“point in this direction and fire the engines” becomes a pain because, say you’re constantly rolling, and you need to change the direction your long axis points. What thrusters do you fire in what combination to steer the ship? Or do you stop the roll, maneuver/use your telescope/dock/whatever, then start rolling again? So now you’ve got to deal with gravity starting and stopping variously throughout the journey.

according to the hohmann transfer orbit

you only do one burst at the beginning of the journey, then drift for 6 months before entering the atmosphere of the target planet to slow down.

So there’s 6 months where you don’t need to fire any engine. My plan is to first do the acceleration burn, then install solar panels on the outside of the ship (attach them via some kind of cord and cable) they fly outward due to centrifugal force so they get constant sun exposure, and then put the ship into rotation. So you don’t need to do any work on the outside anymore, until you’re shortly before landing, then you stop rotation, get in the solar panels, enter the atmosphere, do landing burn, and land.

yeah 200 mbar of oxygen should be fine, also 0.3g if we’re gonna land on mars eventually we might as well get used to the gravity level.

lol you’re right actually :p

I did the calculation somewhere else in this thread, the outer walls of the spaceship (diameter 9m) would rotate with 24 km/h, so if you run really fast, you can outrun the rotation and start to float.

Edit: a healthy adult should be able to sprint 100 m in 15 seconds, which is precisely 24 km/h. Source.

although people can eventually adapt to higher rates after incremented, prolonged exposure

🤨️ we’re talking 6 months travel time here, what do they mean by “prolonged exposure”

actually i have been, and i have attributed it to the device not providing consistent centrifugal forces. instead, gravity interferes and makes it inconsistent. which would not happen on a spaceship.

I get your sentiment but that’s exactly why we need space colonization.

There is a thing called translatio imperii which means that empires aren’t created nor destroyed, they just move from one location to the next, always on the frontline of humanity.

If we don’t get spaceflight, the US will stay an imperial entity for eternity. Only if space colonization succeeds, mars can become the next empire which means that the US stops being one, interestingly.

Spaceflight creates jobs.

I think i understand why you feel that way, it happens to me constantly. Since there is already so much hype about this, you don’t need to hype it as well. Enough hype already.

Basically, there should always be attention on every launch, but it’s not necessary that everybody obsesses over every launch. Only that somebody does. Since so many eyes are watching this mission already, you don’t feel any need to spend your time on it as well.

what is this data based on?

ok so i did some calculations:

If your ship is 9 m in diameter (just chosen at random, not because Starship is by chance 9 m in diameter)

that means x = r*cos(omega*t) and x’’ = r*omega^2*-cos(omega*t) = 1g for t = 0 implies r*omega^2 = 10 m/s², r ≈ 4.5 m, omega ≈ 1.5 rad/s

so the ship would have to rotate with roughly 0.24 rotations per second or 14 rpm. seems doable to me. the outer walls would move with 6.7 m/s or 24 km/h.

i think that would be so much fun!

interestingly bigger ships would have to rotate faster than small ships to achieve 1g btw

this is due to smaller ships having a larger curvature so less velocity is needed

edit: no wait i just did the maths again and you’re right. smaller ships need lower absolute velocity of the outside walls, but angular velocity is higher.

they’re not using raw sodium but obviously mixing it with other chemicals. so it’s not relevant.

wouldn’t the increased weight due the battery be partially compensated by a more lightweight motor? electric motors are significantly simpler and less heavy than ICE motors.

the chinese invented gunpowder centuries ago

but what if you’re actually a slave? forced to work each day anew, with no memory of the previous day. i wouldn’t call that “your infinite new realities” because those realities aren’t really yours, as they don’t provide you a place for you at all.

What do you mean “time loop”? i know i was born around 2000, now it’s 2026 => at least 26 years have passed.

Idk i don’t think feeling “valued” is what it’s about. If you mean by that, what price tag my employer puts on me, and how much money they’re willing to pay me, well idk.

Is life really about being valued? By who? And who are they valued by, in turn? Is it all a big circle jerk? Where does value come from?

just generic engineering, like tempering with wood and metalworks (welding) and also soldering for electronics and discussing the state of software, there’s a linux cafe in the same building where we offer to install linux for commoners who can’t/don’t want to do it themselves. to help them move away from micros*ft.