Recent comments in /f/space
Cycleguy57 t1_jd05aw1 wrote
Reply to comment by NerfSchlerfen in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
Imagine seeing the CEO of a major cutting edge firm as the god emperor that is the only thing holding Space X together.
NerfSchlerfen t1_jd04ycl wrote
Reply to comment by Cycleguy57 in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
Imagine caring more about the bullshit someone says on twitter than the cutting edge tech their company develops.
seanflyon t1_jd03xf8 wrote
Reply to comment by GatMn in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
Their current competition is reusable Falcon 9 and the competition for their in-development rockets is Starship.
SimplyZer0 OP t1_jd03sq2 wrote
Reply to comment by Nerull in The effects of Red Shift by SimplyZer0
Actually the ability to transfer information over entanglement was proven by the 2022 nobel prize in physics. And is a huge development in quantum computing.
GatMn t1_jd0365x wrote
Reply to comment by robotical712 in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
What do you mean? Their competition is the falcon 9
Shrike99 t1_jd02lc6 wrote
Reply to comment by didi0625 in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
My point was actually more that the gap between SpaceX and CASC/CALT is proportionally smaller than SpaceX minus Starlink vs RocketLab (or ULA if going by upmass).
By excluding internal launches, you're actually proportionally increasing SpaceX's lead.
SimplyZer0 OP t1_jd02fq9 wrote
Reply to comment by solidcordon in The effects of Red Shift by SimplyZer0
Ah okay this clears alot up for me in terms of short space transmission and shows how i can be used some what useful in current day technology, guessing the biggest limitation would be the speed.
Thanks enjoyed this
Nerull t1_jd023qh wrote
Reply to comment by SimplyZer0 in The effects of Red Shift by SimplyZer0
If there is anything at all important to understand about entanglement it is that it does not transfer information.
Nerull t1_jd01uau wrote
Reply to The effects of Red Shift by SimplyZer0
Why would redshift corrupt the data? It just changes the frequency.
If you watch the carrier frequency of a satellite broadcast using a radio spectrum analyzer as it goes overhead you can watch it drift up and down. Satellite comms work just fine.
[deleted] t1_jczyb7m wrote
Reply to comment by tanrgith in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
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[deleted] t1_jczuwt2 wrote
Reply to comment by Clear-Pear2267 in The Fermi Paradox and the Possibility of Intelligent Extraterrestrial Life by Beginning-Court1946
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Cycleguy57 t1_jczuubc wrote
Reply to comment by seanflyon in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
Yeah, I know. Kinda makes me believe the rumours about how the adults keep him out of the real decision making process at Space X are spot on. I used to admire him, but his big mouth cleared that up years ago.
[deleted] t1_jczshmj wrote
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Due_Menu_893 t1_jczrbvl wrote
Reply to comment by Bipogram in Fallen Astronaut statue and a name plaque left on the surface of the Moon by the crew of Apollo 15 by AlbaneseGummies327
I like how the Mars perseverance rover has an inspiring message in the parachute. https://www.pbs.org/newshour/science/mars-rovers-giant-parachute-carried-secret-message
solidcordon t1_jczr17z wrote
Reply to comment by SimplyZer0 in The effects of Red Shift by SimplyZer0
OK, so you want to receive a signal from alpha centauri.
There is a tiny red shift for light between here and there due to relative motion of the stars.
The sender would need a pretty powerful laser with a wavelength known to the receiver. They point the laser at the earth and send the message. In astronomical terms, this is not a long distance, the red shift is minimal and the receiver knows the red shift involved and the transmission wavelength of the light. The transmission is also consists of billions of photons all in the same wavelength. Sneding signals over interstellar distances would also involve repeating the message over the course of days with error correction bits.
It would not be a problem to filter out background noise over that range and correct for the minimal red shift.
As long as you are using a highly directional transmitter and know where your receiver is going to be when the signal should arrive, this works fine for distances of many thousands of lightyears. The transmitter power has to be increased to overcome signal attenuation over the distance. The next big problem would be stuff getting in the way. That's unlikely to be a problem under ranges of 100 light years, maybe up to thousands because space is big and mostly empty.
SimplyZer0 OP t1_jczp5pk wrote
Reply to comment by solidcordon in The effects of Red Shift by SimplyZer0
Okay so you could simply just translate the signal and reciece the data.
a bit like our brain flips the image produced from our eye.
The problem is signal strength.
Okay so now i also have a very basic understanding of quantum superposition and quantum entanglement.
Schrodingers cat explains this very simply. In saying you can have a state that is both one or the other.
Or a 1 or a 0 in binary for example.
Until it is observed it can remain in both states.
But when it is observed it becomes 1 or the other.
Superposition and entanglement was also proved in 2022 nobel prize
If you could have computers that could read information in a quantam state would that fix the issue all together. The issue being data transfer at incredibly long distances in space (4.3 light-years)
[deleted] t1_jcznk2d wrote
Reply to Where can I find good space videos? by lipncigs
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coffeesippingbastard t1_jczmdio wrote
Reply to comment by ESF-hockeeyyy in Fallen Astronaut statue and a name plaque left on the surface of the Moon by the crew of Apollo 15 by AlbaneseGummies327
To note- they didn't list nationalities of the names. Nor did they group the names together by mission. It was an alphabetical list.
solidcordon t1_jczm9qb wrote
Reply to The effects of Red Shift by SimplyZer0
When a signal is redshifted, the redshift will only become problematic for reception if the transmitter is accelerating away from the receiver at a (currently) unachievable rate or varying rate. (as long as your receiving antenna is capable of picking up the redshifted wavelength of the signal).
Varying rate / high acceleration could be factored in to reception with a wide enough spectrum receiving array.
A more significant problem is signal attentuation over the large distance, where the signal strength at the receiver is around the same magnitude of the background noise picked up.
Red shift is "not that strong" for the velocities we've achieved so far.
boundegar t1_jczm61f wrote
Reply to The effects of Red Shift by SimplyZer0
However, the red shift would be extremely small. Any realistic velocity would be a tiny fraction of the speed of light.
Also, light and radio are the same stuff - just a different frequency
[deleted] t1_jczl64l wrote
Reply to comment by reddit455 in The effects of Red Shift by SimplyZer0
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Photon_Pharmer OP t1_jczkyjk wrote
Reply to comment by ChunkyFart in Moon Shadow Over Jupiter by Photon_Pharmer
Ayeee Ooo
arcosapphire t1_jczkhb3 wrote
Reply to comment by MouthfeelEnthusiast in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
It's because he has the technical knowledge to focus on technical aspects. He likes designing rockets, he's happy to get involved with that process and he doesn't make a mess of it.
With Twitter, he doesn't know a damn thing about software architecture at that level or how to manage a social media site. There is no lightning rod to occupy his attention. His interest is literally just in getting to say what he wants and making people read it. And he wasn't part of building Twitter up to what it is. He simply joined when it was already a working thing; anything he does is going to make it worse.
[deleted] t1_jczjy66 wrote
Reply to Moon Shadow Over Jupiter by Photon_Pharmer
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NerfSchlerfen t1_jd05rod wrote
Reply to comment by Cycleguy57 in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju
Difference between our two comments is no one is doing the latter. He's also not the CEO so something tells me you don't know shit about the situation.