Springoo

What if you take the following physics video and show it to a bunch of random smart (and not so smart) people ? How would they explain it?

1. The bottom piece is cooled down so it gets superconductive.

The one on the top is a magnet. Superconductor cannot be penetrated by magnetic fields. So the magnet kind of floats on his field At least that is how I think it is.

2. Back in 89 we made one of these in HS.

If I remember correctly it was a ceramic composite that we had to bake at high temps for 8hrs in a crappy oven whose temp we had to manually adjust every 5 minutes. Very cool, but we had more fun playing with the liquid nitrogen. Hopefully the cutting edge scientists have superconductivity working at close to room temp.
liquid nitrogen, available at your friendly neighborhood petstore…

3. I think the black object is made of superconducting material.

The disk is a magnet. When liquid Nitrogen (B.P.-196°C) is poured the temperature falls and falls enough for the black object to behave like a superconductor. Now, when the magnet is moved causing eddy currents due to induction then they don’t die down quickly and the magnetic field produced by them opposes the magnet (disc) by Lenz’s law and the magnet hangs.

4. how a train floats. About mag lev trains

You take two magnets and try to force both the south poles, or north poles, together and what do you get? They repel each other. Now do that with two magnets the size of your kitchen table, and you can stand on the top one without them touching is it magic? No all you’ve done is multiply the force. Now use materials that have a stronger magnetic force and you can hold up a train. That takes care of how the train floats.

5. The black object will be Niobium Tin.

The silver bit is a magnet. At first the magnet is NOT attracted to the stuff.
Pour in the liquid nitrogen, cools the Niobium Tin so it becomes a Superconductor.
As you apply the magnet, it induces a current that will NOT stop it becomes a powerful magnet. It will continue to do so for while ever the stuff is in the liquid nitrogen. As it warms the magnetic force reduces, as the current reduces - eventually stopping everything returns to normal

6. The hydrogen bonds of the metal was rather loosened by the liquid nitrogen

Causing the sumatomic bonds between the metal and the black conductor to grow stronger. This produces what scientists call the anomaligago effect which means that the elctrons and the protns of each material has diminished as the surrounding pressure within the room increases. This makes it seem that the metal is “hovering” above the black conductor when, in fact, it really doesn’t. It’s all an illusion.

7. The black square is most likely Yttrium Oxide, which is a superconductor.

It has virtually no electrical resistance at low temperature. The silver disk is a magnet. The magnet induces a like magnetic field in the Y2O3 which then repels it. When he removes it from the liquid Nitrogen it warms up and loses it’s superconductivity and the magnet falls. This is not fake at all, I’ve seen it in person. “Simple” superconducting physics.

8 This IS how it works.

The Black/Green thing is a superconductor of some sort. The liquid is liquid Nitrogen (-196 degrees c). At this temperature the superconductor repels magnetic fields, thus making the magnet levitate. This theory has been used to propose maglev trains… if they could make a room temperature superconductor.

9. THIS IS A HOAX!!

CANT U SEE ITS FAKE?? I DONT BELIEVE IN THIS.
10. I’m floored when I see people confidently declare something so well understood to be fake.

Superconductors (which only work at cool temperatures) levitate magnets by basically creating a “mirror image” whatever magnetic field passes through them. Though I think if you pass too much field through them they lose the superconducting property. This is called the Meissner effect. Pretty cool, eh?

Where do you buy nitrogen?