iNow Posted February 28, 2009 Posted February 28, 2009 To add to Mr Skeptics response, there IS more energy coming into the system described, it's just coming from the sun.
Moontanman Posted February 28, 2009 Posted February 28, 2009 ok. i thought up another one. i know, been a while. my bad. alright. so, if say, we filled mars with alot of windmills, and then brodcast that harvested electricity through radio waves back to earth, well, after a while, wed be getting all this free energy, but what would be happening to mars? the wind wouldnt just stop would it? but, judging on this post, theres only the energy that there is, no more no less.{if that makes sense}. so what would happen on mars after we harvested all that energy off of it just through wind. and solar, but thats external source anywhay, so no need to worry about that one. I think it needs to be said that the wind on Mars contains very little energy when compared to wind on the earth. a 100mph wind on Mars it's a gentle breeze on the earth in terms of energy content. Add that to the losses incurred while beaming this energy to the Earth and you get a strong radio signal but almost no net energy increase.
cameron marical Posted February 28, 2009 Author Posted February 28, 2009 why would you lose some? and also, if everything is fueled off of something else, somethings gonna have to run out right?
insane_alien Posted February 28, 2009 Posted February 28, 2009 why would you lose some?and also, if everything is fueled off of something else, somethings gonna have to run out right? you would lose energy in transmission because of 1/absorption by dust and gas in space and the atmospheres 2/you won't have a perfectly focused beam so a lot of the energy will simply miss the reciever 3/even if you did have a perfectly focused beam, half the time it would be missing the reciever due to imperfect aim and the time it takes for corrections to have any effect. 4/ no such thing as a perfect transmitter or a perfect reciever. 5/ ground based transmission losses as seen in current electrical distribution networks.
cameron marical Posted February 28, 2009 Author Posted February 28, 2009 so, we use up all this energy from our star, and it just keeps giving. what happens to the energy that the star just gave out to us? where does energy go after heat? it seems to just fade away.
Klaynos Posted February 28, 2009 Posted February 28, 2009 so, we use up all this energy from our star, and it just keeps giving. what happens to the energy that the star just gave out to us? where does energy go after heat? it seems to just fade away. Eventually it is radiated into space... But the possible processes are many and varied...
Mr Skeptic Posted February 28, 2009 Posted February 28, 2009 so, we use up all this energy from our star, and it just keeps giving. And the sun produces energy by fusion, but the hydrogen and other light elements are consumed in this process. Eventually, the stars too will die out, and then we are really in trouble with energy. If the universe lasts that long that is... what happens to the energy that the star just gave out to us? where does energy go after heat? it seems to just fade away. It radiates out into space, spreading out and becoming dimmer the farther you go. Some of it will still be usable, like running a solar panel from the stars ... you get extremely little, but you could get some. Some of it will be in the infrared, and you will not be able to use it unless your collector is colder than the infrared. Eventually, all of it will be completely unusable.
cameron marical Posted March 1, 2009 Author Posted March 1, 2009 man. it sucks that we have to rely on something to live. if only we could be like photons all arranged and connected to be just like our bodys, except we wouldnt rely on anything at all. just pass through space, unseen and everexistant. at least until you run into something, or fall into a black hole. what is energy like as it radiates into space? in what form is it in? protons?
cameron marical Posted March 2, 2009 Author Posted March 2, 2009 so, back to what moontanman said, about the 100mph winds being a breeze. why? is mars's atmosphere less dense than ours or something?
Klaynos Posted March 2, 2009 Posted March 2, 2009 so, back to what moontanman said, about the 100mph winds being a breeze. why? is mars's atmosphere less dense than ours or something? Very much so. It's about 1% the density of the earths.
cameron marical Posted March 3, 2009 Author Posted March 3, 2009 say we put solar panels all throughout space surrounding our planet, and also put lightbulbs in the atmosphere {for artificial sunlight of course}, could we literally recylce everything that happens on our planet energy-wise? would we still eventually run out of energy somehow?
Fedace Posted March 3, 2009 Posted March 3, 2009 Does anyone know what Stanford university is doing with 60 million dollar grant they got from the goverment. Obama gave 60 million dollars to Stanford to come up with alternative energy source for the future. I wonder if they came up with anything so far.
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