpkin and then place them both onto some neodymium magnets? Levitating pumpkin!

In this Ri Channel video, superconductivity possesses a pumpkin with the help of some liquid nitrogen and a specially built magnetic track. The introduction to a DIY experiment from Education.com:

Superconductors are materials that conduct electric current with no resistance. Electrical resistance is the property of a material to oppose current passing through and is found in nearly everything from light bulb filaments to your own body. Superconductivity occurs at extremely low temperatures and induces, or creates, a strong magnetic field. The current that flows at the surface of the superconducting material creates these magnetic fields. Inside the superconductor, the magnetic fields are canceled out, but outside they are strong and can levitate a magnet.

Read more about the phenomenon: A Closer Look at Quantum Magnetic Levitation and the Meissner effect.

Watch more about the phenomenon: Levitating Superconductor on a Möbius strip and Quantum Levitation: A mind-blowing demonstration and explanation. Bonus: More liquid nitrogen and more levitation vids.

This award-winning video collection is reader-supported. Become a sustaining member to keep TKSST online and free for everyone, including teachers and parents who use it as a resource to spark learning and curiosity for kids.

🌈 Watch these videos next...

How to make Halloween jack-o-lanterns with scary teeth

Rion Nakaya

Ray Villafane turns pumpkins into artfully carved Jack-o’-lanterns

Rion Nakaya

A Pumpkin’s Life

Rion Nakaya

Instant Ice Crystals – The Secret Life of Ice

Rion Nakaya

Argonne National Laboratory: Acoustic levitation

Rion Nakaya

Hydrodynamic Levitation

Rion Nakaya

To the Scientists of the Future: Materials science with EUPHRATES

Rion Nakaya

Levitating Superconductor on a Möbius strip

Rion Nakaya

The Meissner Effect: How to levitate a neodymium magnet

Rion Nakaya

Get smart curated videos delivered every week.    
Subscribe