If this is true, then how can I make one? Or where, on the web, would be good to find info on magnets?
a copper disc works also, When spinning fast the magnetic field is reflected back and the magnet will float off.
I wear sweat shirt and pants to sleep, socks also. Put the blanket and sheet over you and not the window or door. They don't feel the cold.
That sheet of aluminum would have to be cooled down to almost absolute zero.the average garage mechanic or basement bomber would not have much of a chance. I believe your reference is in regards to Bose-Einstein condensates which do have some rather unique properties as far as magnetism and other fundamental forces are concerned.
If you spin a sheet of conducting material like aluminium near a magnet, an electric current starts to flow in the sheet. This produces a magnetic field which drags the magnet round in the same direction. This is how a car speedometer works. A cable is fixed to an axle. As the axle rotates, the cable rotates with it.The other end of the cable goes into the back of the speedometer, and a magnet is fixed to the cable and rotates with it.In front of the magnet is an aluminium disc.The rotating magnet tries to drag the disc round with it, but a spiral spring restrains the disc. The faster the magnet rotates, the bigger the angle the disc is twisted through. The speedo needle is fixed to the disc, so the faster the car wheels rotate, the more the needle is deflected, and you've got a speed indicator.
It's very important to keep your feet warm. Stick your hands under your armpits because that is one of the warmest parts of your body. Slide the blanket over your nose and breath deeply from your nose as this will warm your body immediately. Do this for a little bit and this will get your shivers and jitters away.
