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Comment Off-shore Off-shore Off-shore (Score 1) 246

Those who claim the US benefits by draining the best and the brightest from around the world are doing two things wrong:

1) They bad liars. Everyone knows they just want cheap labor. Just cut the noise already and accept the fact that they may have to send some mangers overseas.
2) Even if they happen to get someone particularly gifted to leave their native land and work cheap in the US, they're ignoring the negative impact this has on those -- usually developing -- economies which need their best and brightest in order to grow their economies to become importers of US goods and services.

Comment Re: drone ship landings require a lot less fuel? (Score 1) 101

I don't need to stand by the rotation theory. However, the 2.5 degrees that the Earth rotates are about equivalent to the downrange distance.

The first stage is going about 1/5 of the target LEO orbital velocity at separation. While you might well model the trajectory as a parabola over flat ground, given the lack of fuel I would expect that SpaceX puts a lot more care into their trajectory. So far I've failed to attract the attention of the person responsible for Flight Club, the most trusted modeling of SpaceX flights, but I'll message him directly.

Comment Re: drone ship landings require a lot less fuel? (Score 1) 101

Well, Alastair, you should probably not get snotty and ad-hominem, unless you want me to comment on how a one-time sci-fi author and the Unix guy at Dish doesn't really have more authority than the random person one might find in the SpaceX group on Reddit.

It happens there are a few people over there who are rocketry professionals, have the math, and have followed SpaceX long enough. So, sure, their opinion can indeed be trusted.

So far, we have a suggestion from one of the lesser folks there that raising the apogee takes advantage of the Earth's rotation. We'll see if we get the attention of the right people.

Comment Re: drone ship landings require a lot less fuel? (Score 1) 101

It seems to be a common misconception that orbital mechanics somehow knows when you are in orbit and does not work otherwise. But that is as silly as saying that relativity only works near light speed. These things always work regardless of speed, it's just that their effects are macroscopic at greater speeds.

Comment Re: drone ship landings require a lot less fuel? (Score 1) 101

Here's an illustration of the boost-back to RTLS trajectory. You can see that it very definitely goes up. And to prove from observation, you can actually see where the two trajectories separate in photos from yesterday's launch. It's a rather dim curl up, and another continuing East, in Jason Ruck's photo and John Kraus's photo.

At the speed of stage separation, they rocket isn't going fast enough to stay in orbit, but it is definitely in the regime where orbital mechanics has a macroscopic effect. If you think about it, this is going to be the case at some reasonable fraction of orbital velocity.

Comment The perspective of a 3D animation professional (Score 5, Interesting) 301

This is just like the way people whined that color film had ruined the medium, and the ones before them who whined about talkies and yearned for the days of silent films.

I started at the NYIT Computer Graphics Laboratory in 1981 and left Pixar in 2000. These days I produce or am on screen once in a while.

While I was at NYIT they weren't story oriented, and thus all you see of them is demos. Pixar, on the other hand, always put story first. We knew that we could not make a film stand up on effects alone.

Today, a good 3D animation house can make absolutely any scene they like. And thus there isn't anything special about doing so. It's there if it needs to be there to tell the story, and not otherwise.

Comment Re:Thanks to (Score -1) 328

people still read slashdot? not even sure why I'm on here right now. hint; I didn't leave because of AC, I left because of the technical inferiority of the platform and the declining relevance of the articles. I liked usenet. I'm even acquaintances with Brian Kantor. I hate web forums. Fuck the web. The web is good for documents. All this ajax web 2.0 shit, fuck it right in the ear. But everybody uses is so I can choose to live under a rock or I can bite the bullet and get on the web. But reddit. kicks. your. ass. up. and. and. down. I am so fucking sick if getting five lousy mod points doled out once in a blue moon which I almost never get the chance to use before they expire because I like to wait until I find an article that I have an informed opinion about. As this became an increasingly infrequent event, I stopped being able to usefully moderate, and I gave up and left. It kicks your ass in pretty much every other way too. To keep slashdot relevant would require a complete platform overhaul and significant revisions to the moderation system. AC trolls are just a symptom of a bigger problem; a shit platform and a shit moderation system.

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