valkyrie wrote:I think this blog post (and the comments) has some fairly good and specific advice. You do not want to imitate the example SOP, though
Out of curiosity, what interests you about physics? For example, is it a question like, why is the sky blue? Or, what happened at the beginning of the universe?
cato88 wrote:I thought the sky was blue due to rayleigh scattering. Beginning is a little harder.
swepi wrote:cato88 wrote:I thought the sky was blue due to rayleigh scattering. Beginning is a little harder.
Sure, but at a deeper level, what is Rayleigh scattering? For example, is it caused by water vapor? If it is, then why are clouds white and not blue? In either case, the particles need to be around a tenth of a micron in size, smaller than a typical droplet of water vapor. Smoke, for example, will scatter blue and violet light more strongly, as do the feathers of some birds.
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