Amethyst... because it's silicon dioxide
William Gilbert is known as the father of electricity.
Because one pole of the Earth's axis of rotation (the North one) points
almost exactly toward Polaris.
If Polaris had a pimple or a bump somewhere on its edge, you'd see
the bump rotate around the whole edge, like a clock, once a day. But
the whole star appears to stay in one place, because our axis points to it.
The answer is inertia becuase it means nothing happening or is doing nothing
