Get your uranium here!
You can get anything online these days, even radioactive isotopes.
Not having any current need for uranium ore but having an inexplicable fascination with magnets, I headed over to their magnets page instead. Now I love strong magnets, but these might be too much even for me:
Beware - you must think ahead when moving these magnets.
If carrying one into another room, carefully plan the route you will be taking. Computers & monitors will be affected in an entire room. Loose metallic objects and other magnets may become airborne and fly considerable distances - and at great speed - to attach themselves to this magnet. If you get caught in between the two, you can get injured.
And it gets worse:
Take Note: Two Super magnets can very easily get out of control and break fingers and even your arm if opposing poles fly at each other.
How do they ship these things??
No, just no.
A very good question. But now I want to see one. Just not in my house.
I’ve heard of neodymium before, but I’m disappointed they didn’t say how many Tesla their fields are. I did some experiments last year with electromagnets that could stay comfortably at at least 8 Tesla (higher with the cooling system on), which was high enough that if you were holding something metallic in your hand you could feel yourself being pulled to it from about six inches away. These were big units (bigger than a microwave but smaller than an oven) but the computer we used to record the data was only about a meter away, so I doubt these things could be too dangerous to have around the house. I’m very interested in the fluid at the bottom of the page though! And, you might be able to levitate a small sphere above the hollow cylinders, which would be cool. Magnetic fields have always been my favourite of the fields.
Oh, I should add that the magnets I’m talking about where not mobile… so, like it says on that page, I bet if you let two cubes go flying together with your hand in between you’ll end up being sorry.