Astronomers Flashcards

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1
Q

Ptolemy

A

Greek astronomer, and mathematician

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2
Q

Ptolemy (Made)

A

Geocentric theory

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3
Q

Nicolaus Copernicus

A

Amateur polish astronomer

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4
Q

Nicolaus Copernicus (made)

A

Heliocentric theory

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5
Q

Tycho Brache

A

Danish astronomer

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6
Q

Tycho Brache (believed)

A

Blend of Ptolemy and Copernicus theory. Believed that other planets in our solar system orbit the sun and that grouping orbited the earth

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7
Q

Tycho Brache (legend)

A

Nose of gold, lost nose in battle of mathematics

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8
Q

Johannes Kepler

A

German mathematician

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9
Q

Johannes Kepler (realized)

A

Realized that the planets go around the sun and their orbits in an elliptical manner

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10
Q

Johannes Kepler (developed)

A

Keplers three laws of motion (uses math to explain orbits of planets)

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11
Q

Galileo Galilei

A

Italian mathematician, physicist, and astronomer

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12
Q

Galileo Galilei (achievements))

A

Did not invent telescope but was the first to observe rings of Saturn, four moons of Jupiter, phases of Venus, sunspots and more

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13
Q

Geocentric theory

A

The theory that the planets revolved around earth

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14
Q

Heliocentric theory

A

The theory that planets revolved around the sun

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15
Q

Isaac Newton

A

English mathematician who invented calculus

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16
Q

Isaac Newton (achievements)

A

Came up with the laws of gravity, investigated nature of light, improved the refracting telescope

17
Q

Newton improved the telescope how?

A

Replaced lenses with an objective mirror now called reflecting telescope

18
Q

Edwin P. Hubble

A

American astronomer, who was influential in modern cosmology

19
Q

Hubble

A

Observed the universe is expanding constantly, used the Hubble constant to show the rate at which the universe is expanding and how far other universes are from us and how fast it is receding