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optics - If the sea surface were absolutely calm should the Sun ... 18 Jan 2021 · On the other hand, if the water were completely still, with a smooth and horizontal surface, then the sun glitter ribbon would be gone, and you would just see a direct mirror …
Could we recharge the sun's "batteries"? - Physics Stack Exchange To recharge the Sun, we need to inject into its core Hydrogen. If we achive Civilization 3 or 4 maybe we could create a kind of gigantic missle tank of hydrogen with the same amount as …
sun - Coronal heating problem -How deep does it go? - Physics … 28 Feb 2017 · The Sun’s meridional circulation is most likely mechanically driven and thermally braked, roughly opposite to the driving mechanism of the Hadley cell in the Earth’s …
How hot can metal get in sunlight? - Physics Stack Exchange 31 May 2015 · I quite liked this one [archived] describing measurements on cars. It shows that things left in the sun can get significantly hotter than the surrounding air (although there are …
sun - How do I estimate the probability of a Carrington-level … 15 Mar 2017 · If a Carrington-level direct hit would require the Earth to be exactly in the center of the CME's expanding wavefront, the probability may be calculated as follows: The surface …
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 is distance between sun and earth calculated? 15 Feb 2011 · How has the distance between sun and earth been calculated? Also what is the size of the sun?
How does heat pass through glass? - Physics Stack Exchange How does heat pass through glass? It is not heat that passes through the glass,but electromagnetic radiation in the infrared range, in the same way as the visible light passes. …
Black and white matters. But why and how? - Physics Stack … 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 …
What is the relationship between crescent moon and position of … 1 Oct 2021 · The crescent of the moon is almost straight up/down because the Sun is horizontal with us, and therefore also horizontal with an imagined observer standing on top of the Moon …