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
reference frames - Does Relativity make a difference on whether Earth . . . Since the sun is so massive, this essentially constitutes of the Earth orbiting around the sun, as seen from any inertial frame of reference Of course moving to a frame of reference where the Earth is stationary we will observe the sun to be moving around us
Can Jupiter be ignited? - Physics Stack Exchange Our solar system itself contains two candidate "Earths" One is Jupiter's moon Europa and another is Saturn's moon Titan Both of them have the problem of having at low temperature as Sun's heat ca
sun - Nuclear fusion - Hydrogen isotopes - Physics Stack Exchange What is the isotope composition of hydrogen atoms in the sun? Are the ratios of protium:deuterium:tritium similar to those we find on earth? What does the nuclear fusion of hydrogen atoms in the sun
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
How to get 3D coordinates (XYZ) of the sun given Azimuth and altitude . . . 0 I want to create an Augmented Reality (AR) application to show the sun's position where I need the 3D (XYZ) coordinates to plot in Augmented Reality (AR) Main question: I need to calculate the 3D coordinates (XYZ) from the sun Azimuth and altitude elevation Look at the image