this post was submitted on 15 Mar 2024
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[–] companero@hexbear.net 103 points 8 months ago* (last edited 8 months ago) (2 children)

While SpaceX’s reusable rockets have slashed satellite launch costs to US$3,000/kg, some scientists have estimated that an electromagnetic space launch system could drive those costs down to a mere US$60/kg.

China completely invalidating SpaceX's business model would be hilarious. some-controversy

[–] Tankiedesantski@hexbear.net 82 points 8 months ago (1 children)

NASA is banned from working with China, so it would be genuinely hilarious if they were the only group stuck paying $3k per kg.

[–] RyanGosling@hexbear.net 50 points 8 months ago (2 children)

I’m not sure what’s funnier. If China open sources the technology and NASA would have no choice but to switch to it, or they keep it proprietary and force the US to use spacex

[–] Egon@hexbear.net 49 points 8 months ago (2 children)

The funniest outcome is this: They go open source, Elon takes the concept and tries to pretend he invented the tech himself. People call him out for it, but he doubles down claiming he's never even heard of china. It gets built and explodes because he cut corners and did dumb shit. Elon immediately blames faulty Chinese tech. lathe-of-heaven

[–] AbbysMuscles@hexbear.net 31 points 8 months ago

And retroactively blames those shifty [slurs] for stealing American tech that previously was just a series of doodles on a napkin

[–] CloutAtlas@hexbear.net 25 points 7 months ago* (last edited 7 months ago)

Elon tries to build a space trebuchet to compete, the release mechanism gets a bug and slams a $50,000,000 rocket directly into the ground. Blames China and Chelsea Manning.

[–] Tankiedesantski@hexbear.net 28 points 8 months ago (1 children)

I think the funniest outcome would be Elon being forced to try to build a space gun to try to compete.

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[–] Coolkidbozzy@hexbear.net 69 points 8 months ago* (last edited 8 months ago) (2 children)

the answer to every infrastructure problem is high-speed rail

I hope they figure out how to do this with engineless commercial airliners (I know it'll never happen but it would be cool)

[–] Tankiedesantski@hexbear.net 58 points 8 months ago* (last edited 8 months ago) (1 children)
[–] Coolkidbozzy@hexbear.net 52 points 8 months ago (1 children)

Fuck it, I see no reason why a train couldn't be shot between two tracks 100 miles apart

[–] JuryNullification@hexbear.net 37 points 8 months ago

I want to see this as a Dahir Insaat animation

[–] iridaniotter@hexbear.net 26 points 8 months ago* (last edited 8 months ago) (1 children)

Well, you could make a "train" to orbit but your rail would have to be hundreds of kilometers long, dozens of kilometers tall, held up with wires and particle accelerators, and the train would probably just be a single car

Btw this would just accelerate the space plane so it doesnt have to burn as much fuel as otherwise. It's not a literal train into space

[–] HiImThomasPynchon@hexbear.net 46 points 8 months ago (6 children)

It's not a literal train into space

kitty-cri

[–] Tankiedesantski@hexbear.net 24 points 8 months ago (1 children)

Don't listen to them, comrade Xi will make Honkai Star Rail real.

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[–] flan@hexbear.net 43 points 8 months ago (3 children)

i hope this works and doesn't turn humans into mashed potatoes

[–] JohnBrownNote@hexbear.net 56 points 8 months ago

they could test it on billionaires

[–] iridaniotter@hexbear.net 28 points 8 months ago

It's probably not for humans

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[–] ProfessorAdonisCnut@hexbear.net 41 points 8 months ago

CPC Priorities

geordi-no Mass Line

geordi-yes Mass Driver

[–] ComradeSpahija@lemmygrad.ml 40 points 8 months ago (8 children)

...but gommunsiim no innovation!!1!11!111!!

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[–] M68040@hexbear.net 37 points 8 months ago (1 children)
[–] culpritus@hexbear.net 35 points 7 months ago

China is building High Speed Rail To Space!!! curry-space

[–] invo_rt@hexbear.net 35 points 8 months ago (1 children)
[–] Owl@hexbear.net 42 points 8 months ago (2 children)

I couldn't find the cost of this project specifically, but China's total space budget is $12 billion a year.

[–] Assian_Candor@hexbear.net 42 points 7 months ago* (last edited 7 months ago)

Pittance we sent that much to Israel this year

Must be nice to have a good government

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[–] D61@hexbear.net 31 points 7 months ago (2 children)

Which Final Fantasy game am I about to be living in?

[–] grendahlgrendahlgen@hexbear.net 22 points 7 months ago (1 children)

VIII for sure. The cool futuristic society in that one launched stuff to space with a railgun.

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[–] Zrc@hexbear.net 29 points 8 months ago

incredible things are happening in China

[–] Egon@hexbear.net 29 points 8 months ago

This is some raiden-source tier shit (approving)

[–] Assian_Candor@hexbear.net 26 points 7 months ago

This sounds so sick

[–] iridaniotter@hexbear.net 23 points 8 months ago (2 children)

Yup you can tell this is a railroad to space cause the reporting is just as awful as all the reporting on Chinese trains

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[–] Parzivus@hexbear.net 21 points 8 months ago* (last edited 8 months ago) (2 children)

I wonder how they plan to handle the heat generated? Maybe you don't need the same kind of acceleration for a rail launcher than with a rail gun.

[–] ProfessorOwl_PhD@hexbear.net 23 points 7 months ago (3 children)

If they used the same acceleration as a rail gun they'd only be sending bodies to space, not people.

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[–] thirtymilliondeadfish@hexbear.net 21 points 8 months ago
[–] plinky@hexbear.net 21 points 8 months ago (2 children)

It’s not for people or it would be too long (?)

[–] Tankiedesantski@hexbear.net 37 points 8 months ago (2 children)

The article says that the railgun part accelerates the plane to mach 1.7 and then the rocket on the plane fires and it accelerates further.

The Concorde was designed to cruise at mach 2, so that's a very survivable speed if the acceleration on the rail isn't too abrupt, like you said.

[–] appel@whiskers.bim.boats 28 points 8 months ago (1 children)

I think the acceleration is the crucial part, the speed you are going at is irrelevant, just the change in speed

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[–] plinky@hexbear.net 26 points 8 months ago* (last edited 8 months ago) (3 children)

It’s still would be like 1-2 km, if they aim at 10g. And they still need to find another 20 machs from rocket booster.

Doing full railgun with small rockets is more poggers (without humans obv ) shrug-outta-hecks

[–] Coolkidbozzy@hexbear.net 27 points 8 months ago (1 children)

Tests will be carried out at 1.2 mile long low-vacuum track high-speed maglev test facility in Datong, generally used when researching magnetic levitation train technology

Within coming years, the Datong test facility will be extended to 37.2 miles long, to achieve a maximum operating speed of a staggering 5,000km/h.

biiiiig track incoming

from daily mail

[–] Nakoichi@hexbear.net 21 points 8 months ago

That would still be a rough ride for a person, but it could absolutely revolutionize getting construction materials into orbit.

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[–] HelltakerHomosexual@hexbear.net 20 points 7 months ago

There is no space race lol china is the only one actually doing anything

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