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helped people see if they had eye problems. It was illegal to use glass for lenses at the time because they wanted people to use the more valuable rock
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helps you know what direction you are going. Inventor unknown
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his let people measure time 24 hours a day. This only had problems with the seconds, instead of 10-15 min. Like before. Invented by Galileo
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before it was invented, monks had to copy everything by hand. Hand written, they took much longer, and were more expensive. Invented by Johannes Gutenberg
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Only wealthy people could afford this luxury. Invented by am english artist.
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made by godson of Queen Elisabeth. He only made one though, because he was teased by his friends
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Made by the Dutch eyeglass maker, Lenses are used for telescopes, and microscopes.
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the first was a leather covered rowboat with ores in watertight seals. 12 people could ride. By Leonardo da Vinci
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by Robert Boyle, matches put and end to uncontrolled fire.
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First used by the Chinese for fireworks and weapons.This invention greatly changed the way we fight today
