Science Demos

How do Maglev trains work? What are comets made of? How do bugs walk on water? These audio slideshows demonstrate these and other concepts related to magnetism, electricity and other areas of science.

Cryo Balloons

What happens when you put balloons in liquid nitrogen? Can cryogens change the properties of the air inside of a balloon? Watch to find out.
(Length: 2 minutes, 04 seconds)

Cryo Bananas

Could you hammer in a nail with a banana? Watch and see.
(Length: 1 minute, 41 seconds)

Cryo Flowers

Can you shatter a rose into a thousand pieces? Watch and find out.
(Length: 1 minute, 54 seconds)

Crystal Growing

Watch crystals grow in this time lapse footage and learn how to grow your own crystals at home.
(Length: 4 minute, 03 seconds)

DC Circuits

Watch this video to see how direct current works.
(Length: 1 minute, 12 seconds)

Eddy Currents in Action

What happens when different materials are released in the finge fields of the world's strongest magnet? It's a race that appears to defy gravity, but is instead an amazing way to see the effect of eddy currents on metals.
(Length: 2 minutes, 37 seconds)

Ferromagnetic Football

What happens when you throw a magnetic football next to the world's strongest magnet? Touchdown!
(Length: 1 minute, 59 seconds)

How Atmospheric Pressure Affects Objects

Watch how changing the atmospheric pressure around objects can change their size.
(Length: 1 minute, 41 seconds)

Junkyard Magnet

Watch a junkyard magnet squash water jugs and melons using the power of electromagnets.
(Length: 2 minutes, 40 seconds)

Levitation Melting

Watch this metal sphere levitate in the bore of an induction coil and learn why it happens.
(Length: 1 minute, 29 seconds)

Maglev Trains

This model train demonstrates magnetic levitation, the Meissner Effect and magnetic flux trapping.
(Length: 2 minutes, 18 seconds)

Make a Compass Demonstration

Learn how to make a simple compass with materials you have at home.
(Length: 1 minute, 14 seconds)

Make an Electromagnet

Learn how to make a simple electromagnet right at home.
(Length: 1 minute, 35 seconds)

Potato Launcher

An up-close view of a favorite Open House demo, carbo-loaded with information on how the pneumatic potato launcher works.
(Length: 1 minute, 59 seconds)

Seeing Magnetic Field Lines

Compasses and special metal filings help you "see" the invisible force of magnetic fields.
(Length: 1 minutes, 43 seconds)

Shrinking Quarter Machine

A MagLab physicist and engineer pair up to demonstrate the lab's famous Quarter Shrinking Machine, a loud, stinky illustration of electrodynamics, circuits, Lenz’s Law and Lorenz forces. (Length: 7 minutes, 56 seconds)

Tesla Coils

What's behind these cool purple sparks? Neat science about resonance and transformers.
(Length: 3 minutes, 28 seconds)

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Magnet Academy is a free resource on magnetism & electricity brought to you by the Center for Integrating Research + Learning at the National High Magnetic Field Laboratory.