Demonstrating Magnetic Levitation Prac (1 Viewer)

[Shire-miss]

Can anyone give me info on this prac from Ideas to Implementation in the superconduction part?
'Perform an investigation to demonstrate magnetic levitation' or its something along those lines.....
How are we supposed to demonstrate it???

 

[ReaveR]

We got a scientist from CSIRO to come in and do it for us...I've got pictures somewhere if you want.

Basically just make the turn the compound into a superconductor by lowering it below supercritical temperature and put a small magnet on top. It'll float.

 

[littlemic21]

ive used the one in the jacaranda book...
pouring liquid nitogen into a styrofoam cup, place superconductor disc, levitate rare-earth magnet.

 

[jm1234567890]

lol, our school was too poor to do this

 

[Rahul]

yep we did the the liquid nitro+magnet one.

then smashed up fruit and other stuff with the rest of the nitro

 

[Shoey]

Our physics teacher did it himself.

Then we played with the liquid nitrogen. Looks really cool when tiny clumps of nitrogen goes running off the desk really quickly, but never quite reaches the floor.

 

[Dash]

Yeh... our teacher is an idiot...

He froze eggs and smashed them! It went all over the place!

Stupid ass! :rofl:

 

[ND]

I don't think you have to use a superconductor, it only says to demonstrate megnetic levitiation. You can just get a glass tube, drop a bar magnet in there, then drop another bar magnet down with the same poles togther.

 

[+:: $i[Q]u3 ::+]

we did it.. but i couldn't really see what was happening... but i know that there was liquid nitro involved.

 

[jm1234567890]

Originally posted by ND
I don't think you have to use a superconductor, it only says to demonstrate megnetic levitiation. You can just get a glass tube, drop a bar magnet in there, then drop another bar magnet down with the same poles togther.

lol, we did a similar thing, but we didn't even have a glass tube
the teacher had to improvise

However, this doesn't really show the messiner effect

 

[ND]

Yeh but the dotpoint doesn't say anything about the meissner effect.

 

[ghoolz]

Our teacher tried to use a LARGE measuring cylinda with two rare earth magnets or it could have been that with onenormal bar magnet...anyway there was such a strong attraction forces on the opposite poles that the magnet flipped inside the tube smashing one of the big measuring cylinda's everywhere.

We also have a small thingy that has four small round dics type magnets with a hole drilled in each centre, they are on piece of wire that has been bent to form an arch and they repel off each other. Thats the way we have done it.

We did have some liquid nitrogen but the junior years used it all and we didn't have any superconducting material.

Off the school now for a study session just on all the pracs ... the teacher should be setting them up know.

 

[Takuya]

lol...

tube + 2 magnets = levitation.

That's the practical. Doubt there will be any question on this.

 

[Lexicographer]

Takuya, you have questions waiting for you in Japanese

 

[tegs]

HA, like our school could afford to do any of those superconductivity tests!
We are so poor, they said they didn't have money to buy new basketballs for the 1sts.
I wish I was in sydney...