Hot answers tagged sun
It moves in circles. At the poles there is no direction defined (east, west, north or south). This is how the sun moves at the north pole: http://www.jaloxa.eu/resources/daylighting/docs/sunpath_90_north.pdf . You can compare it to the other latitudes to get an idea. (http://www.jaloxa.eu/resources/daylighting/sunpath.shtml)
Yes. Even with todays technology we can get started. In this article by Korycansky et al 2001 it is suggested to use rockets to move an asteroid (like a larger version of the NASA ARM Asteroid Redirect Mission) to a cycling orbit between Earth and Jupiter. The asteroid would pass near infront of the Earth in order to give the Earth a slight gravity assist ...
Historically, two people (or groups of people) independently came up with different equations to model the blackbody equations in different parts of the spectrum. Rayleigh-Jeans law (classically derived) is valid for longer wavelengths and Wien's law (not Wien's displacement law) is valid for shorter wavelengths. The Planck Distribution approaches the two ...
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