When the moon blocks sunlight from reaching a portion of the earths surface?

It's a solar eclipse. The next one is scheduled for sometime in 2012
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Have the roles available to you as an Asian woman changed over the course of your career?

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How long does sunlight take to reach earth?

This varies with the Earth's distance from the Sun, but it takes the light from the Sun between 8 and 8 1/2 minutes to reach the Earth.
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Why can't sunlight reach the surface of the earth by conduction or convection?

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