18+ Galileo Galilei Telescope Discoveries Gif. The basic tool that galileo used was a crude refracting telescope. These included artillery balls and tripoli powder.

Discoveries Using Telescope Galileogalilei
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The discovery of these moons was not supported by the scientific principles of the time and galileo had. Galileo galilei did not invent the telescope but was the first to use it systematically to observe celestial objects and record his discoveries. Centuries later, galileo's is still held in such high esteem.

In 1610, italian astronomer galileo galilei looked up at the heavens using a telescope of his making.

New york — in 1610, galileo galilei peered through his telescope and discovered four moons orbiting around jupiter, a breakthrough that helped confirm the heliocentric theory that the earth revolves. And what he saw would forever revolutionize the field of astronomy, our understanding of the universe, and our place in it. He was born in pisa on february 15, 1564. His initial version only magnified 8x but was soon refined to the 20x magnification he used.