Moontanman

My first thought was to use it in a car to power an electric motor. Natural gas (methane) or propane are relatively abundant and methane can be made from bio-waste. It would make fueling a electric car easier and more efficient than a battery.

Didn't we just bail out the American Financial (banks, wallstreet investments and large industry) system to the tune of close to one trillion dollars spent almost immediately? Health care has to be at least as important as bailing banks who gambled with money they didn't really have.

ewwww I wrestled a troll, he confused me and won I feel dirty, I need a hot shower

It smelled like a week old fish from the beginning to me, lol

When I said that everything didn't fall at the same rate i was trying to get gaff to see the idea of friction and how it effects things and that the gravity field of the earth is different from the gravity field of the sun. In a vacuum everything would fall the same in the same gravity field but this idea of different gravity fields plays to the heart of the matter, different planets travel at different speeds due to being in different places in different gravity fields, everything is relative. A one pound lead ball dropped on the earth would fall differently than a one pound ball of Styrofoam. due to friction, friction is something gaff seems to want to ignore or invoke at his pleasure. An "airplane" can't continously orbit at 100 feet due to friction not because of some property of gravity. The idea of why planets move faster or slower plays to how different masses accelerate in different gravity fields as well. a planet doesn't spiral into the sun because it is so massive and has no friction with space, they travel at different speeds because they are at different distances from thier primary. Maybe I just don't understand what gaffs problem with gravity is, I'm beginning to confuse myself.

Thank you, I guess even a blind pig finds an occasional acorn.

You are right i am sorry, i can't take this seriously anymore

You've been misinformed Not true either.

WOW griff sounds a bit like centrifugal force. Gravity is the bending of space time by mass.

Actually gravity is not a force, what is the source of griff energy?

I am curious gaff, how long ago do you think this instance of creation was?

Centrifugal force gaff, centrifugal force, not griff energy. nothing more need be said.

If indeed gravity was the only thing affecting a planet it would fall directly int the sun.

This has already been covered several times, i will not repeat it yet again.

Please read the posts the people here are providing, then get back to us on any point we have not covered.

Gaff, I'll say this one more time, there is nothing to slow down planets but friction, not enough friction to slow down planets over time scales that are meaningful to humans. so yes given enough time planets would indeed spiral into the sun but the sun and maybe even our universe will not exist long enough for this to happen. Merged post follows: Consecutive posts merged Yes, if there was no air, and no mountains higher than 100 feet and the airplane was going fast enough it would "never" hit the ground. Of course if there was no air it would not be an airplane now would it?

Gaff, it's already been said, the centrifugal force of the motion of the planets prevents gravity from pulling them in. It does but it should be micro gravity instead of weightless Merged post follows: Consecutive posts merged Nope, the exchange of energy between both bodies is different if they rotate and orbit in different directions. In the case of the Earth and Moon, they will move apart, the earth's rotation will slow down till both orbit with one hemisphere always facing each other. This will take longer than the sun will exist so don't look for it any time soon. Merged post follows: Consecutive posts merged Only because of friction gaff, only due to friction. If there was no air or mountains you could orbit at 1 Nano meter . Merged post follows: Consecutive posts merged This has been answered several times already gaff, i see no reason to do it again.

Capt'n, actually gravity can slow things down under the correct circumstances, if the Earth were rotating retrograde or the moon was orbiting retro grade gravitational friction would cause the moon to spiral into the earth, as a matter of fact it would already have happened not long after the formation of the moon.

The orbital motions of the planets negate the pull of gravity, the sun will not exist long enough for the orbits of the planets to deteriorate significantly due to friction with gas and dust in space. For all practical purposes , yes!

Yes but still not enough to initiate self sustaining nuclear reactions and turn Jupiter into a star.

Because there is not enough friction in space to slow down planets.

Another way to look at it is if you could some how magically suspend your self in a box or space craft at 18,000 miles above the earth but be stationary with respect to the earth you would not float. you would still feel gravity, a much reduced gravity but gravity all the same. If your space ship and the earth were the only objects in the universe and you were 1 billion light years away but totally stationary in respect to the earth you would still feel a very very tiny pull from the earth, enough to eventually make you stick to the side of your space craft closest to the earth. Motion is what makes you float, not the absence of gravity.

Ignoring the friction of the air a bullet fired from a gun at normal "gun" velocities will arch up and over and hit the surface at the same speed it left the gun, gravity will slow it down as it achieves it's highest altitude but the speed will be regained as it falls back. A much higher muzzle velocity will allow the bullet to arch over and never hit the earth and stay in orbit, a higher velocity will allow the bullet to spiral away from the earth forever or at least until the suns gravity takes over and it goes into orbit around the sun. a much higher velocity and the bullet will escape he sun and go into orbit around the galactic core, even higher and it can leave the galaxy as well. If you could fire a gun with 0 radial velocity these ideas will change some what but in the real world that would be if not impossible very unlikely.

No it slows down due to friction with the air, if there was no air a bullet would arch over and hit the earth at the same speed it had when it left the muzzle of the gun. In a word, yes! Actually the cap't is correct, but it would go on forever or at least into orbit around the sun until it hit another object. This effect is not why a bullet slows down how ever and if the bullet was fired just below escape velocity when it reached a certain point it would return to the earth (ignoring any friction) and hit with the velocity it had when it left. There so many assumptions here it is difficult to cover them all, any radial velocity of the bullet if it was less than escape velocity, would cause it to orbit the earth and not come back and hit the earth.

Gravity holds the moon in orbit, since the moon is not moving away from the earth the earths gravity does not slow it down. Yes, barring the occasional hill or mountain and the friction of the air you could orbit at the height of a mouse if you had enough speed.