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How much lux does the Sun emit? - Physics Stack Exchange I want to know how much lux the sun emits on a bright day - I don't mean when one stares directly at the sun, but rather when one walks casually outside when the sun is shinning brightly Now the
Nuclear fission in the Sun - Physics Stack Exchange The Sun's energy comes primarily from fusion of light elements in its core It is estimated that a very small fraction of mass of the Sun (~$10^{-12}$ times the abundance of hydrogen) is uranium (b
Why the Sun has a higher temperature than humans? The thermal energy per gram of matter of the Sun is definitely higher than of humans, being between 6000K and 15000000K depending on where in the Sun What you are probably thinking of is the fact that humans put out more power per unit volume than the Sun, described The reason for that is, even though the matter of the Sun has a lot more thermal energy per unit volume, the Sun is very large
Black and white matters. But why and how? - Physics Stack Exchange So a metal door in the sun will transfer the heat of the visible spectrum to the interior if painted black, will reflect it back and keep the interior cooler if painted white It is a good reason for painting roofs and walls white in hot countries A white car is also better in hot countries for this reason
Review: Lisa @ Sun Spa | AMP Reviews 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 Nationality: Chinese Age Estimate: 25 Physical Description: 5’1”-5’3”, maybe 115-120lbs, C cup, mid back long hair, shaved
Historically, how do we know that Earth moves around Sun? And it does . . . Questions: -- Sun is something we see on daily basis, so it would not be strange if humankind got curious to know about it, and made theories,observations,maths to prove it How did Copernicus and others came up with the theory that earth moves around sun in elliptical orbit How did they prove it?
Why is the Sun almost perfectly spherical? - Physics Stack Exchange The Sun rotates fast, but not quite fast enough to offset its massive gravity The Earth is much less massive, and as such, the rotational distortion is much more pronounced Also, Earth has solids - this is much less important than the rotation on average, but it does give some interesting local maxima and minima