whirlwind Posted January 9, 2004 Posted January 9, 2004 didn't you just contradict your self skykilo? fuck it i give up i think i'll go get a book and just type a bunch of garbaly gook and then it'll be all good cause P=phat and thats all that matters Quote
skykilo Posted January 9, 2004 Posted January 9, 2004 (edited) You're totally right. Paul is a photon. Edited January 9, 2004 by skykilo Quote
skykilo Posted January 9, 2004 Posted January 9, 2004 You can kill all of Schrodinger's god-awful cats for all I care, I've got allergies. Quote
Dan_Harris Posted January 9, 2004 Posted January 9, 2004 and that is why gravity does not pull it back less you reatach the string or "turn gravity on" There is no such thing as gravity, the earth and all the planets and stars suck! Quote
Lambone Posted January 10, 2004 Posted January 10, 2004 I don't know about all that physics mumbo jumbo...but it seams like if we do send a person to mars, the hard part would be getting them back. Â Quote
catbirdseat Posted January 10, 2004 Posted January 10, 2004 All I can say is that Skykilo upped the ante until the math and physics were too rich for this chemist's blood. I fold. Quote
whirlwind Posted January 10, 2004 Posted January 10, 2004 acording to that chart link mars escape vel is half that of earths and thats where most of the fuel expenditure is so i may not be as difficult but it would be impresive and probly be little to no room for calculation error. cbs all that math mubo jumbo is theory, anyone thats says they have a conclusion hass mearly admitted that they are done thinking about it. plus he clearly states that photons have no mass then gives the equation on how to find the mass of a photon. hes just talkin in circles read his posts again Quote
skykilo Posted January 10, 2004 Posted January 10, 2004 Actually, what the equation shows is that a photon of arbitrary energy has no mass. By arbitrary, I mean that you can consider any photon, one with as large or small an energy as you desire, and it will be massless. Â Anything anyone says about science is all theory. That's what science is. Make a model, test it, and use it until you find that it's broke. Our theories now are very accurate in many different ways, so while we could never say it is absolutely true, it's pretty damn close. Here's a nice analogy: Mt Rainier isn't exactly 14,410 feet tall. It may be, say, 14,410.0162789... feet tall. But who cares? It seems to me you'd be telling the truth to say it's 14,410 feet tall. The photon is massless to an even better approximation than the example I just created. Â You're totally right about the escape velocity thing. Mars is smaller than Earth, so it is a smaller potential well. Â As for me, I don't give a rat's ass about Mars. There are no face shots (of the preferred type) there. And yes, I have limited my thinking to say that. Â Have a great weekend everyone... Quote
whirlwind Posted January 10, 2004 Posted January 10, 2004 um mars is bigger than the earth dude thats why the escape vel is lower, thew surface is father away from core which is where G is the strongest Quote
skykilo Posted January 10, 2004 Posted January 10, 2004 I was referring to smaller mass, which is the critical matter. Mars has smaller mass and radius, though, so I have no idea what you are talking about.   Mars/Earth Comparison Bulk parameters  Mars Earth Ratio (Mars/Earth) Mass (1024 kg) 0.64185 5.9736 0.107 Volume (1010 km3) 16.318 108.321 0.151 Equatorial radius (km) 3397 6378.1 0.533 Polar radius (km) 3375 6356.8 0.531  I think we should both make it a goal for the rest of this evening to smoke some Dodo Bird and knock back some brews, and maybe not worry about this Mars stuff too much. Quote
whirlwind Posted January 10, 2004 Posted January 10, 2004 ok i never cared that much in the first place Quote
AlpineK Posted January 10, 2004 Author Posted January 10, 2004 Ya know...I post a cool picture of Mars; then I go off to work. When I come home my nice picture has turned into geek central. Â Quote
whirlwind Posted January 10, 2004 Posted January 10, 2004 what did u expect? 5 pages of praise? Quote
Dru Posted January 10, 2004 Posted January 10, 2004 Â "we come in peace! we come in peace! ak ak ak ak ak!" Quote
Dan_Harris Posted January 10, 2004 Posted January 10, 2004 It was kind of refreshing reading these posts after trying to explain to my wonderful students about some of this basic Mars stuff after getting questions like, "Are there trees on Mars?" This from 15 year olds. The spray is cool too. Quote
skykilo Posted January 10, 2004 Posted January 10, 2004 I'll try to control myself in the future. Â What if we found people when we got to Mars? What would it be like to get some play from a hot Martian babe? Â Quote
Harry_Pi Posted January 11, 2004 Posted January 11, 2004 Hello capitalist! High school physic is boring: impress me. Thank you for allow commie to post. Quote
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