Answer: delivering mail and packages
Explanation:
Answer:After the stock market crash, President Hoover sought to prevent panic from spreading throughout the economy. In November, he summoned business leaders to the White House and secured promises from them to maintain wages.
Explanation: i luv u
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To allow the force of expanding gases from the gunpowder to act for a longer time
Answer: James Watt / Thomas Newcomen
Explanation:
- The two names that are most responsible for the use of steam in the industry. The original steam engine was modified in 1712 but was later refined by James Watt, who was credited with the invention. The invention was a revolution in traffic, and a steam engine, except on land, was also used to launch ships (steamboat).
- Mentioned in 1712, Thomas Newcomen is the person who was responsible for the construction of the steam-pumped atmospheric pump. His invention worked for much of the eighteenth century but was not economical. Thanks to the technical refinement by James Watts, a revolution is about to occur in the industry.
