Old Man Posted November 5, 2016 Report Share Posted November 5, 2016 Well, it is a European crater. Quote Link to comment Share on other sites More sharing options...
NuSoardGraphite Posted November 13, 2016 Report Share Posted November 13, 2016 Visual of exoplanets http://www.universetoday.com/131903/princeton-team-directly-observes-planets-around-nearby-stars/?utm_content=buffera6dd6&utm_medium=social&utm_source=facebook.com&utm_campaign=buffer tkdguy 1 Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted November 13, 2016 Report Share Posted November 13, 2016 Work that telescope, baby! tkdguy 1 Quote Link to comment Share on other sites More sharing options...
tkdguy Posted November 14, 2016 Author Report Share Posted November 14, 2016 Work that telescope, baby! Seconded. Quote Link to comment Share on other sites More sharing options...
Old Man Posted November 14, 2016 Report Share Posted November 14, 2016 That is an impressive technological achievement, at a time when my interest in space travel has never been higher. Quote Link to comment Share on other sites More sharing options...
Cancer Posted November 16, 2016 Report Share Posted November 16, 2016 HR 8799 isn't a good long-term investment, though. Quote Link to comment Share on other sites More sharing options...
NuSoardGraphite Posted November 17, 2016 Report Share Posted November 17, 2016 That is an impressive technological achievement, at a time when my interest in space travel has never been higher. I agree. And no one is talking about it because Hillary Clinton locked herself in her hotel room in a drunken rage and our president elect likes to grab the opposite sex by the crotch. Quote Link to comment Share on other sites More sharing options...
Christopher Posted November 17, 2016 Report Share Posted November 17, 2016 Well, it is a European crater. We Europeans are leaving our marks everywhere! I agree. And no one is talking about it because Hillary Clinton locked herself in her hotel room in a drunken rage and our president elect likes to grab the opposite sex by the crotch. I can highly advice this Blog post on why TV News is waste of human effort (and it is not even the newscasters fault): Why TV News is a Waste of Human Effort: One Example Worth a Trillion Dollars — CGP Grey Quote Link to comment Share on other sites More sharing options...
tkdguy Posted November 17, 2016 Author Report Share Posted November 17, 2016 I agree. And no one is talking about it because Hillary Clinton locked herself in her hotel room in a drunken rage and our president elect likes to grab the opposite sex by the crotch. Can we please keep politics out of this thread? I already unsubscribed from the one in the NGD. And I really don't want to stop following this thread, which I started, btw. Netzilla and Spence 2 Quote Link to comment Share on other sites More sharing options...
Christopher Posted November 17, 2016 Report Share Posted November 17, 2016 Can we please keep politics out of this thread? I already unsubscribed from the one in the NGD. And I really don't want to stop following this thread, which I started, btw. The Thread is called "More Space news!". And they just discussed why there was so little news regarding space. Mainly a certain political decision in one of the biggest world economies and Space exploring nations. While I agree that we should not discuss politics at lenght (unless they pertain to space news), you might be a bit over-reacting in this case. Cheers. Quote Link to comment Share on other sites More sharing options...
DShomshak Posted November 17, 2016 Report Share Posted November 17, 2016 This week's issue of The Economist has an article about attempts to design a better space suit for lunar exploration. It seems that moon dust is *really* damaging to current space suits. Dean Shomshak tkdguy 1 Quote Link to comment Share on other sites More sharing options...
Old Man Posted November 18, 2016 Report Share Posted November 18, 2016 Moon dust is damaging to everything IIRC. It's like extremely fine ground glass that, thanks to electrostatics, sticks to anything. The solution, of course, is astronaut hamster balls. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted November 18, 2016 Report Share Posted November 18, 2016 It's all about balls for you, isn't it. Quote Link to comment Share on other sites More sharing options...
Cancer Posted November 18, 2016 Report Share Posted November 18, 2016 He gets his kicks that way. Quote Link to comment Share on other sites More sharing options...
NuSoardGraphite Posted November 21, 2016 Report Share Posted November 21, 2016 Can we please keep politics out of this thread? I already unsubscribed from the one in the NGD. And I really don't want to stop following this thread, which I started, btw. This was less about politics and more about how lame the media is. Quote Link to comment Share on other sites More sharing options...
tkdguy Posted November 21, 2016 Author Report Share Posted November 21, 2016 Fair enough. Quote Link to comment Share on other sites More sharing options...
Christopher Posted November 22, 2016 Report Share Posted November 22, 2016 Climate change is a bit more terestial as far as problems go. But scientists recently found not one, but two ways to combat the greenhouse gasses: Seeweed removes the Methane from Cow Farts almost entirely:http://www.cbc.ca/news/canada/prince-edward-island/pei-cow-farting-1.3856202 And CO² can be turned into Ethanol in one single, cheap, scaleable step: http://www.popularmechanics.com/science/green-tech/a23417/convert-co2-into-ethanol/ Especially as a Energy Storage, ethanol might be interesting here. pinecone 1 Quote Link to comment Share on other sites More sharing options...
NuSoardGraphite Posted November 22, 2016 Report Share Posted November 22, 2016 The EM drive officially passed peer review. Now to test it in space. https://www.google.com/amp/amp.space.com/34797-impossible-space-engine-emdrive-study-published.html Quote Link to comment Share on other sites More sharing options...
Zeropoint Posted November 23, 2016 Report Share Posted November 23, 2016 The EM Drive weirds me out, because if I understand things correctly, non-Newtonian propulsion violates conservation of energy. Still, it would be . . . a very important discovery if it DOES work. Quote Link to comment Share on other sites More sharing options...
pinecone Posted November 23, 2016 Report Share Posted November 23, 2016 It dosen't weird me out, it makes me cheerful. We know for a fact that we do no fully understand the universe, this Might reviel something totally new.. Quote Link to comment Share on other sites More sharing options...
Old Man Posted November 23, 2016 Report Share Posted November 23, 2016 The EM drive officially passed peer review. Now to test it in space. https://www.google.com/amp/amp.space.com/34797-impossible-space-engine-emdrive-study-published.html I hate to be the wet blanket but these people, and all of NASA, should be ashamed for allowing this paper to be published. The data literally doesn't show any thrust signal, and then they say that the thrust signal is being obscured by thermal expansion. IOW their experiment is so sloppy it proves nothing. They even admit to rerunning the experiment until they manage to get a signal by attaching some plastic components to the side of the frustum, and don't even try to explain why that would matter. Extraordinary claims require extraordinary proof, and this isn't even ordinary proof, or proof of anything, other than that the experimenters have preconceived notions about how their experiment should turn out. And this paper follows the preceding experiment where the measured thrust direction was exactly opposite to the thrust from the original experiment. More on the sloppiness here. DShomshak, Netzilla and Cancer 3 Quote Link to comment Share on other sites More sharing options...
tkdguy Posted November 23, 2016 Author Report Share Posted November 23, 2016 Ice-Quake Echoes Could Lift Lid on Oceans within Pluto and Europa Quote Link to comment Share on other sites More sharing options...
Old Man Posted November 23, 2016 Report Share Posted November 23, 2016 Schiaparelli Lander Doomed by Negative Altitude Quote Link to comment Share on other sites More sharing options...
NuSoardGraphite Posted November 24, 2016 Report Share Posted November 24, 2016 I hate to be the wet blanket but these people, and all of NASA, should be ashamed for allowing this paper to be published. The data literally doesn't show any thrust signal, and then they say that the thrust signal is being obscured by thermal expansion. IOW their experiment is so sloppy it proves nothing. They even admit to rerunning the experiment until they manage to get a signal by attaching some plastic components to the side of the frustum, and don't even try to explain why that would matter. Extraordinary claims require extraordinary proof, and this isn't even ordinary proof, or proof of anything, other than that the experimenters have preconceived notions about how their experiment should turn out. And this paper follows the preceding experiment where the measured thrust direction was exactly opposite to the thrust from the original experiment. More on the sloppiness here. Their last tests were done in a vacuum, so no heated air to expand, and they still measured thrust. Thus, why they went ahead with the paper. The peer review process in this case is merely a formality because they are already building a functional prototype to test in space most probably sometime in 2017, so I think these engineers are pretty confident in its potential. It might not work. But there isnt a damned thing wrong with testing to see if it does. Quote Link to comment Share on other sites More sharing options...
Old Man Posted November 24, 2016 Report Share Posted November 24, 2016 What does heated air have to do with anything? And it's not at all clear that they measured thrust, when what signal they did get is so noisy and doesn't match what would ordinarily be expected, and when so little effort was made to rule out thermal effects. All they had to do was put the thing on a balance and turn it on and measure the CG shift. There's nothing wrong with further testing, but only if that testing is going to be way less sloppy than it has been so far. Otherwise it's just going to waste more time and money and not answer anything. Measuring a force in ten-thousandths of a gram is not going to be easier remotely, in hard vacuum, with limited telemetry, after a violent rocket launch. The logical next step is a finely made apparatus in an abandoned salt mine in Nevada, not the hard radiation and vacuum of orbit. Quote Link to comment Share on other sites More sharing options...
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