Topic: magnetic field

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The Meissner Effect: How to levitate a neodymium magnet

A neodymium magnet cube sits on a surface of yttrium barium copper oxide—YBa2Cu3O7, nicknamed YBCO—inside the bottom of a styrofoam cup. A small amount of liquid nitrogen is poured slowly over the YBCO. As it cools, t...

How NASA’s Parker Solar Probe Will Touch the Sun

In the early hours of August 12, 2018, NASA's Parker Solar Probe launched from Florida's Cape Canaveral Air Force Station, beginning a historic seven-year journey to 'touch the sun.' From The New York Times: The P...

3D-printed structures that shape-shift with magnetic microparticles

These small, soft 3D-printed structures can shape-shift—expand, contract, wrinkle up, roll, and move about—thanks to the magnetic microparticles within their silicone-based rubber bodies. This is the latest iteration ...

These tiny origami robot transformers use magnetic fields to walk, roll, sail, and glide

This small cube can transform into a walking, wheeling, boating, or gliding bot with the help of origami exoskeletons that fold around it to create a new form and function. These are tiny shape-shifting robots from re...

How to collect black sand with a magnet

If you're ever at a beach with some black sand in the mix, run a magnet through the sand to see if the black sand sticks. Exploratorium educator Ken Finn demonstrates this experiment with a magnet and a plastic cup at...

Neodymium magnet collisions filmed in slow motion

What happens when Speks-style magnet balls, magnetic cubes, and plastic-covered disc magnets collide with large and powerful neodymium magnets? Watch them fly through the air, crash, and stick together in this slow-mo...

The Aurora Named STEVE

For the first time, scientists have ground and satellite views of STEVE (short for Strong Thermal Emission Velocity Enhancement), a thin purple ribbon of light. Scientists have now learned, despite its ordinary name, ...

Where does Space begin?

How far away is Space from where you are at this moment? How much closer is it when you're flying in a plane? And how close is the International Space Station to Earth if we can spot it in the sky? Travel up, up, u...

Smashing stuff with neodymium magnets

What happens to a cluster of grapes when it's in between two large, very strong and potentially dangerous neodymium magnets as they collide? Science presenter Kevin Delaney and his team demonstrate the power of these ...

Magnetic fields make this tiny robot roll, jump, swim, and wriggle

This very small elastic strip is a robot that can walk, roll, jump, swim, and wriggle like a worm. Infused with magnetic particles, it responds to the strength and direction of magnetic fields surrounding it. As scien...

The surprising interactions between copper and neodymium magnets

Experiments with super strong neodymium magnets and copper! These surprising demonstrations of magnetic damping go beyond the magnet through a copper tube demo that we've previously seen. Watch as Night Hawk in Light ...

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, su...

DIY Ferrocell: How to make a magnetic field viewer

By squishing a mix of mineral oil and ferrofluid between two sheets of glass, diligently squeezing out the air bubbles, sealing the edges, and then lighting it with a LED strip, Magnetic Games has created a DIY magnet...

Electromagnetic Levitation Quadcopter

On a visit to Hyperloop One, a Los Angeles-based team working to create a near-vacuum tube-based transportation system, Veratasium's Derek Muller got to check out this Electromagnetic Levitation Quadcopter demo. In th...

What can you do with a large neodymium magnet?

Neodymium magnets are really strong. The larger they get, the more careful you need to be to avoid being pinched or struck from the force of their attraction. This video from Magnetic Games cautiously explores what ca...

Humpback whales swim under the northern lights

Off the coast of Kvaløya island in Tromsø, humpback whales swim beneath the northern lights. The brief scene was captured by Norwegian photographer Harald Albrigtsen for Norwegian public television (NRK). Cue the auro...

Understanding the Magnetic Sun – NASA Goddard

This dynamic computer model of our sun reveals the behavior of its invisible magnetic structure. The pink and green indicate open magnetic field lines that reach out into space, while the "closed" white lines loop bac...

A levitating top in a foggy soap bubble

A spinning Levitron Cherrywood top, thanks to repelling magnetic force in the base and the top's gyroscopic stability, hovers over a soap bubble full of glycerin fog, all within a larger bubble that is also filled wit...

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