FUN WITH SUPERCONDUCTORS!
In an effort to expand the product line on our Forcefield website, we located a supply of superconducting kits. Amazingly, we found a small manufacturer of superconducting pellets right here in town. We now sell this kit on the FORCEFIELD web site. They include 1 superconducting disc, about 1" diameter, an excellent instruction manual, a convenient styrofoam container(good for holding liquid nitrogen during the demonstration), 1 pair of plastic tweezers, and one 3/16" NdFeB magnet. Click here to purchase one of these kits from FORCEFIELD. Mention that you saw this page and we will throw in a few extra magnets!
In order to make this work you'll need to get your own liquid Nitrogen.
Of course, even high temperature superconductors need to be very cold. Liquid Nitrogen is required to chill the supeconductor to its critical tempurature. Surprisingly, liquid Nitrogen is very easy to come by. It is has many common applications, and is widely available and inexpensive. Any supply shop that sells CO2 and welding gasses should have it. Although special containers are made for the safe storage/shipment of liquid Nitrogen, many shops will be more than happy to fill your stainless steel thermos bottle for a couple bucks. It's very important, if you acquire some in a thermos bottle, or other container that you understand the dangers and safe handling procedures. You do not want liquid Nitrogen to come into contact with your body! In our thermos bottles, the liquid Nitrogen lasted over 30 hours before evaporating!
Here you can see the liquid Nitrogen being poured on the superconducting pellet. As the pellet cools, the Nitrogen will boil violently. One needs to be very careful here.
Once cold...amazing things can happen!
Item #24
might be useful for such experiments.
Also check out our DIAMAGNETIC LEVITATION EXPERIMENTS
GET
YOUR SUPERCONDUCTOR KIT HERE!
Click here to view other demonstration images!