Simple twisted copper ring - DIY wire jewelry 58 : <a href=" You can twist it in the same direction or in the opposite direction, wear 1 ring or 2 rings as you like. Mixing two colors of wire to ...
A new trick for illuminating the internal ordering within a special type of magnet could help engineers build better ...
Every few hundred thousand years, Earth’s magnetic poles flip, turning north into south and south into north. These ...