I took the "Famous Inventors Quiz"
My Score: 19 of 20 (95%) [had to Google half of these

]
seven errors or questions found
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Q: #1, Who invented the pacemaker?
A: Otis Boykin
(Most notably, his work
enabled control functions for the first successful,
implantable pacemaker.) his first patent in 1959 for a wire precision resistor.
But Canadian,
John Hopps invented the first
external cardiac pacemaker (size of a television set) in 1950.
and Swedish inventor
Rune Elmqvist developed the first
implantable pacemaker in 1958.
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Q: #8, Who Invented the Pencil?
A: Joseph Dixon
Dixon introduced graphite pencils in 1829. when the American Civil War created a demand for a dry, clean, portable writing instrument and led to the
mass production of pencils.
N. J. Conte, in 1795, successfully produced pencils, after the later famed Faber family of Nuremberg, Germany, failed to do so, by using a pulverized graphite base to create a substandard, crude prototype of a pencil
Who invented the pencil?
His real name is
Nicolas-Jacque Conte.
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Q: #9, Who invented the steam machine?
A: Matthias W. Baldwin
American manufacturer of steam locomotive. He opened his machine shop in 1825. The business grew to become Baldwin Locomotive Works, one of the most prolific and successful locomotive manufacturing firms in America.
The steam engine was not so much invented as developed. To give credit to any one person would be to steal credit away from its many rightful owners. The steam engine was developed over a period of about a hundred years by three British inventors.
The Invention of the Steam Engine
(Thomas Savery, of England, in 1698)
(Thomas Newcomen, also of England.)
( James Watt, a Scottish engineer, in 1763)
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Q: #13, Who invented the steam locomotive?
A: Peter Cooper
Tom Thumb was the first American-built steam locomotive used on a
common-carrier railroad. Designed and built by Peter Cooper in 1830,
After ten months' labor,
George Stephenson's locomotive "Blucher" was completed and tested on the Cillingwood Railway on
July 25, 1814. The track was an uphill trek of four hundred and fifty feet. George Stephenson's engine hauled eight loaded coal wagons weighing thirty tons, at about four miles an hour. This was the first steam engined powered locomotive to run on a railroad and it was the most successful working steam engine that had ever been constructed up to this period, this encouraged the inventor make further experiments. In all, Stephenson built sixteen different engines.
George Stephenson - The First Steam Locomotive Engine
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Q: #17, Who invented the sewing machine?
Should it read?:
Who invented the
first commercially successful sewing machine?
The History of the Sewing Machine - Elias Howe and Isaac Singer
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Q: #18, Who invented the submarine?
A: John Phillip Holland (Note: Philip only one "L")
was an engineer who developed the first submarine to be
formally commissioned by the U.S. Navy (though not the first American submarine, see American Civil War submarines, and the earlier Nautilus and Turtle) and the first ever Royal Navy submarine, the Holland 1.
John Philip Holland - Wikipedia, the free encyclopedia
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Q: #18, Who invented the gas mask?
A: Garrett Morgan
Morgan observed that smoke and fumes tend to rise during a fire. The device consisted of a heat-resistant hood connected to a long inlet tube that ran down to the ground to the layer of clean air beneath the smoke or gas. The end of the tube was plugged with absorbent material that was moistened before use to filter and cool air that was inhaled. A separate tube containing a valve provided an outlet for exhaled air.
Science Museum - Online Stuff - Garrett Morgan
was this the first, and is it realy a gas mask, it surely was a good invension for it's time.
Gas Masks - History
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