About 803,000 results
Open links in new tab
  1. How much lux does the Sun emit? - Physics Stack Exchange

    When 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 …

  2. What is the simplest way to prove that Earth orbits the Sun?

    Apr 17, 2015 · If we assume the Sun orbits the Earth, the math says that the Sun should be much less massive than the Earth. If we assume the Earth orbits the Sun, the opposite is true. Either …

  3. What would happen if Jupiter collided with the Sun?

    Apr 27, 2018 · However, the Sun will accrete $\sim 10^{42}\ \mathrm{kg\ m^2\ s^{-1}}$ of angular momentum, which is comparable to its current angular momentum. The accretion of Jupiter in …

  4. Why doesn't sun go all the way to the horizon during sunset?

    Apr 14, 2023 · However, there may be an illusion where sun's position at horizon may appear slightly different than it actually is due to atmospheric refraction. It may be useful to read this. …

  5. Review: Lisa @ Sun Spa | AMP Reviews

    Apr 24, 2025 · Title: Review: Lisa @ Sun Spa Date: Apr 24, 2025 Phone: 571-638-1888 City: Vienna State: VA Location: By Chans Chinese House Fee & Tip (if applicable) 80+160 …

  6. How is distance between sun and earth calculated?

    Apr 27, 2015 · 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 …

  7. sun - Why is sunlight spectrum continuous? - Physics Stack …

    Mar 27, 2022 · The continuous spectrum of the visible photosphere of the Sun is attributable to the radiative equilibrium of the $\mathrm{H}^{-}$ ion. This has been recognised for at least 80 …

  8. What is actually meant by 'sun set' and 'sun rise' times, when …

    Feb 15, 2017 · 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 …

  9. What cosmic event would cause Sun rising from the west?

    Mar 31, 2013 · In principle the tidal forces of the Sun will eventually slow the Earth's rotation so it always shows the same face to the Sun. However I suspect this would be such a slow process …

  10. Black and white matters. But why and how? - Physics Stack Exchange

    Jul 3, 2014 · The visible has about half of the energy coming from the sun on the surface, as seen in the link. So a metal door in the sun will transfer the heat of the visible spectrum to the …

Refresh