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
Why do we say that the Earth moves around the Sun? 3 The sun, moon, earth (and so on) all move around each other The reason we say the earth moves around the sun is because the effects are more visible on a macro scale, and easier to predict with reasonable precision
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?
How long until the sun cannot sustain human life on earth? The sun will last, at its current brightness for 9 billion more years How long until the sun gets burned down to the point where it cannot sustain life on Earth anymore? Updated: I am more concer
astrophysics - Why wouldnt the part of the Earth facing the Sun a half . . . Over half a year, this nearly 4 minute difference every day adds up to about 12 hours, the time it takes to rotate half way around and face the sun again 24 hours is the length of the average solar day (Synodic Day), the time it takes the earth to rotate so that (on average) it is facing the sun at the same angle
What would happen if Jupiter collided with the Sun? 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 question has two completely oppo
gravity - What will happen if a ball of ice with the mass of sun is . . . A rather odd sun, to be sure (at least if you're an astrophysicist), because of the absurdly high oxygen content, but a sun nonetheless Of course, the fact that your ball of ice has turned into a ball of glowing plasma doesn't stop you from dropping it into the sun
How is Earth protected from the gamma rays generated by the Sun? The Sun is generating energy by nuclear fusion This nuclear fusion will emit energy in the form of gamma rays Normally, the earth's ozone layer filters the ultraviolet radiation while the earth's
Is the light from the Sun the same as the light from a bulb? The light from the Sun has a color blip, right where early atomic physics suggested the element with two protons in its nucleus would radiate That element, called Helium (from Helios, Greek word for the Sun) really does exist discovery of Helium There isn't any of it (nor evidence of it) in light from a typical light bulb