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RE: Why is there gravity?
April 18, 2015 at 12:22 pm
The "what and the how" are more important than the "why". There really is no ultimate reason for "all this", at least not one with a giant cognition causing it.
The universe was around before we existed, and it will go on fine without us when we go extinct an our planet dies. It sure is fun in the meantime to make the attempt to find answers to the unknown to get to the point of describing them in natural terms.
I wouldn't say gravity is always fun, certainly powerful, but would suck if the plane you are flying on at 40,000 feet loses power or flips over. The fall might not kill you but the sudden stop will.
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RE: Why is there gravity?
May 9, 2015 at 5:04 pm
(April 5, 2015 at 11:06 am)robvalue Wrote: What's with the d squared? I remember my A level physics teacher had us guess what power the d would be in the gravitational equation. For some reason I guessed 2. Freaky.
Spherical geometry and flux is the main reason. Masses are a point source of gravity. In physics, we often consider forces as a field (giving a net effect, rather than calculating the effect from each source) the action of which is represented by field lines. Sources are drawn with field lines pointing radially outward. The number of field lines is proportional to the strength of the source. The flux of the source, which is effectively the number of field lines per unit area, must remain constant across any sphere centred at the source and since the surface area of a sphere is proportional to the radius squared, the flux must be inversely proportional to the radius squared.
If more of us valued food and cheer and song above hoarded gold, it would be a merrier world. - J.R.R Tolkien
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RE: Why is there gravity?
May 9, 2015 at 11:00 pm
Heisenberg uncertainty principle, Quantum Entanglement, strings, branes, multiverses!
I'm under the impression the best minds in the world still don't know what fuck is going on!
It's Sunday, it's not too late for me to catch the morning service. I'll ask Father Stavros, see what he reckons about it all...
No God, No fear.
Know God, Know fear.
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RE: Why is there gravity?
May 9, 2015 at 11:08 pm
(May 9, 2015 at 11:00 pm)ignoramus Wrote: I'm under the impression the best minds in the world still don't know what fuck is going on!
And you would be right.
You make people miserable and there's nothing they can do about it, just like god.
-- Homer Simpson
God has no place within these walls, just as facts have no place within organized religion.
-- Superintendent Chalmers
Science is like a blabbermouth who ruins a movie by telling you how it ends. There are some things we don't want to know. Important things.
-- Ned Flanders
Once something's been approved by the government, it's no longer immoral.
-- The Rev Lovejoy
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RE: Why is there gravity?
May 10, 2015 at 2:33 am
There is gravity because gravity can be proven to exist.
Now shut the fuck up because god cannot be proven to exist as gravity can.
"Never trust a fox. Looks like a dog, behaves like a cat."
~ Erin Hunter
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RE: Why is there gravity?
May 10, 2015 at 3:55 am
(This post was last modified: May 10, 2015 at 3:56 am by ignoramus.)
wrong ... only the effects of gravity can be measured... just as the effects of god can.
both can kill if used incorrectly.
both suck big time!
both exist throughout the universe
books have been written about both
both are still a mystery
etc.
No God, No fear.
Know God, Know fear.
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RE: Why is there gravity?
May 10, 2015 at 5:45 am
What is the difference between Gravity and "Effects of Gravity"?
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition
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RE: Why is there gravity?
May 10, 2015 at 7:14 am
I can't imagine how weird things were before that King James guy invented gravity. I bet he wishes he'd put a patent on it now! And I suppose we needed gravity before anyone could work out how to evolve. So he kind of invented evolution too.
I just about get that 
