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Inside the sun’s radius, however, is a different story. As it currently stands, the curvature of spacetime increases as one approaches the sun’s radius and then, after passing the boundary, decreases until levelling out in the center of mass of the sun. More @Wikipedia
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- What if the Sun became a black hole? - Physics Stack ExchangeInside the sun’s radius, however, is a different story. As it currently stands, the curvature of spacetime increases as one approaches the sun’s radius and then, after passing the boundary, decreases until levelling out in the center of mass of the sun.
- How much lux does the Sun emit? - Physics Stack ExchangeWhen you look 'at the world' (i.e. to the horizon) on a clear day, unlesss the sun is at a very low angle, the surface of your eye is not illuminated directly by the sun, only reflected sunlight from the atmosphere, ground and objects. The 32,000-100,000 lux figure is referring to a horizontal surface illuminated directly by the sun.
- What is actually meant by 'sun set' and 'sun rise' times, when taking ...The Sun has actually set/risen and we see it due to the way light is bent across the atmosphere. Apparently due to coincidence of the size and distance of the sun, its exactly the same size - so if we see 50% of the sun, the sun is 50% below the horizon. So, I understand all this, so here is my question :
- How does heat pass through glass? - Physics Stack Exchange$\begingroup$ Let's say the glass is receiving heat from a heat source such as the sun. Won't a fraction of the radiation pass through the glass and act directly on the air to warm it up? $\endgroup$ – Greg Harrington
- How is distance between sun and earth calculated?Another way of calculating the earth - sun distance is to look at the centrifugal and the gravitational force. This solution assumes that one already knows the mass of the sun, but thats a different problem ;-).
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