Materials I used: Soft copper wire for rings with diameter 1.5-2cm 20 gauge (wire diameter 0.8mm): 22cm (9 inch) If your ring size is small, you can make 2 ring circles (using 22cm - 9 inch of wire).

1. Use a string to wrap around the base of your finger. Stretch out the length of the string over a ruler and note the length in millimeters. A sewing tape measure will also do the trick. You can use ...

When we think of powerful magnets used in particle accelerators or for NMR (nuclear magnetic resonance), we often envision bulky machines, sometimes the size of buildings. But in an extraordinary ...

Materials I used: Soft copper wire for rings with diameter 1.5cm 20 gauge (wire diameter 0.8mm): 40cm (16 inch) If you are making 1.5cm larger diameter ring, cut a longer piece of wire. Can make ...

New research shows how compact, no-insulation HTS magnets could bring 40T+ NMR spectroscopy to local university labs.