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Category: Histoire
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Created byYasmin El Bodn
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Mayan Astronomers - 750 BC
1.) They developed a written language of hieroglyphs and invented the mathematical concept of zero.
2.) They created the first tables of the movements of the sun, moon and planets for the use in astrology.
3.) They estimated the length of the month accurately.Plato 384-BC
1.) His idea was that the stars, sun and moon were fixed to spheres, rotating inside one another.
2.) The sun, moon and planets were on the rims of whorls between the fixed stars and the earth.
3.) He believed that the universe was made of five types of matter: earth, air, fire, water and cosmos.Babylonians 400BC
1.) They saw the development of personal horoscopes and the 12 zodiac signs
2.) They used a sexagesimal system to trace the planets transits by dividing the 360 degrees sky into 30 degrees.
3.) They believed the universe was divided into 6 levels with 3 heavens.Aristarchus of Samos 310 BC
1.) He was a Greek astronomer who maintained that earth rotates on its axis and revolves around the sun.
2.) He showed that the sun is between 18 and 20 times farther away from earth then the moon is.
3.) He presented the first known heliocentric model that placed the sun at the center of the universe with the earth revolving around the sun once a year and rotating about its axis once a day.Claudius Ptolemy CE
1.) He introduced the concepts of small circles on larger circles and points where the planets motion is not uniform.
2.) His theory of the universe formed the basis of our understanding of the motions of stars and planets for over a thousand years.
3.) He made contributions to astronomy, mathematics, geography, musical theory and optics.Muhammad ibn Musa al-Khwarizmi 780 C
1.) He compiled astronomical tables (Zij) based on Hindu and Greek sources like calculating the positions of the sun, moon and planets and predicting eclipses.
2.) He introduced algebra and Hindu Arabic numerals.
3.) He used geometry to make astronomical calculations about the movement of planets and stars.Copernicus 1473
1.) His theory was that the sun is at rest near the center of the universe and that the earth spins on its axis once a day and revolves yearly around the sun.
2.) He discovered the solar system between 1508 and 1514.
3.) His view had the earth and other planets moving in circles around the fixed sun.Galileo Galilei 1564
1.) He invented the telescope
2.) He used the telescope to report observations of the mountains on the moon and the moons of Jupiter and the phases of Venus and the rings of Saturn.
3.) He used a telescope to study the milky way and discovered that it has a huge number of stars.Isaac Newton 1645
1.) He was the first to make a reflecting telescope.
2.) He contributed to science the 3 laws of motion that is the foundation for the principal of universal gravitation.
3.) He discovered the planet neptune in the solar system.Johann Gottfried Galle 1812
1.) He was the first person with his student to view the planet neptune.
2.) He discovered 3 new comets.
3.) He came up with a new method to measure the solar parallaxEdwin Hubble 1889
1.) He determent that there are other galaxies in the universe beyond the milky way.
2.) His observation was that things farther away from earth were moving away faster witch meant the universe must be expanding.
3.) He formulated Hubble's lawApollo 11 1969
1.) It was the first landing of the first person with Neil Armstrong to walk on the moon on July 20 1969.
2.) The mission provided lunar samples that helped to understand the moon and earth formation.
3.) The discovery of the giant impact theory for the moon's origin and instruments to study the solar wind and lunar surface.Katie Bouman 1889
1.) She led the development of an algorithm for imaging black holes.
2.) Her research focuses on computational imaging sensors to observe difficult or impossible measures.
3.) She took a photo showing a halo of dust and gas 500 million trillion km from earth.An example of a time span
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