Moontanman

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.

Yes, ignoring the friction of the atmosphere yes, if you indeed achieved escape velocity, no matter how quickly, you would indeed leave the earth but you would still be in orbit around the sun. Merged post follows: Consecutive posts merged The moon does not slow down because it is in orbit, there is not enough friction from the interplanetary medium to slow it down over any realistic time frame. It's orbital speed keeps it in orbit, when you jump you never achieve even a small fraction of the necessary speed, friction from air is a real problem as well for your speed.

NO! Earths gravity goes everywhere as does the gravity of everything else, men stay in orbit outside and inside their space craft because they are traveling at the same velocity as the space craft, no other reason! BTW it is not proper to say there is no gravity in space, it is called micro gravity. The moon stays in orbit due to it's centrifugal force exactly balancing the gravity of the earth, it's speed allows it to stay in orbit.

The planet does not loose energy because you come back to earth, energy is conserved, if you could literally jump off the earth then the Earth would indeed loose a tiny (and I mean minuscule) amount of energy. That is the basis of using gravity assists when sending space craft to other planets. the amount of energy lost is so tiny it's totally negligible but it does happen. Merged post follows: Consecutive posts merged Fireworks fall back to the ground because they never even come close to achieving escape velocity, speed is what is necessary to achieve orbit and escape velocity. fire works never achieve the speed necessary to do anything but fall back down, just like you when you jump.

Gaff, when you jump up you are not moving fast enough to do anything but fall back down, if you could jump fast enough you could achieve orbit or maybe even escape velocity. You just can't jump with enough force to over come the Earths gravity. The Earth doesn't fall into the sun because the earth is orbiting the sun fast enough to stay in orbit, if it wasn't it would spiral inward toward the sun. Anything in orbit around the earth is already traveling fast enough in relation to the sun to orbit the sun as well so the sun's gravity is negated by the motions of the earth in orbit. No force is necessary to drag the earth around. If you are in a space ship in orbit around the Earth (or on it) and you jump off it you stay in orbit because you are already traveling at orbital speed. Your jump puts you in a slightly different orbit and very very slightly changes the orbit of the space ship but you stay in orbit.

I see your point but it seems to me if the moon were to "loose" the bonds of earths gravity it would continue to rotate every 27.3 days.

Lot of depends ons here but for the most part the best answer is no. The chances are we know 100% of the elements to be found in space or anyplace else. we can make elements that do not naturally exist but they are all radioactive and exist only for very short periods of time. We can imagine quite a bit but lots of things are possible. Generation type space ships would probably come closer to resembling small worlds than closed containers for such long journeys. More likely any such passengers would stay inside their enclosed worlds and just use the raw materials of the new star system to make more of their own type worlds, planets would be scary places for them after generations of living in a small safe world of the habitat ship.

You have an agenda that has nothing to do with sauropod brains, why don't you stop being so disingenuous and start a thread on being a vegan and stop trying to mislead every one into thinking you are trying to argue why sauropods had small brains? BTW, there is more to it than just small orange sized brains. http://www.examiner.com/x-10722-Austin-Science-Policy-Examiner~y2009m11d14-Say-hello-to-a-titanic-ancestor

The moon rotates once on it's own axis every orbit of the earth, this results in the moon always showing one face to the earth. If the moon did not rotate you could see it's entire surface each time it orbited the Earth. http://en.wikipedia.org/wiki/Moon

All the other planets combined added to Jupiter would not be enough mass to allow Jupiter to be a brown dwarf much less a star.

How about witfitzic shiner? Making sure the new generation of nitwits has shiney witfitzics has to be important.

I see what you mean but when most people think of time they add it to the other three, like an after thought, My idea is that time be thought of as the basis for the other three not an add on after the fact. With out time you cannot have the other three. Most ideas seem to put it the other way around and say time only applies after you have the three space dimensions. What I was suggesting it that time is the background all the other dimensions apply to. Of course it's just an idea, that makes better sense to me when i imagine things like space time. Not a assertion of reality.

I can see the first dimension being time instead of looking at it from the idea of the last. As in One dimension is a time two is a line, three is a plane, and four a cube type thinking. take away 4, 3, and 2 and you still have time left. Time would be the fundamental dimension.

Being prey doesn't mean you cannot be a predator, and scavenging had a lot to do with it too. A link from a vegan site promoting vegan-ism? You really want to use that to show early humans were vegetarians, to these people their dogs are vegetarians. Not a bad link as I have shown in the quotes not exactly the final word is it? Read my links again, pay attention to what they say, meat is a better food than plants, it's more concentrated, it allows for smaller digestive systems and eating less food so all your time isn't spent eating. Lots of other benefits as well. Really read the links, don't just graze over them. Because they don't have to be, they use the benefits of eating meat to do other things. We use our brains to make tools and weapons, other carnivores already have weapons built in they do not need them. No need, I've been that way my whole life. No it is not a primary but it is and was for humans, chimps do not have the brains of humans, they do not need the same food value from their foods as we did and do. But saying chimps are vegetarians is simply not true. Chimps will eat meat at any opportunity but we cook it, we get much more out of meat than chimps do.

Skeptic, what does this have to do with beaming power from the moon? i know it could be done, it's the doing of out that will be difficult. beaming power from the moon is considerably different than beaming power from geo orbit .

I am quite sure, the eating of meat fueled our large brians http://www.paulcooijmans.com/evolution/eating_meat.html http://berkeley.edu/news/media/releases/99legacy/6-14-1999a.html http://news.harvard.edu/gazette/story/2008/04/eating-meat-led-to-smaller-stomachs-bigger-brains/ And if eating meat did contribute to our large brains, then why aren't the rest of the predators out there become as smart as we did? They don't have hands or use tools, their predatory nature has little to do with intelligence and everything to do with having big teeth and claws. If I'm lucky with sleeping pills 2 hours a night. Merged post follows: Consecutive posts merged[quote name=Tau Meson;544442Take a look at the diet of our nearest biological species' date=' the primates: http://web.cast.uark.edu/local/icaes/conferences/wburg/posters/nconklin/conklin.html As you can see, they eat very little to meat whatsoever. [/quote] Chimps kill and eat monkeys, but they do not have big brians like ours, I think the links i provided tell the tale.

I would think that beaming large amounts of power to the earth would have negative consequences, beams from the moon would not be focused very small and would no doubt be spread all over the entire earth. To make them concentrated enough to be useful would require beaming many times the power needed to make up for beam loss. I honestly cannot see this being a viable alternative.

Humans did not follow a largely vegetarian diet, humans have been predators, eating meat is how we grew large brains. Whales are not herbivores by any definition. I sleep even less, does that mean I am intelligent, i don't see the correlation here.

The first thing that comes to my mind is that it's a long way to beam energy, losses from the beams would be enormous.