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 idea of steam engine was introduced in the first century by a Greek mathematician known as âHero of Alexandriaâ. Elementary steam engines were developed from sixteenth century onwards. Thomas Savery developed the first water pump powered by steam and this is considered as the first steam engine of the modern form.