Fun with fidget spinners and super strong magnets!

By: iBuyNewStuff

Originally published on May 2, 2017

In this video I muck around with some cool fidget spinners and super strong (but small) neodymium magnets! I show off the fidget spinners, and their variety of colours. You can use the magnets to build your own custom big fidget spinner.

Fidget Spinner:
Premium Fidget Spinner:
Tungsten weight block:
(Affiliate links)

Watch this space, because soon i’ll be releasing a video about how to measure the speed of a fidget spinner!

Contact me at


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Exploding soda cans with electromagnets in SLOW MOTION ft Joe Hanson


By: Physics Girl

Originally published on Jun 14, 2016

Making Music with a Tesla Coil:

Watch a soda can rip itself apart in a fiery explosion at 11,000fps with a Phantom high speed camera. Running a current through a coil, produces an electromagnet. Turn up the voltage in this experiment, and make that current strong enough, and your electromagnet can rip a soda can in half. Or rather, make the can rip itself in half! This video was filmed at Arc Attack Studios in Austin, TX with Joe Hanson, Joe DiPrima, John DiPrima and Darren Dyk.

This video is sponsored by Audible –

360 Tesla Coil Video:
It’s Okay to Be Smart Channel:


Beyond Slow Motion:…

Use Induction to make your own DIY Electric Train:…

Help us translate our videos!…

Creator: Dianna Cowern
Editor: Jabril Ashe
Animator: Kyle Norby

How the quarter shrinking demo works:
A coil of wire is wrapped around the quarter so it follows the edge of the quarter. Then a capacitor – kind of like a battery – is charged until it’s at a VERY high-voltage, which is then discharged through the wire. The current produced is high enough to make you go bye bye. The coil becomes an electromagnet – because current —≥ magnetic field But this magnetic field creates another current or set of currents in the quarter – because changing magnetic field —≥ current in a circuit. But moving charges, i.e. currents, in a magnetic field will feel a force. For the quarter, the charges moving in the edge are feeling a force inward. The current was SO strong that the quarter PULLED ITSELF inward! This is madness.

Music: APM and YouTube
“On the Bach”
“Built Together Marimba“
“The Bumbling Professor“
“Built Together Soundscape“

Provided by ArcAttack:
“1812 Overture”

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AMAZING! Ferrofluid + Glow Sticks


By: Physics Girl

Originally published on Oct 20, 2015

Ferrofluid is a liquid that displays unusual properties in the presence of a magnetic field. Watch what happens when we mix ferrofluid with the liquid from a glow stick!

Host/Writer: Dianna Cowern

Physics Girl has joined PBS Digital Studios!…

Photographer Fabian Oefner:…
Magnetite Image: “Archaeodontosaurus,” Wikipedia;…

More Information:……

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World’s Easiest DIY Electric Train


By: Physics Girl

Originally published on Jun 7, 2016

How do you take copper wire, a battery and magnets and make electric train? With science! This super simple DIY physics demo uses electromagnetic induction to propel a train made of magnets and batteries.

Inspiring video:…
Ferrofluid and glowsticks:…
7 surface tension experiments:…

Creator: Dianna Cowern
Animator: Kyle Norby

Thanks to Dan Walsh and Kyle Kitzmiller.

Music: APM and YouTube

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Hendo HoverBoard



Hendo is introducing the world’s first REAL hoverboard and hover developer kit. We are putting hover technology in YOUR hands.

Here is the link to the project webpage in

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