American Inventors by https://padlet.com/dexin925/ybiomu7sliy0 Made with a bold sensibility en-us 2017-09-11 19:27:56 UTC 2017-09-15 04:24:29 UTC hello@padlet.com Jan Matzeleger dexin925 https://padlet.com/dexin925/ybiomu7sliy0/wish/186546535 b.He invented the shoe-lasting machine. It increased the availability of the shoes and decrease the price of footwear.
c.The result was the employment of more unskillful workers and proliferation of low-cost,high-quality footwear for people around the world.
d.
e.https://www.biography.com/people/jan-matzeliger-21317107]]> 2017-09-11 19:34:20 UTC https://padlet.com/dexin925/ybiomu7sliy0/wish/186546535 Robert Fulton dexin925 https://padlet.com/dexin925/ybiomu7sliy0/wish/187278572 b.He invented Steamboat.steamboat is used to refer to smaller, insular, steam-powered boats working on lakes and rivers, particularly riverboats.
c.As using steam became more reliable, steam power became applied to larger, ocean-going vessels.
d.
e.https://en.wikipedia.org/wiki/Robert_Fulton




]]> 2017-09-13 17:19:48 UTC https://padlet.com/dexin925/ybiomu7sliy0/wish/187278572 Samuel Morse dexin925 https://padlet.com/dexin925/ybiomu7sliy0/wish/187289353 b.Telegraph. The telegraph revolutionized long-distance communication.
c. Telegraph lines soon extended westward, and within Morse's own lifetime they connected the continents of Europe and America.
d.
e.https://en.wikipedia.org/wiki/Samuel_Morse]]> 2017-09-13 17:41:34 UTC https://padlet.com/dexin925/ybiomu7sliy0/wish/187289353 Thomas Edison dexin925 https://padlet.com/dexin925/ybiomu7sliy0/wish/187296941 b.He invented the light bulb.The incandescent light bulb turns electricity into light by sending the electric current through a thin wire called a filament.
c.This provides an accurate reading on how long the bulb will last under normal conditions. Testing is performed at all manufacturing plants as well as at some independent testing facilities. The average life of the majority of household light bulbs is 750 to 1000 hours, depending on wattage.
d.

e.https://simple.wikipedia.org/wiki/Light_bulb
]]> 2017-09-13 17:56:19 UTC https://padlet.com/dexin925/ybiomu7sliy0/wish/187296941 Benjamin Franklin dexin925 https://padlet.com/dexin925/ybiomu7sliy0/wish/187806556 b.He invented the lightning rod.  A metal rod mounted on a structure and intended to protect the structure from a lightning strike.
c.The lightning-rod system is an excellent conductor and thus allows the current to flow to ground without causing any heat damage.
d.
e.https://www.biography.com/people/benjamin-franklin-9301234]]> 2017-09-15 03:02:40 UTC https://padlet.com/dexin925/ybiomu7sliy0/wish/187806556 Bushnell dexin925 https://padlet.com/dexin925/ybiomu7sliy0/wish/187807850 b. He invented the submarine.It is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability.
c.In the military submarines are used for protecting aircraft carriers on the surface of the water, attacking other submarines and watercraft, as supply vessels for other subs, launching torpedoes and missiles at land and sea targets, and for providing surveillance and protection from would-be attackers.
d.
e.https://en.wikipedia.org/wiki/Turtle_(submersible)]]> 2017-09-15 03:14:18 UTC https://padlet.com/dexin925/ybiomu7sliy0/wish/187807850 John Fitch dexin925 https://padlet.com/dexin925/ybiomu7sliy0/wish/187810515 b.He invented steamboat.A steamboat is a boat that is propelled primarily by steam power, typically driving propellers or paddlewheels.
c.This was a deep-draft vessel propelled by steam engines that drove paddle wheels or propellers.
d.
]]> 2017-09-15 03:40:27 UTC https://padlet.com/dexin925/ybiomu7sliy0/wish/187810515 Eli Whitney dexin925 https://padlet.com/dexin925/ybiomu7sliy0/wish/187814891 b.He invented the cotton gin.A cotton gin is a machine that quickly and easily separates cotton fibers from their seeds, allowing for much greater productivity than manual cotton separation
c.This machine was used for long-staple cotton, whereas in America, they grew short-staple cotton. The cottonseed was being removed by hand, the work generally done by slaves. Eli Whitney was the first to make a cotton gin for short-staple cotton.
d.
e.score.rims.k12.ca.us/score_lessons/cotton_gin/]]> 2017-09-15 04:15:23 UTC https://padlet.com/dexin925/ybiomu7sliy0/wish/187814891