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Electrical Inventions. By: Rebekah Douglas. Calculator. It was invented by Blaise Pascal. It was worked on in the years of 1642 through 1645. A calculator is a small device that calculates perfect answers requiring manual action for each problem . . Sewing Machines.

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electrical inventions

Electrical Inventions

By: Rebekah Douglas

calculator
Calculator
  • It was invented by Blaise Pascal.
  • It was worked on in the years of 1642 through 1645.
  • A calculator is a small device that calculates perfect answers requiring manual action for each problem.

.

sewing machines
Sewing Machines
  • Sewing machines were invented in 1845.
  • Sewing machines can be used for fixing clothes or making them.
  • Isaac Singer and Elais Hower were the inventers.
movie projectors
Movie Projectors
  • Movie Projectors (or Early Film Devices) were invented in the 1890s.
  • Early film devices were created by inventors all over the world.
  • Thomas Edison was the inventor.
  • It was used with film or to make a movies.
typewriters
Typewriters
  • Typewriters were used for writing in characters similar to those produced by printers.
  • It was invented by Christopher Lather Sholes.
  • It was patent on June 23, 1868.
video cassette
Video Cassette
  • A video cassette is a cassette enclosing a length of a tape for a video recording .
  • JVS invented the recorder.
  • It was first used in 1951.
slide7
iPad
  • The idea started on April 8,2008.
  • The inventor was Steve Jobs, CEO of Apple Inc.
  • The iPad can be used for apps, internet, books etc.
how electricity is important to me
How Electricity Is Important to Me
  • Electricity is important to me because without it most people would have to do things the old fashioned way and kids aren't used to that.
  • Electricity is important because I use it everyday. Classrooms could not have light without electricity. So many things use electricity it would be hard to let them go.
  • Electricity is used for so many things and I am very grateful.
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