welshbairn Posted January 19, 2020 Share Posted January 19, 2020 Press conference about to start. 0 Quote Link to comment Share on other sites More sharing options...
dorlomin Posted January 19, 2020 Share Posted January 19, 2020 Gotta love a booster rocket going boom (so long as no one is hurt). 0 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted January 20, 2020 Share Posted January 20, 2020 Pretty impressive, and no more than 3.5 G the whole way till splashdown. Think the Soyuz one reached 7G. 1 Quote Link to comment Share on other sites More sharing options...
Newbornbairn Posted January 24, 2020 Share Posted January 24, 2020 (edited) a85KDZd_460svvp9.webm Edited January 24, 2020 by NewBornBairn 0 Quote Link to comment Share on other sites More sharing options...
Newbornbairn Posted January 24, 2020 Share Posted January 24, 2020 When worlds collide 0 Quote Link to comment Share on other sites More sharing options...
dorlomin Posted January 24, 2020 Share Posted January 24, 2020 4 hours ago, NewBornBairn said: When worlds collide Theia and proto-Earth? https://en.wikipedia.org/wiki/Theia_(planet) 2 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted January 27, 2020 Share Posted January 27, 2020 SpaceX about to launch another load of internet satellites and attempting to land stage one and fairings at sea. Aiming for 2.49 our time. Surprised they're being allowed to before they've sorted out the light pollution and the harmful effects on radio astronomy in particular. 0 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted January 27, 2020 Share Posted January 27, 2020 P.S. Too windy, tomorrow 2.28 pm next window. 0 Quote Link to comment Share on other sites More sharing options...
Dee Man Posted January 27, 2020 Share Posted January 27, 2020 I hope they're going to launch one of these Starlinks on Christmas Eve so that little kids can lose their minds when their parents point to them and tell them it's Santa and his reindeers. 0 Quote Link to comment Share on other sites More sharing options...
Herman Hessian Posted January 27, 2020 Share Posted January 27, 2020 1 hour ago, Dee Man said: I hope they're going to launch one of these Starlinks on Christmas Eve so that little kids can lose their minds when their parents point to them and tell them it's Santa and his reindeers. ...particularly if it then explodes in plain view as a huge fireball 6 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted January 28, 2020 Share Posted January 28, 2020 0 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted January 29, 2020 Share Posted January 29, 2020 Looks like about to happen. 0 Quote Link to comment Share on other sites More sharing options...
dorlomin Posted January 29, 2020 Share Posted January 29, 2020 Not really astronomy but a team claim they can make graphene for a few kilojoules a gram. https://news.rice.edu/2020/01/27/rice-lab-turns-trash-into-valuable-graphene-in-a-flash/ If true this could be just about the biggest news of the decade. Graphene is a crazily useful substance. The British team who first synthesised it in quantities got a Nobel in physics for their efforts. The paper making the announcement is in Nature which is the worlds leading journal so there story is credible as far as it goes. Quote . The electric energy cost for FG synthesis is only about 7.2 kilojoules per gram, which could render FG suitable for use in bulk composites of plastic, metals, plywood, concrete and other building materials. https://www.nature.com/articles/s41586-020-1938-0 That would be about 2kWh a kg, and at Uk retail prices of 15p per kWh that would be something like 30p a kg. I assume "there will be more to it that that", but this could really herald a major new industrial revolution. 0 Quote Link to comment Share on other sites More sharing options...
welshbairn Posted January 29, 2020 Share Posted January 29, 2020 Maybe a step towards a practical space elevator. 1 Quote Link to comment Share on other sites More sharing options...
Newbornbairn Posted February 10, 2020 Share Posted February 10, 2020 This is what Andromeda would look like in the night sky if it were brighter 4 Quote Link to comment Share on other sites More sharing options...
keptie Posted February 10, 2020 Share Posted February 10, 2020 14 minutes ago, NewBornBairn said: This is what Andromeda would look like in the night sky if it were brighter 2.5 million light years from Earth. Will humans ever visit our nearest neighbouring Galaxy, it would be amazing to be there and indeed anywhere in outer space if we could we just find a way of travelling insane distances in a reasonable time for us humans. Space is awesome. 0 Quote Link to comment Share on other sites More sharing options...
djchapsticks Posted February 10, 2020 Share Posted February 10, 2020 On 29/01/2020 at 18:19, dorlomin said: Not really astronomy but a team claim they can make graphene for a few kilojoules a gram. https://news.rice.edu/2020/01/27/rice-lab-turns-trash-into-valuable-graphene-in-a-flash/ If true this could be just about the biggest news of the decade. Graphene is a crazily useful substance. The British team who first synthesised it in quantities got a Nobel in physics for their efforts. The paper making the announcement is in Nature which is the worlds leading journal so there story is credible as far as it goes. https://www.nature.com/articles/s41586-020-1938-0 That would be about 2kWh a kg, and at Uk retail prices of 15p per kWh that would be something like 30p a kg. I assume "there will be more to it that that", but this could really herald a major new industrial revolution. That's massively interesting and potentially world changing. I remember reading a few years ago that in the quest for building higher megastructures, that graphene will prove to be a key component once they figure out a cost effective method of producing it. It's the potential of the 'it recycles everything' part that really gets the imagination going, though. It seems too good to actually be true and very much in the realm of Sci-Fi. 0 Quote Link to comment Share on other sites More sharing options...
D.A.F.C Posted February 10, 2020 Share Posted February 10, 2020 It’s crazy to think that Andromeda is so big that even light takes 200,000 years to cross it. 2.5 million light years away so will collide in 4.5 billion years with ours. Thats numberwang type numbers to me. It’s our closest but impossibly far, maybe in a few million years some alien will be watching sportscene? 0 Quote Link to comment Share on other sites More sharing options...
Zen Archer (Raconteur) Posted February 10, 2020 Share Posted February 10, 2020 7 minutes ago, D.A.F.C said: maybe in a few million years some alien will be watching sportscene? Chic Young still won't have retired. 3 Quote Link to comment Share on other sites More sharing options...
RandomGuy. Posted February 11, 2020 Share Posted February 11, 2020 11 hours ago, D.A.F.C said: It’s crazy to think that Andromeda is so big that even light takes 200,000 years to cross it. Worth mentioning homosapiens only appeared 200,000 years ago. If we sat at one side of Andromeda, and the first ever homosapien lit a fire at the other side, we'd only be seeing it now. 1 Quote Link to comment Share on other sites More sharing options...
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