Choose the right soil. Mulberry trees will grow on many types of soil as long as a good drainage system is provided. Ensure they are not in an area where flooding is common as they do not tolerate being engulfed in water. When possible, well-drained, deep soils are preferred. Opt for slightly acidic soil with a pH of 5.5 to 6.5.
Ancient steam turbines. Early in the first century A.D., a Greek inventor named Hero of Alexandria designed the world's first aeolipile, or primitive steam turbine. Heron's aeolipile consisted of a hollow sphere, mounted on a pair of tubes.
The first crude steam powered machine was built by Thomas Savery, of England, in 1698. Savery built his machine to help pump water out of coal mines. This machine was so simple that it had no moving parts. It also used up lots and lots of coal just to pump a small quantity of water.he next stage in the history of the steam engine was a result of the work of Thomas Newcomen, also of England. Newcomen knew that there must be a way of improvingon Savery's inefficient steam powered pump. Newcomen built a machine where the steam actually pushed a movable piston in one direction.