A mysterious sphere has appeared on a beach in Japan — and no one seems to know what it is, or how it got there. The large metal ball recently appeared on Enshu Beach in the coastal city of ...

The device is instantly recognizable thanks to its large, polished metal sphere that often causes hair to stand on end when a person touches it. The Van de Graaff generator works by transferring ...

Combs made from fine metal mesh placed close to the belt at the top and bottom allow the Van de Graaff to build up a static charge in the sphere. Incidentally, it sounds like sourcing the large ...

In the Spring of 1974, a large brush fire swept across the property ... Lying in the smoldering grass, was a highly polished, metal sphere. This became known as the Betz sphere or the Betz orb.