The Magnet Thread

[Xplorer877]

Most of us have other hobbies besides lasers. I love messing around with electronics especially HV stuff. Also I like to play around with magnets!

I know some of you guys have quite a collection too. What are some cool things and experiments you have done with yours. Post you pics of your collections.

-Tony

 

[Xplorer877]

On the topic of magnetic levitation I have been thinking about how to levitate a permanent magnet without power. Lets run through what we have got so far.

Diamagnetism is neat but at best you can only levitate a small magnet a small amount.
Electromagnetic levitation devices use coils and there for need power.
Gyrostabilized levitation like the Levitron requires a spinning magnet so it wont last unless it is powered somehow.
Superconductivity requires very low temperatures and liquid nitrogen is not something found in your everyday market.

So what is a cheap way to levitate something without the use of power, chemicals, or mechanism?

I thought of this last night

What if you had a parabolic dish lined with permanent magnets with lets say the - pole pointing up. Then a sphere lined magnets with - pole facing out was placed at foucs of the parabolic dish... Will it work!?!? The fact that I have never seen anything like it makes me think it wont, but I cant see why. :-/

Here is a abysmal pic of what I'm talking about.

Whatcha Think!? ;D

-Tony

 

[jamilm9]

I've always wanted to make this
http://hackedgadgets.com/2008/12/05/magnetic-levitation-light-bulb-uses-wireless-energy-transfer/

 

[pullbangdead]

I just recently got a magnetic monopole for the collection. It's pretty cool. It was kinda hard to find though, and I'm not at liberty to say where I got it.

 

[Xplorer877]

So the floating ball thing doesn't work. The spaces between the magnets attract to the others magnets. I think you would need so many magnets and they have to be perfectly aliened.

Pics!!

-Tony

 

[Jimmymcjimthejim]

I just got the NeoCube for christmas
(251 of 5mm spheres!)

 

[rkcstr]

So, in that first picture, did you have to VERY carefully place all of those things so they didn't end up in a giant clump magnets? Some of that stuff looks dangerously close to one another.

 

[iewed]

I've always wanted to collect magnets, but I've been afraid of then messing up all of my electronic stuff. If I could find a way to store the magnets safely then I'd probably start collecting them.

 

[jamilm9]

I've always wanted to collect magnets, but I've been afraid of then messing up all of my electronic stuff. If I could find a way to store the magnets safely then I'd probably start collecting them.

same

 

[rocketparrotlet]

It was because of me that powerful magnets are now banned at Explorer Middle School.

-Mark

 

[Xplorer877]

It was because of me that powerful magnets are now banned at Explorer Middle School.

-Mark

LOL! Why>

-Tony

 

[GoRdOn_B]

I bought this at the planetarium about a year ago. It's still on my desk

I think its pretty weird because while its "floating" Errr whatever, it has a natural spin if its own. The globe seems to wind... then unwind as if its on a string. I know it sounds crazy. Kinda like one of those people....."the WorlD is on A StrinG, OMGZ".
Ya, i'm not that guy. LoL.
Anyways... it does almost one full rotation. From a stop it slowly unwinds, then it gains a little momentum and slows down again. Then comes to a stop then reverses. All day long. Its weird to watch. They also had some with shuttles & planes instead of globes.

I still think its one of the coolest things.

 

[Razako]

[quote author=rocketparrotlet link=1232023670/0#9 date=1232409798]It was because of me that powerful magnets are now banned at Explorer Middle School.

-Mark

LOL! Why>

-Tony[/quote]
Magnet+CRT monitors in school=win

 

[jamilm9]

[quote author=Xplorer877 link=1232023670/0#10 date=1232414825][quote author=rocketparrotlet link=1232023670/0#9 date=1232409798]It was because of me that powerful magnets are now banned at Explorer Middle School.

-Mark

LOL! Why>

-Tony[/quote]
Magnet+CRT monitors in school=win [/quote]
when I'm at school there is a high tech April fools. They never found the magnet.

 

[iewed]

The wonders a 5mW green laser can do during school assemblies ;D

 

[diachi]

The biggest magnet I own, I also have some Nd magnets from HDDs  

EDIT: dayum, look at those CCD burns, especially the one across from the magnet