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cotton gin
Eli Whitney went to college at yale and the cotton gin was invented in North Carolina. made by Eli Whitney the cotton gin is used for taking the seeds out of the cotton this itam has changed the world by letting us make clothes faster and easyer. -
typewritter
The typewritter had 52 original disigns.The word TYPEWRITTER is the longest word on one row of letters. made by Pellegrino Turri the typewritter is a divice that types letters on a piece of paper when that letter is hit this itam changed the world by letting news get out there fast than hand writting something. -
bifocals
The first magnifing lenses were made around 300BC.Pope Leo X depicted Wearing glasses. made by Benjamin Franklin The bifocals are magnifing lenses for the eye this itam has changed the world by letting peaple with bad site see better so they can tell whats going on in the world. -
sewing machine
In the earl 1800 hundreds clothes were made by hand.Elias Howe died in 1867. made by Elias Howe The sewing machine is a divice that strands fabrics together by a string this itam has changed the world by letting us make clothes faster and easyer than hand sewing. -
machanical reaper
The machanical reaper was made to cut small grain crops.Cyrus McComick sold 54,841 machines. made by Cyrus McComick the machanical reaper is a horse drawn divice that cuts small grain and put into a basket this itam changed the world by lettin us pick grain up to five times faster than hand picking this let us make food faster this is important becuase high damand. -
morse code
The morse code was made for making distrest call.It was used by making series of taps. made by Samual Morse The morse code is a divice that was used in the late 1800 for makeing distress calls.This has changed the world becuase it was the begining of the telephone wich we all use today. -
Telephone
Hienz ketchup was invented the same year as the telephone.Alexander died in 1922. made by Alexander Graham Bell The telephone is a divice that lets us make distant conversations.The telephone has changed the world by letting us talk to peaple without meeting face to face or by hand wrighting a letter. -
airconditioner
The first airconditioner was used in a news paper factory to keep humidity low. Before air conditioner factorys quit working in the summer.
made by Willis Carrier
The air conditioner is a divice that hydrats and cools the air.The air conditioner changed the world by letting us work longer and get away from the heat on a hot day. -
Zipper
At first the zipper was used for tabaco pouches and boots.In the ninteen thirtys they started using it in clothes. made by Gideon Sundback the zipper is a divice that congons two teeth like parts togother.the zipper has changed the world by letting us use winter coats and other thing like jackets wich is inportant in the winter. -
microwave oven
The first microwave had 1600 watts.The first microwave was made on accident. made by Percy Spencer the microwave oven that heats food by using microwave radiation.this has changed the world by letting us make food way faster so the world moves faster. -
Windshield wipers
The fist windshield wipers used by hand.The first automatic windshield wipers where made by Bosch. made by Robert Kearns -
computer mouse
The fist mouse was made from wood.The computer mouse was originaly called the bug. made by Douglas Englas
