/sci/ - Science & Math » Thread #14104332

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/sfg/ Spaceflight General

Anonymous Sat 15 Jan 00:53:27 2022 No.14104332 View Reply Original Report

Quoted By:

rover edition

previous: >>14100143

Anonymous

Anonymous Sun 16 Jan 2022 01:18:11 No.14108349 Report

Quoted By:

>>14108052
>>14108005 is right. The primary advantage of RDEs comes from their relative mechanical simplicity and lower operating pressures. RDEs are a VERY long way from leaving the lab, much less being used operationally. There was even a paper published recently that called into question whether or not there was even any pressure gain (the primary value of using a detonation wave to do your combustion) occurring in most laboratory RDEs. The Japanese test article that flew on a sounding rocket recently was closer to a gas heater than a working engine. I'm honestly somewhat skeptical if the theoretical advantages will ever pan out in practice, but thanks to their meme status, at least it's easy to get funding for them right now.

t. works on an RDE research project

Anonymous

Anonymous Sun 16 Jan 2022 01:20:03 No.14108351 Report

Quoted By:

>>14108331
Thanks for the link. Maybe, but the Orion bit is still wrong. Even with Gaia proper motions there's no 4th star back then.

Anonymous

Anonymous Sun 16 Jan 2022 01:20:25 No.14108352 Report

Quoted By: >>14108383

Anyone have that pic of the giant room full of long tables with guys working on blueprints for the Saturn V with just paper and pencil?

Anonymous

Anonymous Sun 16 Jan 2022 01:32:55 No.14108380 Report

Quoted By:

>>14107820
I understood it but it was so much methyl shit I forgot 90% of what the book was talking about

Anonymous

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Anonymous Sun 16 Jan 2022 01:35:36 No.14108383 Report

Quoted By:

>>14108352

Anonymous

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Anonymous Sun 16 Jan 2022 01:39:33 No.14108388 Report

Quoted By: >>14108396

>A black hole in the Orion Nebula?
>The Orion Nebula Cluster has long been known as peculiar. Its stars move at a rapid speed, as if the whole cluster were flying apart. If the cluster contained more high-mass stars, the speed of these stars would be easier to understand. But it doesn’t, and so astronomers have wondered why these stars move so rapidly.
>An international team of astrophysicists – led by Dr. Ladislav Subr of Charles University in Prague – set up a computer model of the Orion Nebula Cluster. The model required a new method of dealing with the gas in this region of space and the way it is driven out from the young star cluster by the intensely radiating high-mass stars of the Trapezium. The model showed that, as the gas was being driven outwards, the cluster began to expand. That explained why most stars in the Orion Nebula Cluster move so rapidly. Many of the heavy stars were sling-shot out of the cluster, while some were driven into the center of the cluster and collided with the most massive star there. At some point, this massive star became unstable and imploded into a black hole, with a mass about 200 times larger than the sun.
https://earthsky.org/space/a-black-hole-in-the-orion-nebula/
https://arxiv.org/abs/1209.2114

Anonymous

Anonymous Sun 16 Jan 2022 01:45:22 No.14108396 Report

Quoted By: >>14108400

>>14108388
Interesting. On the same vein, what ever happened to the Event Horizon Telescope? Weren't they imagine SA* right before the pandemic hit? Did they just give up on trying to process the data?

Anonymous

Anonymous Sun 16 Jan 2022 01:47:49 No.14108400 Report

Quoted By:

>>14108396
only delayed

Anonymous

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Anonymous Sun 16 Jan 2022 02:16:40 No.14108470 Report

Quoted By: >>14108472

Anonymous

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Anonymous Sun 16 Jan 2022 02:17:48 No.14108472 Report

Quoted By:

>>14108470

Anonymous

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Anonymous Sun 16 Jan 2022 02:18:50 No.14108474 Report

Quoted By: >>14108562

Anonymous

Anonymous Sun 16 Jan 2022 02:19:19 No.14108478 Report

Quoted By: >>14108494 >>14108497 >>14108567

SLS could actually be incredibly based with two simple and cost effective changes
>replace the SRBs with Raptor powered RTLS advanced boosters
>allow the core to refuel in LEO

Anonymous

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Anonymous Sun 16 Jan 2022 02:19:51 No.14108481 Report

Quoted By:

Anonymous

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Anonymous Sun 16 Jan 2022 02:20:55 No.14108485 Report

Quoted By:

SLS is real*
*11 years later

Anonymous

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Anonymous Sun 16 Jan 2022 02:22:45 No.14108490 Report

Quoted By: >>14108551

>>14107880
Its a Northrup Grumman sat to sat docking test. Its government.

Anonymous

Anonymous Sun 16 Jan 2022 02:24:49 No.14108494 Report

Quoted By:

>>14108478
never gonna happen because of this one faggot senator whose name i wont mention

Anonymous

Anonymous Sun 16 Jan 2022 02:25:43 No.14108497 Report

Quoted By:

>>14108478
three
>paint it white

Anonymous

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Anonymous Sun 16 Jan 2022 02:27:43 No.14108502 Report

Quoted By:

hmmm

Anonymous

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Anonymous Sun 16 Jan 2022 02:28:32 No.14108505 Report

Quoted By: >>14108509 >>14108511 >>14108528 >>14108534 >>14108554

>Climate change
>New viruses
>the Poor are poorer
>the rich are richer

>yeah, let's use our brainpower, our time and our money to put a robot on Mars

Anonymous

Anonymous Sun 16 Jan 2022 02:29:32 No.14108509 Report

Quoted By:

>>14108505
I agree, we should be putting people there instead

Anonymous

Anonymous Sun 16 Jan 2022 02:31:19 No.14108511 Report

Quoted By: >>14108522 >>14108525

>>14108505
An entire island nation might be gone anon. We have only spotty "no casualties" news so far. Do you not care about the plight of the Togan people?

Anonymous

Anonymous Sun 16 Jan 2022 02:32:38 No.14108518 Report

Quoted By: >>14108526

dude expanse lmao
dude space is filled with debris from endless wars

Anonymous

Anonymous Sun 16 Jan 2022 02:33:41 No.14108522 Report

Quoted By:

>>14108511
lol no

Anonymous

Anonymous Sun 16 Jan 2022 02:34:14 No.14108523 Report

Quoted By:

>14108505
based frogposter
gib muh gibs cracker

Anonymous

Anonymous Sun 16 Jan 2022 02:35:30 No.14108525 Report

Quoted By: >>14108552 >>14108566

>>14108511
No. I didn't even know they existed until today. Also apparently you don't care about them either seeing as you can't even address them correctly.

Anonymous

Anonymous Sun 16 Jan 2022 02:35:43 No.14108526 Report

Quoted By:

>>14108518
the Expanse finale was a suitably mediocre ending to a mediocre show

and like the rest of the show, the only redeeming quality was the CGI battles

Anonymous

Anonymous Sun 16 Jan 2022 02:35:57 No.14108528 Report

Quoted By:

>>14108505
>climate change
literally not happening
>new viruses
literally not happening, SARS-CoV-2 doesn't exist
>muh inequality
kys tankie
>>yeah, let's use our brainpower, our time and our money to put a COLONY on Mars
FTFY

Anonymous

Anonymous Sun 16 Jan 2022 02:36:40 No.14108532 Report

Quoted By:

>>14108134
sheer winds

Anonymous

Anonymous Sun 16 Jan 2022 02:37:18 No.14108534 Report

Quoted By:

>>14108505
>spend 50 times more on feeding niggers in Africa than was spent rebuilding Europe in WW2
>spend untold billions per year in subsidizing the Spic-Nig cycle of consumption and obesity
>can't afford to do literally anything else
>surely the problem is NASA

Anonymous

Anonymous Sun 16 Jan 2022 02:40:17 No.14108539 Report

Quoted By: >>14108640

>>14108042
>2026
Not very plausible

Anonymous

Anonymous Sun 16 Jan 2022 02:42:08 No.14108541 Report

Quoted By:

>>14108231
yes easily

Anonymous

Anonymous Sun 16 Jan 2022 02:42:17 No.14108542 Report

Quoted By: >>14108569

>>14108227
pathetic
my grandmother has killed more people

Anonymous

Anonymous Sun 16 Jan 2022 02:43:57 No.14108545 Report

Quoted By:

>>14108273
Boats, they're less red tape.

Anonymous

Anonymous Sun 16 Jan 2022 02:45:43 No.14108550 Report

Quoted By:

>>14108329
more like hairy cunt

Anonymous

Anonymous Sun 16 Jan 2022 02:45:54 No.14108551 Report

Quoted By:

>>14108490
NG=/=government.

Anonymous

Anonymous Sun 16 Jan 2022 02:46:04 No.14108552 Report

Quoted By: >>14108555 >>14108564

>>14108525
Are you trying to say they don't all wear togas as mandated by law?

Anonymous

Anonymous Sun 16 Jan 2022 02:46:40 No.14108554 Report

Quoted By:

>>14108505
I agree. The resources would be better spent building autonomous hunter killer drones to deal with people like this crab bucket poster and the social parasites he claims to advocate for

Anonymous

Anonymous Sun 16 Jan 2022 02:46:49 No.14108555 Report

Quoted By:

>>14108552
No, they do. But that's just coincidence and is unrelated to the similar-sounding name.

Anonymous

Anonymous Sun 16 Jan 2022 02:49:24 No.14108559 Report

Quoted By:

>>14108047
Unironically a good song

Anonymous

Anonymous Sun 16 Jan 2022 02:50:47 No.14108562 Report

Quoted By: >>14108576

>>14108474
How many hundreds of millions do you think they spent on designing and building those extendable platforms to perfectly follow every curve of the orange rocket

Anonymous

Anonymous Sun 16 Jan 2022 02:51:09 No.14108564 Report

Quoted By: >>14108577

>>14108552
Well, they did.

Anonymous

Anonymous Sun 16 Jan 2022 02:51:33 No.14108566 Report

Quoted By:

>>14108525
Nta but as a geologist I couldn't give less of a shit about cultures and civilizations that are destroyed by nature. If it happened in the middle of nowhere with zero casualties it would still be cool. Any deaths brought about by these events are just bonuses because liberals start freaking out, and more often than not find a way to do mental gymnastics to link it to climate change, and demand more funding that goes to geoscience research lol

Anonymous

Anonymous Sun 16 Jan 2022 02:52:01 No.14108567 Report

Quoted By:

>>14108478
>SLS
>simple and cost effective
unironically impossible, it is designed to be as complex and expensive as can be justified by crying about space being hard.

Anonymous

Anonymous Sun 16 Jan 2022 02:52:09 No.14108569 Report

Quoted By:

>>14108542
(She worked on SRBs at Thiokol)

Anonymous

Anonymous Sun 16 Jan 2022 02:54:20 No.14108575 Report

Quoted By:

Staging
>>14108574
>>14108574
>>14108574

Anonymous

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Anonymous Sun 16 Jan 2022 02:55:00 No.14108576 Report

Quoted By:

>>14108562
I was just thinking that. They are custom fit for SLS and have probably been in development since at least 2011 and only recently got installed a few years ago after multi-millions of dollars and hundreds of jobs lol
Meanwhile spacex erects a tower using mexican labor in a matter of weeks. Also reminder that the SLS service tower was built from scratch and cost $2 billion

Anonymous

Anonymous Sun 16 Jan 2022 02:55:17 No.14108577 Report

Quoted By:

>>14108564
kek

Anonymous

Anonymous Sun 16 Jan 2022 02:57:50 No.14108587 Report

Quoted By: >>14108608

You have been visited by the hunga tonga-hunga ha'apai volcano of shockwaves and uncertain death. 20 to 30 cm tsunamis will come to you unless you post "goodbye ocean man" in this thread

Anonymous

Anonymous Sun 16 Jan 2022 03:05:06 No.14108608 Report

Quoted By:

>>14108587
take me by the hand and lead me to the land that you understand, ocean man

Anonymous

Anonymous Sun 16 Jan 2022 03:20:17 No.14108640 Report

Quoted By:

>>14108539
The engine is already assembled and being tested apparently, and the rocket is small with only 500kg to 1t payload capacity, so it's possible.

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