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26 thg 4, 2016 · So how far has earth moved towards or away from the sun in these 4.5 billion years? Now perfect balance between the centrifugal force of orbital rotation and sun's gravity is …
The sun's spectrum is very complex, and indeed there are a lot of 'lines'—both light and dark (emission and absorption)—amidst a sea of what looks to be continuous frequencies.
15 thg 2, 2011 · Do you want to know both how the Earth-sun distance is measured and how the speed of light is measured? Those are completely different things. As I asked before, separate …
18 thg 1, 2021 · On the other hand, if the water were completely still, with a smooth and horizontal surface, then the sun glitter ribbon would be gone, and you would just see a direct mirror image …
19 thg 3, 2019 · That presumably means that more cosmic rays were making it past the Sun's (presumably weaker) magnetosphere, to reach the Earth. CORRECTION: The 50% higher …
17 thg 4, 2015 · Assume you're talking to someone ignorant of the basic facts of astronomy. How would you prove to them that Earth orbits the Sun? Similarly, how would you prove to them …
27 thg 4, 2018 · This question is inspired by a similar one asked on Quora. Let's say a wizard magicked Jupiter into the Sun, with or without high velocity. What happens? The Quora …
13 thg 6, 2021 · Night-blooming cereus are plants that only bloom at night. Their light-sensitive cells must be able to tell the difference between sunlight, and sunlight reflected off the moon. …
A well known story 'Two Children arguing about the sun' (From Lie Zi, ca. 500BC): On the way traveling to the east, Confucius saw two children were arguing. One child thought that the sun …
16 thg 8, 2019 · Light rays enter a raindrop from one direction (typically a straight line from the sun), reflect off the back of the raindrop, and fan out as they leave the raindrop. The light …
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