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Everything posted by StrandedonEarth
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totm march 2020 So what song is stuck in your head today?
StrandedonEarth replied to SmileyTRex's topic in The Lounge
Yowza! Johnny better watch out, he's no longer the best that's ever been.... Not sure why this got stuck in my head today. Probably because the randomizer in my phone seems to like it lately.: -
Ouch. Explains a lot though.
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Bad science in fiction Hall of Shame
StrandedonEarth replied to peadar1987's topic in Science & Spaceflight
Yeah, there’s no accounting for “Bad Taste” (yeah, it’s a movie, so bad it’s funny. I think it even got a plug on “The X Files”) -
It’s been awhile since I played Combat Flight Simulator 3, but in it there was a German plane with an anti-ship cannon. I forget what caliber….
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totm nov 2023 SpaceX Discussion Thread
StrandedonEarth replied to Skylon's topic in Science & Spaceflight
Yeah, it might start “porpoising” -
The Impossible battery... how useful would it be?
StrandedonEarth replied to Spacescifi's topic in Science & Spaceflight
A common improvised explosive device in the Star Wars Expanded Universe is gimmicked blaster power packs, or other power source -
Off-planet manufacturing (split from SpaceX)
StrandedonEarth replied to Elthy's topic in Science & Spaceflight
Yeah, but, there are plans and counterplans https://www.forbes.com/sites/jamesconca/2020/03/09/mining-the-ocean-bottom--is-this-a-bad-idea/?sh=752a07697f46 -
Off-planet manufacturing (split from SpaceX)
StrandedonEarth replied to Elthy's topic in Science & Spaceflight
The concept was proven aboard ISS. This is more advancing the concept than commercial production, but this isn't your garden-variety bulk fiber either. This is high performance stuff, worth a premium price. Oh, and that bulk fiber data is for install ready jacketed fiber. What percentage of mass is the sheathing? They'll only be making pure fiber up there, sheathing will be added on the ground (if needed, depending on application, I suppose). At least that would be the logical assumption. I can't seem to Google up the mass/meter of just the fiber, but I'm guessing much less than a tenth of the mass of a cable, never mind the mass of the much-larger commercial spool. That changes your numbers considerably. -
Off-planet manufacturing (split from SpaceX)
StrandedonEarth replied to Elthy's topic in Science & Spaceflight
It seems that zero-gee manufacturing is closer than we think.... https://www.nasaspaceflight.com/2021/09/varda-space-manufacturing/. The plan is to use ISS-proven modules supported by a RocketLab Photon bus. While the specific product for the mission is not confirmed, the ISS has tested optical fiber production with twenty times the performance of groundside-produced fibers. While finding and reviewing this thread, I noticed this: 3D "Printing" is a modern thing, yes. Additive manufacturing, however, is not new. Just look at these beautiful built-up welds on these Saturn V gimbal mounts, done by hand. Same process of adding layer upon layer of material... -
totm nov 2023 SpaceX Discussion Thread
StrandedonEarth replied to Skylon's topic in Science & Spaceflight
One would think so, but may as well check it all at once in case adding one thing perturbs another just a bit -
To the tune of "Soft Kitty" "Playful kitty, painful kitty, Little ball of claws. Scratchy kitty, bitey kitty Ow, ow, ow!"
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U.S. Space Force Discussion Thread
StrandedonEarth replied to Mars-Bound Hokie's topic in Science & Spaceflight
So say we all! -
totm dec 2023 Artemis Discussion Thread
StrandedonEarth replied to Nightside's topic in Science & Spaceflight
Sorry, I can’t resist sharing this here… -
The biggest issue with horizontal takeoff for atmospheric flight to space is getting that huge mass of fuel/propellants up to speed, never mind stopping it if the takeoff is aborted. It would require massive landing gear or a ground-based takeoff carriage.
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I wonder what temperature would be needed to completely vaporize/plasmafy regolith so it can be run through a distillation column (or zero-gee multi-level centrifuges) so the various elements could be separated that way. Actually, once plasmafied, magnetic fields could be used to separate the elements by mass, similar or identical to a mass spectrometer
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Careful what you wish for…. ”Have a nice TRIP, see you next FALL!” as the old schoolyard prank goes… E: Maybe “autumn “ would be a better choice of words when imps are around…
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For Questions That Don't Merit Their Own Thread
StrandedonEarth replied to Skyler4856's topic in Science & Spaceflight
Fun fact: when developing the A4 (which became the V2), rather than develop a new, larger injector for the larger engine, von Braun and crew used eighteen proven injectors. How many injectors can one use on a single chamber before it gets sillly? So yeah, scaling that up would not work -
[New] Space Launch System / Orion Discussion Thread
StrandedonEarth replied to ZooNamedGames's topic in Science & Spaceflight
I agree, it’s ludicrous. But the pork must flow! -
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Mars Rover Perseverance Discussion Thread
StrandedonEarth replied to cubinator's topic in Science & Spaceflight
Explore with Perseveance! https://mars.nasa.gov/mars2020/surface-experience/?drive=0&site=7 -
Bad science in fiction Hall of Shame
StrandedonEarth replied to peadar1987's topic in Science & Spaceflight
Oh c’mon, you may as well complain about Star TrekWars -
And Psyche would be “Tin Roof Sundae” flavoured
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The Moon could be cheesecake? Er, cheesecake chunk?