Not quite.

If you are at apogee and accelerate, your perigee will be raised. If you are at perigee and accelerate, your apogee will be raised. You can't increase your apogee and perigee at the same time.

If the impulse is in the direction of orbit, then the altitude of your orbit 180 degrees from your current position will raise. If the impulse is against your orbital direction, your height 180 deg away will be lowered. Once you complete an entire orbit (360 degrees) you will pass through your current position again.

If you wish to move to a higher, circular orbit two impulses are required, 180 deg apart.

It may seem counterintuitive, but if something in orbit gets a push that isn’t strong enough to make it totally escape orbit, it will stay in a new elliptical orbit. That new orbit will pass through the point where the push happened, so it will come back through that location again, just with a different speed and direction.

Hacker news is IMO a niche community anyway, and I'd say the crossover between people who built their own PCs 25 years ago, during the golden years of overclocking and hacker news readers is pretty huge actually.

If you don't think this sort of article is a good fit here I don't think you are really in the target demographic anyway.

In short, I my watch has NOT had an easy life. I've made no attempt to protect it or taken it off for anything except charging. There is barely a mark on the screen. A sapphire screen will be a hard requirement for my next watch.

The classic example, is can you shout "Fire!" in a crowded cinema? Should this be illegal in itself? Probably not. But if this causes a panic that kills people in a crush for the exits, then you are very culpable for these deaths.

But even if nothing bad happens, should there be laws against what you did? Saying no is in my mind similar to saying if you shoot at somebody but miss them, did you break any laws?

FWIW, yes, I do support free speech. Very much. But I also recognize you must be responsible for the consequences of what you say, and this leads to some very tricky ethical situations - Should you be held accountable for what could have happened, even if it did not happen?

I'm just a sometime mid-level .net dev, and I immediately recognized her name.

Honestly, it might not be a bad move. X.AI has done some great stuff, Grok is rough around the edges but pretty much at the bleeding edge and it doesn't make a lot of sense for musk to be running two AI camps (Yes I know they are theoretically separate companies...(

1) Orbital velocity is FAST. VERY fast. In KSP orbital velocity for a low orbit is about 2,200 m/s. For earth its about 7,600 m/s 2) An air-breathing engine, by definition can only be used inside the atmosphere. 3) You will struggle to get anywhere close to orbital velocity while still in the atmosphere, due to drag, and heating.

At best, your air-breathing engine will only get you to a small fraction (less than 1/4th) of orbital velocity. Then you will have to a) climb higher, and b) use a different engine to accelerate to the required orbital velocity.

Yes, you will potentially save some weight by not having to carry oxidizer for while you gain that first 1/4 or so of your final velocity. But once your air-breathing engines, and wings and everything else are useless, you still have to carry their weight