Since in order for the gun to be effective it needed to be behind the propeller, without the interrupter gear, bullets would have destroyed the propeller causing the plane to crash.
No. The washing machine was not invented in 1797. In 1797 Washington was still president and it was a short 20 years since the revolution . The washing machine wasn't invented until 1851 just before the civil war.
one of the years before 2013
No he did not invent the washing machine because the washing machine was actually invented 26 years before he was born!
Why? Because no-one invented it before?!By the way, Willy Mueller in Switzerland also invented it at the same time.
pascaline & difference engine cotton gin & stone tools
In today's society it is picked by a machine in the fields. Back before the machine was invented slaves or others did it by hand and picked out the seeds. Now the machine sorts and picks out the seeds.
First, "Fax" is simply military shorthand for, "Facsimile (fack-simm-uh-lee). The Scot, Alexander Bain, invented the facsimile machine in the year 1843 using the technology of Samuel F.B. Morse, who had invented the telegraph machine a few years earlier. The first fax machine was created by Alexander Bain, an inventor from Scotland. He received a patent for his invention in 1843, before the telephone was invented. Though this was more than 100 years before it became a part of every day life.
Examples of embroidery have been found in ancient sites long before recorded history from many different cultures. There is no reason to believe it was invented by any specific person.
In 1500's, Italian inventor Leonardo Da Vinci made drawings of a flying machine.
Prior to the invention of the sewing machine, all sewing - making and mending - would have been done by hand using hand sewing needles.
Are you talking about the green big-wheel type kid's toy? If that's what you are asking about, I know that it was before 1975.
by mail and telegraph. thats right i know stuff