The Anthropic Principle- The earth has just the right conditions for (human) life. This is illustrated by: 1) the distance of the earth from the sun 2) Gravity and electromagnetism 3) Protons and neutrons 4) the nature of water (i.e. ice floats, etc.)
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The anthropic principle says that the universe appears "designed" for the sake of human life. More than a century of astronomy and physics research yields this unexpected observation: the emergence of humans and human civilization requires physical constants, laws, and properties that fall within certain narrow ranges. http://www.reasons.org/articles/anthropic-principle-a-precise-plan-for-humanity
Atheist Physicists Prove God. This is interesting. The Universal Constant is fine tuned to 10 to the 120th power. That is 10 followed by 120 zero's, as in one in a trillion, trillion, trillion, trillion chances. If it were off at all , there would be no life. Hear, how Dawkins explains this and then you may decide.