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Comment Re: Thanks to (Score 1) 337

This is why I read at 0 hidden and always have.

It's simple enough for me to ignore Apps!, APK, Moo, GNAA, whatever, but I tend to find that the mix of trolling to considered posts is nowhere near as off balance as usually suggested.

Losing the ability to post anonymously would undermine a core value of Slashdot. How ironic it would be to have a submission fall under "YRO" and know there would be no anonymous posts within... and this comes from a guy that has posted (maybe) twice as anonymous in 15 years. That said, given the state of things at my job, I've seriously been considering it as of late.

Yes, the signal to noise ratio might be frustrating (or humorous, depending on the mood) at times -- but it's an integral part of the experience. AC wasn't a byproduct of bad design, it was an intentional feature at the beginning. I don't think society has evolved to such a point where it has become vestigial. How can it be, there's a Snowden story on the front page right now?

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) 302

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:no such thing as reality television (Score 1) 62

Unfortunately, this is true.

I remember being quite excited about the prospect of some show about a group of mechanics that build end end motorcycles. What I wanted was to watch talented cats build beautiful bikes, what I got was some kind of soap opera.

I'd also love to watch a weekly hour long episode focused on luthiers. Show me the beginning to end process of building a beautifully hand crafted guitar, violin, etc... from picking the wood to testing the acoustics and I'd watch it. Hell, expand it to cover all instruments (even though the Hang Drum is no longer being produced, that would have made an excellent series); but, I know... it'd turn into the same thing: personalities on parade.

Comment The wave of the future (Score 2) 255

In a world of autonomous machines, people and animals are squishy bugs. If this sounds extreme, consider how it is actually the case in the world of automobiles, and how previous to that the risk was horse carriages. We can make devices good at not running over people, but never perfect.

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