The aeolipile was a hollow sphere mounted so that it could turn on a pair of hollow tubes that provided steam to the sphere from a cauldron. The steam escaped from the sphere from one or more bent tubes projecting from its equator, causing the sphere to revolve.
By: Tech Planet Title: This Engine Could Have CHANGED Our Entire HISTORY Sourced From: www.youtube.com/watch?v=hw-BagZk-HA