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The compass was made in 2nd Centry B.C.. It was made with lode stone and naturally magnetic.
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In 3000 B.C. in egypt paper was made by sheets of paperus pity soaked in water, pressed together and dried.
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The led pencil was invented in 1564. [ It contained no lead] It was not known at the time that graphite consisted of carbon was not led.
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The frige was invented in 1748 by William Cullen. Cullen did not apply this discovery.
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The first incandesnt light bulb was invented in 1800 by Humbry Davy. He experimented with electricity.
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Kindergarden was made by a german educator who opened the first kindergarden in 1837. Kindergarden has included music and playing. Also training for the child.
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The eletric iron was invented in 1882 by Henry W. Seely . His iron weighed 15 pounds.
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James Naismith invented basketball in 1891. He invented basketball because he wanted to have a sport that could be played in the winter. He used a soccer ball for the ball and peach baskets for the goals.
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The airplane was made by the Weight Brothers in 1903 . It flew for 12 seconds it flew 37 meters.The flight took place in NC.
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The radar was invented in 1935 by Sir Robert Alexander Wattson.
Watson developed the radar to help track storms. -
The smoke alarm was first designed by BRK . These inexpensive battery using alarms have been saving lives for years.
