optics - If the sea surface were absolutely calm should the Sun ...
Jan 18, 2021 · If the sea surface were absolutely calm should the Sun reflection be the area of a circle instead a ribbon? [duplicate] Ask Question Asked 4 years, 6 months ago Modified 3 …
Why does the earth revolve around the sun? [duplicate]
Dec 15, 2017 · The basic reason why the earth circles the sun instead of another star or the moon is that that reflects the way the planets formed, from a gas and dust cloud that was circling …
Historically, how do we know that Earth moves around Sun? And it …
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 …
Why the Sun has a higher temperature than humans?
Jul 2, 2024 · 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 …
The "official" mass of the sun as unit? - Physics Stack Exchange
There is no official "mass of the sun" in kilograms. However there is an official "solar mass parameter" GMs G M s (previously known as the heliocentric gravitation constant). This value …
astronomy - sun-moon-earth anomaly - Physics Stack Exchange
When one looks at the sun and the moon in the sky together, why is it that the illuminated crescent of the moon does NOT "point" at the sun? (More correctly the perpendicular bisector …
Why does the Sun always rise in the East? - Physics Stack Exchange
Nov 26, 2014 · The Sun does not rise, it is the horizon that goes down. You say that Sun rises in the East (with a certain degree of oscillations due to the tilt of the axis) just because the Earth …
How fast is Earth moving through the universe?
0 Earth spins, Earth orbits the Sun, the Sun orbits the galaxy, the galaxy is moving and the universe is expanding. How fast is Earth moving through the universe? Speed has to be …
Why isn't the Sun blue? - Physics Stack Exchange
The sun radiates like a black body and its spectrum is shown below. The sun does emit blue light but it also emits red and the other colors with almost the same intensity.
Why does the Sun rotate? - Physics Stack Exchange
Apr 28, 2020 · The Sun was certainly much faster rotating in the past. When it was 100 million years old it likely had a rotation period somewhere between 0.5 and 5 days (observed in solar …