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What else can I help you with?
Did aristarchus say the earth was the center of the universe?
No, Aristarchus of Samos proposed a heliocentric model of the universe with the Sun at the center and the Earth revolving around it. This idea was contrary to the prevalent geocentric model at the time.
How many days does mercury have?
The length of a year (orbit) for Mercury is 88 Earth days, about 1/4 that of Earth. The planet spins 1.5 times during that period, about once every 58.7 Earth days. The combination of these motions results in a "solar day" (sunrise to sunrise) of 176 Earth days, or exactly twice as long as the year. So you could say that a Mercury year is only half of a Mercury solar day.
Do the earth and moon rotate with each other?
It all depends on where you're standing. On Earth, you can see only one side of the Moon, so you can say that the Moon does NOT rotate relative to Earth. BUT as you watch the Moon all month long, you can see that different parts of it are Sun-lit at different times, so you can also say that the Moon DOES rotate relative to the Sun. Earth definitely rotates with respect to both Moon and Sun. As for 'rotating with each other', no; they both REVOLVE together around the Sun, but they can never ROTATE together. Rotation is a ball spinning, and revolution is the ball's path around a larger, heavier ball. Since the Earth and Moon are two separate balls, each has its own rotation, but they can both share revolution around the Sun.
What did ptolmey say about the solar system?
Ptolemy sought to explain planetary movements by stating that every planet in the solar system revolved around the sun. Astronomers began to question this explanation when they realized that planets often appeared to be moving backwards relative to Earth.
If this country is on the opposite side of the globe to say New Zealand or Australia how is it that they do not appear to be upside down?
Up and down are relative to the centre of Earth so down is pointing toward the centre of Earth. Think of a ball if you point to any place on the outside you always point to the middle. -------------------------------------------------------------------------------- Oh, but they do! You just have to stand on your head to look!
Did aristarchus say the earth was the center of the universe?
No, Aristarchus of Samos proposed a heliocentric model of the universe with the Sun at the center and the Earth revolving around it. This idea was contrary to the prevalent geocentric model at the time.
How do you say aristarchus?
air-is-tar-kus
How many motions is the earth undergoing?
Earth goes under millions of motions - itself, the pull of the moon, orbiting the sun, which orbits a galaxy where the stars change position all the time, and the galaxy is still stretching. Now why millions? Because everything has its own gravity, no matter how small, and can affect in even the slightest bit to our orbit. So, I should say billions. Now, for those who think that answer is wrong, take this one then: Relative to the sun, 2.
An object is in motion if its position changes relative to a what?
An object is in motion if it changes position relative to a reference point. Motion is a relative quantity and is expressed in respect to the position of another object. Example: both a car and the Earth are moving (earth is revolving around the sun) but if we express the motion of the car in respect to the Earth, we say the car is moving relative to the Earth. At the same time the earth is moving relative to the sun.
Who showed that the sun was the center of your system?
The first person (that we know of!) to say that the Sun is in the center of our solar system and that the Earth goes around the Sun was Aristarchus of Samos, a Greek astronomer and mathematician about 2400 years ago.
All motion is relative?
All motion is relative. The question "is this object moving?" is in fact meaningless unless we specify "moving relative to what other object". Similarly, there is no such thing as "absolute rest": it's just as true to say that the road is moving at 50 km/h relative to your car as it is to say that your car is moving at 50 km/h relative to the road.
What do we mean when we say that motion is relative?
When considering how 'fast' something is moving on earth, you ignore the fact that the earth itself is rotating, that the earth is orbiting the sun, and that the solar system itself is moving through the universe. All you care about is the relative motion between the object, and the earth itself, or another object perhaps.
How many miles can earth travel in one day?
It depends on your frame of reference. The earth travels around the sun. The sun travels around the centre of the Milky Way Galaxy and takes the earth along with it. So the earth travels at the combined speed of those two motions. But then, the Milky Way Galaxy rotates around the centre of our local cluster and takes the Sun and the earth along with it. So the earth travels at the combined speed of those three motions Our local galactic cluster is not static, so ... And so on. Where do you stop and say this is the fixed point of reference against which I will measure the speed of the earth?
Who was the first to believe in the heliocentric universe?
While many say it was capernicus I think it was actually " Aristarchus" a couple hundred years before Capernicus.
Why do people say he got his genes from a relative?
Because the relative is related to him/her
Who was the first person to say that the earth travels around the sun?
The first person known to have proposed that the Earth travels around the Sun was the Greek astronomer and mathematician Aristarchus of Samos in the 3rd century BCE. His heliocentric model was not widely accepted at the time and it took many centuries for the idea to gain widespread recognition.
Who was the first greek to believe in heliocentric universe?
While many say it was capernicus I think it was actually " Aristarchus" a couple hundred years before Capernicus.
