Answer:
The space suit
Though the first man stepped on the moon in 1969, in the 1930s astronomers and physicists were already planning for the voyage to outer space. Emilio Herrera Linares, a Spanish military colonel, is credited with being the first to design a pressurised suit which was used in a high-altitude balloon flight in 1936.
The modern mop
While the mop isn’t the most glamorous of inventions, it certainly is one of the most useful. People had been using rags to wash floors since the 15th century but it was in the 1960s that the engineer Manuel Jalón Corominas had the idea to create a purpose-built mop with a bucket to ring the water out in.
Explanation:
that's just a few ^_^!!!
Answer:
The Awnser is: The African Slave Trade.
I hope this helps you out :)
C. A depression in the ground caused by the removal of soil or bedrock.
They created tons of things, the one you are asking for would be the assembly line.
The United States became an "isolationist" nation because of all the funds it loaned to its European allies during World War I, not to mention all of the US lives that were lost in the war as well. This is because the US felt it was wasting time, money, and American lives on a war that did not affect them.
