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8 Cards in this Set
- Front
- Back
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- invasion and migration - rise in population - wars are prevalent in this era. |
Medieval or Middle Ages |
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he invented the printing press. |
Johann Guttenburg |
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address the need for publishing books that would spread the information to many people in a faster rate. |
Printing Press |
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device that can magnify things that are invisible to the eye. |
Microscope |
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developed the first compound microscope, guided by the principles used in making eyeglasses invented in the earlier years. |
Zacharias Janssen |
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an optical instrument that helps in the observation of remote objects. |
Telescope |
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invented the telescope. |
Galileo Galilee |
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for offensive and defensive materials. |
War Weapons |
