Joel Levine: Why we need to go back to Mars
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http://www.ted.com At TEDxNASA, planetary scientist Joel Levine shows some intriguing -- and puzzling -- new discoveries about Mars: craters full of ice, traces of ancient oceans, and some compelling hints at the presence, at some time in the past, of life. He makes the case for going back to Mars to find out more. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate. Watch a highlight reel of the Top 10 TEDTalks at http://www.ted.com/index.php/talks/top10
Kommentare
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How long will this plane fly? Can't they make it a weather balloon and fly around collecting data for a much longer time?
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amazing……
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Yes there is liquid water on mars, probably even at any given moment; although it doesn't last long due to the lack of pressure and temperature in the martian atmosphere.
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very inspiring
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If this guy is a decent engineer/scientist, why is is talking in feet and miles?
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Impossible to see. Stop above 10%.
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One of the saving graces of US science is its attraction to foreign students who come to study at good colleges for technical degrees. These students go on to contribute greatly in the all modern scientific fields. American students have no aptitude for "doing" anything. I say this as an american student.
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that hit the spot. it filled in gaps in my understanding of methane plumes.
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This guy is going to get a shock when he discovers all the pyramids past civilizations have built there.
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Well firstly, because they have no knowledge of Science and they don't know about the benefits of scientific research, so they are un-likely to even consider paying for it themselves. Secondly, the rich often pay less taxes due to tax-breaks.
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@HimmiJoe its not about education standards, its about inspiration. inspired kids will push themselves to learn, raising testing standards makes kids hate school. if you want to inspire people, new, ambitious scientific exploration is what we need. the Apollo program inspired the last generation of scientists, but all this generation has to look at are programs being shut down all around them. no more human space program, no more fermilab, no more vision of what humans can achieve.
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The funny thing about his joke "IT WAS ON A TUESDAY" is because Tuesday is called like that after TYR, the Germanic god of war, actually, Tuesday in Spanish, for example, is MARTES, the day of MARS, the Roman god of war. And the airplane he talks about is called ARES, the Greek god of war. (Damn, I'm a nerd!)
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@branboom If that was true, why wouldn't they pay for it voluntarily? In fact, we don't even know if they would, because they have always been forced to pay for the federal space programs. And let me refute the "they voted for it in a free election" argument. No, the people who _pay_ are not the same people who _vote_ . You must understand that a small minority, the people in the upper income levels, pay nearly all tax money. They represent only a small percentage of votes.
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That's actually quite a big plane for what's effectively a space probe. Though I suppose it makes sence when you want something to fly in a not so dense atmosphere. You'll need all the help you can get. It always saddens me how I see these great ideas and projects going on, & still only a small amount of money (in terms of a country's budget, whatever it may be) is ever invested in them. Perhaps we need someone like Carl Sagan to reinvigorate & stress the importance of science space travel
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Why are days of the week so funny :P "It was a Tuesday"...
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@sondano yea but u might have also consider genetic engineering and mutationn development.. :) together thngs will settle I presume.. :)
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nasa is involved with human including child torture experiments mkultra,cathy obrien,duncan ofinioan,aaron mccollum,brice taylor and thousands women/children-no moral limits where scientific status/dictatorship greed is concerned,project paperclip allowed nazi docs were allowed to continue auswich experiments on usa own citizens-irish,scot,native indians,kidnapped children docs pay for-used and died in experiments- child pow s continue in nasa and underground military bases-learn,rescue children
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Why not send balloons? Lots and lots of little balloons.
This works Solar energy will fly for weeks and months without fuel around our land without fuel