Recent comments in /f/space

dusty545 t1_jd0q15t wrote

Reply to The effects of Red Shift by SimplyZer0

The data isnt corrupt if you can account for the shift in your processing and playback.

Satellites have to correct for doppler shift when they process signals.

0

left_lane_camper t1_jd0g65d wrote

Reply to comment by SimplyZer0 in The effects of Red Shift by SimplyZer0

Unfortunately, quantum entanglement transmits no information and cannot be used directly for telecommunication.

It can, however, be used to help with encryption, which in turn aids (conventional, light speed or slower) communication.

EDIT: I see below someone already mentioned this and you responded to it. Unfortunately, the NCT is still entirely preserved with the work that the 2022 Nobel Prize in Physics was awarded for, though I have seen this mis-representation in popsci articles before. Violations of Bell's inequality are related to, but not equivalent to, violations of the NCT and demonstrating a violation of Bell's inequality is not the same as demonstrating a violation of the NCT. Indeed, the NCT is entirely compatible with those results and remains entirely unchanged by them.

1

Kindly_Blackberry967 t1_jd0fgx8 wrote

Reply to comment by arcosapphire in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju

You go tell a bunch of young engineers that they will have to work grueling hours to work on rockets that land themselves and bringing people to Mars.

Then tell them that they will have to work grueling hours to make people pay for a blue checkmark on Twitter.

You will get wildly different results, and Elon's spent too much time in the former to think the latter would be any different.

5

Anonymous-USA t1_jd0c7m7 wrote

Reply to The effects of Red Shift by SimplyZer0

Light and radio waves are all energy within the electromagnetic spectrum and differ only by radiating frequency.

Transmission over different cables and wires and space are a matter of convenience and using carrier materials that won’t dampen the desired frequency or power. For example, as you know, light can escape the mesh on your microwave oven but not the microwave energy itself. And materials that block light waves won’t block X-rays (though bone will block both, gamma radiation must be blocked with lead or higher density material). Etc. So different mediums can affect the signal. But space is mostly a vacuum.

Visible light can and is shifted down to microwave and, indeed, radio waves too. The greater the relative speed difference the greater the frequency shift.

0

Decronym t1_jd0a33h wrote

Reply to The SpaceX steamroller has shifted into a higher gear this year by returnofjuju

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

|Fewer Letters|More Letters| |-------|---------|---| |Roscosmos|State Corporation for Space Activities, Russia| |ULA|United Launch Alliance (Lockheed/Boeing joint venture)|

|Jargon|Definition| |-------|---------|---| |Starlink|SpaceX's world-wide satellite broadband constellation|

^(3 acronyms in this thread; )^(the most compressed thread commented on today)^( has 17 acronyms.)
^([Thread #8707 for this sub, first seen 20th Mar 2023, 22:10]) ^[FAQ] ^([Full list]) ^[Contact] ^([Source code])

4

JuliusOppenheimerJr t1_jd09wfp wrote

Reply to Nasa’s new science chief Nicola Fox: ‘I grew up starstruck by space’ by Sariel007

I think we should not set a difference between the fact the director of NASA is a man or a woman. The director is at his post becuse of his experience, talent and because we think he is the best person to fit for the job. People should not be amazed by the fact Fox is the 2nd woman to be director of NASA, but they should instead look at the great things she did as a director.

4

NerfSchlerfen t1_jd097tq wrote

Reply to comment by Cycleguy57 in The SpaceX steamroller has shifted into a higher gear this year by returnofjuju

Whoops you're right hahaha. Anyway countless spacex insiders will tell you that Musk's genius is in large scale aspects of rocket design and industrial engineering. Iterative design, vertical integration, part deletion and reusability are all concepts he has pushed extremely hard for at spacex, and these have been huge contributors to the company's success. Anti vax bullshit on Twitter doesn't negate that IMO. It might for thd average person or celebrity, but when someone has concrete achievements under their belt they should be judged on that. I don't worship him like you seem to think, I see his flaws and am absolutely relieved there's an adult running the show at spacex, but he is clearly integral to the company's meteoric rise.

24