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Originally Posted by LadyShea
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Originally Posted by peacegirl
How in the world can light reveal the Sun without it revealing matter? Photons can't reveal themselves, can they?
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The Sun is not "revealed" by light, the Sun emits full spectrum light as a product of nuclear fusion.
There are no "non absorbed" photons in the newly ignited Sun scenario, only newly produced and emitted photons. So what is all this crap about? |
Nothing at all.
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how can we decode an image from the light when the inverse square law would turn into full spectrum light?
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Originally Posted by LadyShea
In the newly ignited Sun scenario, the inverse square law only speaks to the intensity of the emitted light as it travels. Light from the Sun is more intense when it reaches Mercury, less intense when it reaches Venus.
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We all know that a light, such as a candle or a streetlight, looks dimmer the farther away from it we get. The brightness of light is the power (energy per second) per area. As the energy spreads out over a larger area the brightness (or intensity) of light decreases. Since the area increases as the square of the distance, the brightness of the light must decrease as the inverse square of the distance. Thus, brightness follows the inverse square law.
http://www.nasa.gov/pdf/583137main_I...w_of_Light.pdf
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Originally Posted by LadyShea
Do you even understand what dispersion means?
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This doesn't relate to the inverse square law.
Dispersion: Visible light is actually made up of different colors. Each color bends by a different amount when refracted by glass. That's why visible light is split, or dispersed, into different colors when it passes through a lens or prism. Shorter wavelengths, like purple and blue light, bend the most. Longer wavelengths, like red and orange light, bend the least.
Diagram demonstrating how a prism uses refraction to create a spectrum.
Definition: Dispersion