Answer:
British mathematician William Bourne made some of the earliest known plans for a submarine around 1578, but the world’s first working prototype was built in the 17th century by Cornelius Drebbel, a Dutch polymath and inventor in the employ of the British King James I. Drebbel’s sub was probably a modified rowboat coated in greased leather and manned by a team of oarsmen. Sometime around 1620, he used it to dive 15 feet beneath the River Thames during a demonstration witnessed by King James and thousands of astonished Londoners. Unfortunately, none of Drebbel’s plans or engineering drawings has survived to today, so historians can only guess about how his “diving boat” actually operated. Some accounts say it submerged via a collection of bladders or wooden ballast tanks, while others suggest that a sloping bow and a system of weights were used to propel the boat underwater when it was rowed at full speed.
Explanation:
Answer:
hand tools I think I don't know but that gose more with it I did some research and I think it hand tools
Answer: true
Explanation: stalin did refures .
Answer:
it is both!!
Explanation: Actually it depends on the way you use it..
The actions of the Federal Society of Journeymen
Cordwainers were the impetus for the establishment of the conspiracy doctrine.
<span>Federal Society of Journeymen Cordwainers was organized by
shoemakers in 1794 in Philadelphia. This was organized as a struggle to safe
firm income or wages. The name derived from the cordovan leather in which they
are working</span>
