Recent comments in /f/space
Hot-Mongoose7052 t1_j28o5x0 wrote
Reply to comment by Shanrunt in Just back from witnessing a test firing of a rocket motor that my neighbor built by goatharper
My world crumbles before me
Tetbudertruk t1_j28nnba wrote
Reply to What is our current "best guess" about how to observers that entered a black hole on opposite sides would look to each other once they crossed the event horizon? by WittyUnwittingly
You too kxcv##-3353774474748----8---+_8---(7+7+447-
SelectAd1942 t1_j28ng99 wrote
What’s up with the name EROS? Kinky phallic rocket?
omegasix321 t1_j28mpaj wrote
Reply to comment by pgriz1 in What if we kept pursuing nuclear spacecraft propulsion? by rosTopicEchoChamber
None of that sounds like a bad thing. If the AI is smart enough to manage resources better than us, with the end goal of improving human quality of life in mind, I see no problem. Who cares what's running everything so long as things get done and the people are prospering?
Even more so if it can do it in a way that denies resources from its detractors while providing infrastructure to those that allow it to work for them. Visibly improving society as it does so. Effectively shutting down our more violent, power-hungry, and suicidally independent natures without firing a single bullet.
the6thReplicant t1_j28mmkf wrote
Reply to Documentaries on Columbia shuttle? by Worthy_Planet375
The The Challenger Disaster was a great fictionalised TV series including (the then) newly declassified documents about the creation of the Space Shuttle and the Challenger disaster.
William Hurt, as Richard Feynman, is the main character.
glaviouse t1_j28l6sb wrote
Reply to comment by nova9001 in China reveals ambitious plans for Asia's largest optical telescope | The new telescope will have an aperture of 19.7 feet (6 meters) by 2024 while its mirror will be expanded to 26.2 feet (8 m) by 2030. by chrisdh79
I don't think SI was invented by US
to me, it's from the French Revolution, from the need to homogeneize the weights, lengths, ...
many sciencists participated to the construction of this new system
dittybopper_05H t1_j28l6lg wrote
Reply to comment by amitym in What if we kept pursuing nuclear spacecraft propulsion? by rosTopicEchoChamber
Earth orbit to lunar orbit, sure.
But you could also also use them for other things. The engines are about twice as efficient as chemical rockets for solid core designs, and since the fuel is generally hydrogen and no oxidizer is needed, that simplifies refueling, and also means you can loft that much more fuel per launch, because hydrogen is the lightest element, all other things being equal.
But you could also use something like that for maintenance of geosynchronous satellites, something we simply don't do now. And for even higher missions. Imagine being able to service the Webb Space Telescope like we've done with the Hubble Space Telescope. Having a near-Earth tug capable of getting astronauts to the Moon and back would also allow missions like that.
I kind of get the impression that you're not really imagining the possibilities here. Kind of like looking at a Wright Flyer in 1904 and asking "What use is it?", not seeing that something like that just opens the door for further development and that the jobs will be attracted to the application.
Heh, kind of reminds me about how the "killer app" for personal computers back in the early 1980's was organizing your recipes.
In short, if you build it, creepy ghost players will emerge from the maize.
ProjectDv2 t1_j28l5a4 wrote
Reply to comment by hardtanker_101 in China reveals ambitious plans for Asia's largest optical telescope | The new telescope will have an aperture of 19.7 feet (6 meters) by 2024 while its mirror will be expanded to 26.2 feet (8 m) by 2030. by chrisdh79
China is fully capable of making the finest quality of pretty much anything. The reason so much product from China is shit is because the buyers don't want to pay for the top quality. They want to pay the absolute least they can for product that is as close to the mark of "passable and marketable" as they can. It doesn't have to be good, just good enough to sell.
kimthealan101 t1_j28kn82 wrote
Reply to comment by Most-Hawk-4175 in What is our current "best guess" about how to observers that entered a black hole on opposite sides would look to each other once they crossed the event horizon? by WittyUnwittingly
So you don't die. You just stop
DanishWeddingCookie t1_j28k5zt wrote
Reply to comment by Paradox68 in What is our current "best guess" about how to observers that entered a black hole on opposite sides would look to each other once they crossed the event horizon? by WittyUnwittingly
Once you pass the event horizon doesn’t time stop? And wouldn’t that mean all brain function stop as well, such that even if you could see things your brain couldn’t interpret it?
mynameismy111 t1_j28k41r wrote
Reply to comment by nova9001 in China reveals ambitious plans for Asia's largest optical telescope | The new telescope will have an aperture of 19.7 feet (6 meters) by 2024 while its mirror will be expanded to 26.2 feet (8 m) by 2030. by chrisdh79
I know but Im just excited about the
https://en.m.wikipedia.org/wiki/Overwhelmingly_Large_Telescope
which was intended to have a single aperture of 100 meters in diameter.
Instead the biggest in 2027 will be 40 meters
https://en.m.wikipedia.org/wiki/Extremely_Large_Telescope
The observatory aims to gather 100 million times more light than the human eye, 13 times more light than the largest optical telescopes existing in 2014, and be able to correct for atmospheric distortion.
It has around 256 times the light gathering area of the Hubble Space Telescope and, according to the ELT's specifications, would provide images 16 times sharper than those from Hubble.
Author has a big single lens, but man will it be small compared to everything already under construction.
Nearest peer ready 2023 https://en.m.wikipedia.org/wiki/Vera_C._Rubin_Observatory
Directish comparison https://cdn.eso.org/images/screen/elt_giant_optical_telescopes_infographic.jpg
For fun if u got this far: https://xkcd.com/1294/
nova9001 t1_j28k3ym wrote
Reply to comment by glaviouse in China reveals ambitious plans for Asia's largest optical telescope | The new telescope will have an aperture of 19.7 feet (6 meters) by 2024 while its mirror will be expanded to 26.2 feet (8 m) by 2030. by chrisdh79
Funny thing is US invented SI units lol. I don't think people understand what "freedom" means.
glaviouse t1_j28jshj wrote
Reply to comment by nova9001 in China reveals ambitious plans for Asia's largest optical telescope | The new telescope will have an aperture of 19.7 feet (6 meters) by 2024 while its mirror will be expanded to 26.2 feet (8 m) by 2030. by chrisdh79
yes, more or less
US units are based on SI, SI is decimal, so simpler
but, what is the stranger to me is hearing US people saying their system is freedom system, whereas in its name, it's "imperialism" and a testimony of the English Empire
LordGoldenEagle t1_j28j6ov wrote
Reply to What is our current "best guess" about how to observers that entered a black hole on opposite sides would look to each other once they crossed the event horizon? by WittyUnwittingly
Are astronomers going down a rabbit hole with black holes? Every astronomy programme or article bangs on about black holes. To regular folk they are not interesting. Obviously if you are super intelligent they are fascinating and intellectually challenging. But is cosmology getting side tracked by them?
Careless_Implement12 t1_j28iutg wrote
Reply to comment by WittyUnwittingly in What is our current "best guess" about how to observers that entered a black hole on opposite sides would look to each other once they crossed the event horizon? by WittyUnwittingly
One you cross the event horizon, you are traveling faster than the speed of light. The spacetime you occupy is traveling faster than the speed of light.. any information generated would not get from you to the observer next to you because it would all be heading towards the singularity, faster than the speed of light, faster than the speed of causality.
Impossible_Pop620 OP t1_j28iu2u wrote
Reply to comment by Charlemagnea in Black hole question by Impossible_Pop620
I'm with you on that, but this was only a conversation about hypothetical possibilities on something we don't understand, not something I've got my heart set on.
nova9001 t1_j28ip75 wrote
Reply to comment by glaviouse in China reveals ambitious plans for Asia's largest optical telescope | The new telescope will have an aperture of 19.7 feet (6 meters) by 2024 while its mirror will be expanded to 26.2 feet (8 m) by 2030. by chrisdh79
You mean US needs to integrate with the world and use SI units?
nova9001 t1_j28ik99 wrote
Reply to comment by mynameismy111 in China reveals ambitious plans for Asia's largest optical telescope | The new telescope will have an aperture of 19.7 feet (6 meters) by 2024 while its mirror will be expanded to 26.2 feet (8 m) by 2030. by chrisdh79
You know the article is written by the author right? He/she is the one pumping it up. There's only one short sentence where the official announcement was made its really a simple sentence.
SaulsAll t1_j28ica9 wrote
Reply to comment by WittyUnwittingly in What is our current "best guess" about how to observers that entered a black hole on opposite sides would look to each other once they crossed the event horizon? by WittyUnwittingly
I think the information would be severely warped and condensed, though. It's like saying the best way to see an IMAX movies is by shrinking the screen down to the size of a postage stamp. Sure all the info is closer in terms of angular resolution, but discerning individual parts becomes much harder.
Or just the difference between looking at the sky at night versus looking at a tiny section with the Hubble.
[deleted] t1_j28hye2 wrote
Reply to comment by tackleberry2219 in Every planet in the solar system visible in rare "planet parade" by scot816
[removed]
Impossible_Pop620 OP t1_j28hhzq wrote
Reply to comment by SpartanJack17 in Black hole question by Impossible_Pop620
Hmm...looks like I pissed off a s1ngularity
beef-o-lipso t1_j28o77m wrote
Reply to comment by Responsible_Ad_3532 in Shooting Start or??? by Responsible_Ad_3532
Meteors tend to flame out in less than a second or two and they fade in fast and wink out. Seemed like your description was a fastish moving object for a long while. If it was really bright, could have been the ISS. That will be the brightest thing in the sky and moves across in 1 to 5 minutes, usually.