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
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
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
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
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
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
Are planets actually moving in elliptical orbits around the Sun or do . . . Assuming an ideal two body case such as Sun and Earth, both are orbiting around the barycenter in two elliptical orbits These two orbits are similar in geometry and scaled proportional to their relative distance from the barycenter
Is the distance between the Sun and the Earth increasing? Besides the moon, the sun has a tidal component for the earths oceans, and when that crashes into continents the energy absorbed comes from the potential energy of the sun-earth system I am not sure how this compares to the distance loss due to the mass and energy radiation of the sun you mentioned
Why are there dark lines in an absorption line spectrum from the Sun . . . As the radiation passes through a gas, certain wavelengths are absorbed Those same wavelengths appear in emission when the gas is observed at an angle with respect to the radiation source Since the gas absorbs photons and then re-emits them isotropically by my logic there is no reason why there should be any dark lines appearing on the absorption spectrum Explicitly, I don't understand why