Monday, July 1, 2013

A Computer (Part 4) - Sun, Earth, Moon, Stars

The earth is the Lord's and all that is in it, the world, and those who live in it;  (Psalms 24:1 NRSV)
Yours is the day, Yours also is the night; You have prepared the light and the sun.  (Psalms 74:16 NASB)
When I look at the night sky and see the work of your fingers- the moon and the stars you have set in place- what are mortals that you should think of us, mere humans that you should care for us? (Psalms 8:3-4 NLT)
He determines the number of the stars and calls them each by name. (Psalms 147:4 NIV)

Speaking of the sun (since it brings the heat that helps the evaporation process), think about it for a moment.  Our earth rotates around the sun at just the right distance away from the sun.  If we drifted farther from the sun, the earth would freeze and life as we know it would cease to exist.  If we drifted closer to the sun, we would burn up and life as we know it would cease to exist.  We maintain just the right distance from the sun in a very (cosmically) narrow band of survivability.  The combined forces from the gravitational pull of the sun, earth, moon, and planets all keep us just the right distance away.

Oh yeah.  The size of the sun is very important, too.  If it was twice the size that it is now, things would be too hot.  If it were half the size it is now, things would be too cold.  Once again, life as we know it would cease to exist.

We worry about global warming causing us to burn up.  What about non-rotation?  What?  What are you talking about, Pete?  I mean the earth rotates.  This is really important for many reasons.  If the earth didn't rotate, one side of the earth would be too hot to survive and the other side would be too cold to survive.  Because it rotates at a rate of about one per day, the entire surface of the earth stays just the right amount of nice and toasty warm.

By the way, did you know the axis is tilted?  Yeah, we don't rotate simply around an axis that is straight up and down.  It's tilted!  Because of this, we have seasons!  When the "top" is closer to the sun, the weather is warmer at the "top" and colder at the "bottom."  The opposite is true as well.  The result, we have four seasons throughout the year, cycling life through the process we watch year after year.  Not seasons.  The band of survivability on the earth gets really small since the "middle" (equator) would always be too hot and the extremes (North and South) would always be too cold!  Life-generating, cycling seasons would cease to exist.

The size of the sun, the gravitational pull of the sun-moon-planets, the distance between the earth and the sun, rotation on a tilted axis.  All of these things MUST be in place for life as we know it to continue to exist.  It's almost like more pieces of the computer that need to be in place for the computer to work.