figure 1.1 shows a photograph of an insect
September 11, 2021Cloud in a Bottle Lab
September 11, 2021
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The fact that we observe means that the a Earth is moving.
When we observe the position of a star its position changes over the course of a year. It will return to the same position a year after the first measurement. This effectively proves that is in orbit.
If the Earth was at the center of the Universe there would be no parallax.
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