[-] Bimfred@lemmy.world 16 points 5 days ago* (last edited 5 days ago)

Because if you launch something from Earth, you inherit the Earth's orbital speed around the Sun. At that point, whatever you launched will just continue to orbit the Sun. It takes less energy to accelerate to a solar system exit trajectory than it does to scrub off all of the excess velocity and end up on a trajectory that intersects the Sun.

[-] Bimfred@lemmy.world 16 points 1 week ago

Even the Stream version doesn't require Steam. You can just run the executable. A few folks over on Reddit claim they've given the game to their friends just by copying the files from an external drive.

[-] Bimfred@lemmy.world 15 points 1 month ago* (last edited 1 month ago)

Right now, the Earth is losing mass at about 55 000 tons per year. Yes, losing. About 100 000 tons of hydrogen and helium escapes the upper atmosphere, partially offset by roughly 45 000 tons of dust and meteorites getting scooped up along our orbit.

Considering this has been happening for millions of years, I think we're quite safe from affecting the Earth's mass and orbit within the span of even centuries.

But it's much more likely that the majority of material mined and processed in space will not be coming down to Earth. It's much better put to use in orbital construction, or shallower gravity wells like the Moon and Mars.

You're entirely right that getting to the rocks, and getting the mined stuff to where it's actually useful, are gonna be a problem. Maybe we'll finally get some nuclear thermal engines, cause the shite ISP of chemical rockets is really insufficient for these trips and ain't no one wanna wait on the gravity assists.

[-] Bimfred@lemmy.world 45 points 2 months ago

NASA has the measurements of all their astronauts and Dragon flight suits for Butch and Suni are already made.

[-] Bimfred@lemmy.world 34 points 2 months ago

Crew Dragon has been solely responsible for the US side of ISS rotations for four years, without incident. 8 successful missions, not counting the privately funded trips. Cargo Dragon has been doing resupply missions since 2012.

[-] Bimfred@lemmy.world 10 points 2 months ago

I mean if you want to invalidate my lived experience, sure. Played on release on a 5600X, RTX3070 and 32GB of RAM, 1080p, almost everything maxed out. Open areas on Koboh saw a drop to mid-40 fps, but other than that, I had one hard crash and no bugs I noticed.

[-] Bimfred@lemmy.world 8 points 5 months ago

The SLS is arguable, I'd say. The design requirements were set by the government, but it's not built by NASA. It's built by Aerojet Rocketdyne, Northrop Grumman, Boeing and ULA, all of which are private companies. I don't think NASA has ever built a rocket, actual construction has always been contracted out to private companies. Even the first Atlas was repurposed from an ICBM built by Convair and General Dynamics.

[-] Bimfred@lemmy.world 6 points 6 months ago

Point 1: SpaceX's entire development philosophy is "test early, test often and learn from failures". This is a much quicker pace than simulating every imaginable failure scenario and leads to faster progress in development. With the Falcon 9, that process proved wildly efficient and successful, culminating in a launch vehicle so reliable that it's cheaper to insure a payload on an F9 that already has multiple launches under its belt than a brand new booster. And they're turning enough of a profit to develop the Starship largely on internal funds, seeing how the early Raptor flight tests were before the HLS contract.

Point 2: Just adding, the Raptor engine is the first full-flow staged combustion engine to ever get off a testing stand and actually fly. The engineering complexity of these things is on the level of the Shuttle's RS-25.

Point 3: SpaceX were the only ones with more than designs and mockups to present, and they had a reliable track history from working with NASA on the commercial resupply and crew projects. And I see no problem with awarding a contract to a bid that actually fits into the budget.

Point 4: Multiple options was always part of the plan. NASA wants redundancy, so that if one of the providers runs into problems, the other provider can continue (and perhaps even take up the slack) instead of everything coming to a grinding halt. For a perfect example, look at the Shuttle and Commercial Crew programs. The Shuttle got grounded and since it was NASA's only manned launcher, they had to bum rides from the russians. In contrast, the CC contract was awarded to Boeing and SpaceX. With Starliner's continued issues, SpaceX has picked up the slack and fulfilled more than their initial contract in launches, instead of NASA having to bum rides from the russians again. The initial HLS contract was supposed to go to two providers, until the budget got cut. Blue's bid was always the favorite for the second pick.

[-] Bimfred@lemmy.world 6 points 7 months ago* (last edited 7 months ago)

"In order to fight monsters, we created monsters of our own. The Jaeger Program was born."

[-] Bimfred@lemmy.world 25 points 7 months ago

If Starship Troopers had the player numbers of Helldivers, these articles would be about that game instead.

[-] Bimfred@lemmy.world 17 points 9 months ago

This is what happens when Zura isn't around to contain her!

[-] Bimfred@lemmy.world 64 points 9 months ago

Showing my age here, but the OGs of Doom, Mortal Kombat and GTA turned all the millennial gamers into murderous sociopaths who can't tell the difference between video games and reality. That's after Dungeons & Dragons turned us into murderous sociopaths who can't tell the difference between board games and reality. If I recall correctly, the hoopla around all of that made national news in the States.

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Bimfred

joined 9 months ago