Question

4. When was the Steam Engine invented?​

Answer 1

Answer:

1698 Thomas Savery patented a pump with hand-operated valves to raise water from mines by suction produced by condensing steam. In about 1712 another Englishman, Thomas Newcomen, developed a more efficient steam engine with a piston separating the condensing steam from the water.

Answer 2

The steam engine was invented in 1698