Tesla Sphere

Tesla spheres. A recent introduction to the Astral Realms, these energy spheres were invented by the great Nikola Tesla soon after the arrival of his soul in the Astral.

A major engineering breakthrough, they more efficiently convert Astral energy bound up in the clouds of the Astral Sea to power floatstones.

By using a secret method to convert Astral energy into electrical current, these spheres then power the dynamos that superheat floatstones to generate lift for skyships.

Prior to the creation of Tesla spheres, ships were often forced to stay close to the larger floating islands for fear of losing so much lift they would not be able to return home.