As I understand it, the main difference is that the Falcon rockets are (or are eventually meant to be) much less dependent on refurbishment between launches. The Space Shuttle required extensive and expensive work between launches to the extent that many critics[1] claimed that it wasn't truly "reusable". (IMHO, while the shuttle program definitely didn't achieve its goals, it seems like calling it "reusable" is fair).
As for gliding back: the Falcon booster does not actually achieve orbit-- when the main engine cuts off, it is on a ballistic trajectory back to the ocean. While it may be possible to design some sort of gliding apparatus to "save" a booster on a sub-orbital trajectory, it is (again, as I understand it), much simpler to simply adjust that trajectory via a boostback burn that reverses or slows that trajectory, and to then perform a suicide burn[2] to recover the stage, either on a barge or (on lower orbit missions) back on a land-based pad.
I am not a rocket scientist, nor do I have experience in the space industry-- these thoughts are just based on what I've read following the SpaceX reusability program as closely as I can for the past few years.
Ideally they reach zero velocity the instant the legs touch the ground. There was only one hard landing (that didn't result in a fireball) so far, and the legs are designed to take the remaining speed (they are replaced anyway and not reused).
They also have no other option. Even one engine at lowest throttle (70 %) is powerful enough to lift the almost empty booster again, so they cannot hover (which would make things a bit easier, at the expense of needing more fuel).
I can't find the reference, but I remember reading that the landing is complicated by the fact that even at minimum thrust, with the tanks nearly empty, the ship is so light that even with a single engine, it would accelerate back up after hitting zero velocity. So if the engines are restarted too early etc. it could "miss" the ground!
(If someone can confirm/deny this? I'm seeing approx 28T dry mass, thrust per engine of 66T and min thrust of 70%, but that dated guess work from http://space.stackexchange.com/q/4466/ )
It means that a bunch of people who once thought they were somehow above or apart from politics find that they are not, and that the things that happen in the world constitute news of real interest to hackers. That's growth.
Unless the views that "unite" them are repulsive. If Rice's viewpoints were the polar opposite and we were all jumping on the bandwagon to boycott dropbox because they didn't support torture enough, would that be "growth"?
Of course not.
You don't like Rice's views on this issue, and want to convince people-- including the HN community-- that she was wrong on this issue, and that her views on other issues (warantless wiretaps, etc.) are dangerous for a business like dropbox. Moreover, you don't want to support dropbox now that Rice is a board member. Fine. But to claim that just because we all (or at least most of us) disagree with her views, that in and of itself means that we're "growing" as a community is genuinely dangerous-- because at some point, most of us are going to be wrong about something, and arguing on ideological merit is going to be the only thing that can "save" us. Simply saying that "we all agree, and that's growth" will just ensure that we're all wrong forever.
The integration with OS reinstall works very well, and is pretty seamless from the user's perspective. I used to do two backups-- a local TM backup and a separate cloud backup, but I found it was actually easier to just use Automator to up mount my TM volume once a day, image it, and send that up to the cloud. When my TM volume failed last year, I just pulled the latest image and put it on a replacement drive, and I was back up and running.
TM has had a few problems, but by and large it is one of the quiet successes in OS X, and probably my favorite feature if the OS. Why Microsoft hasn't put something like it in Windows is baffling to me.
I found that just running an Automator script for the "new disk image from selection" command on the root of the drive worked perfectly-- set an iCal event to run that script once a day, and you're done.
Be sure to test this to make sure it restores, but in my case it works flawlessly.
The Normalize on export function in Logic is works weirdly well too, especially considering you have almost no control over it. I almost always leave it on and in 5 years of professional composition work, have only chosen to switch it off once or twice-- and only because it was pushing some audio artifacts to the forefront that I had previously corrected.
No 32-bit plugins is an interesting choice. Logic 9 can be launched in 64-bit mode with a 32-bit bridge that opens/closes based on whether or not you have any 32-bit VST/AU plugins trying to run. I've got a couple of Sonnox plugins that aren't available in 64-bit which is going to keep me off Logic X until they [Sonnox] get their act together.
The drum stuff seems new, but at first glance looks quite gimmicky. As a professional composer, the last thing I want to see is a picture of a drumkit and various performers in the middle of my DAW interface.
Yeah, that's what I mean - we already have the ability to easily create drum kits in Ultrabeat, that just seems like a simple interface for new users. Not sure if it's worth upgrading, personally.
Yes, they almost always control something important. In VST/AU instruments they're often assigned to crossfade volume so that you get a natural tone colour change across the dynamic range.
As for gliding back: the Falcon booster does not actually achieve orbit-- when the main engine cuts off, it is on a ballistic trajectory back to the ocean. While it may be possible to design some sort of gliding apparatus to "save" a booster on a sub-orbital trajectory, it is (again, as I understand it), much simpler to simply adjust that trajectory via a boostback burn that reverses or slows that trajectory, and to then perform a suicide burn[2] to recover the stage, either on a barge or (on lower orbit missions) back on a land-based pad.
I am not a rocket scientist, nor do I have experience in the space industry-- these thoughts are just based on what I've read following the SpaceX reusability program as closely as I can for the past few years.
I do play a lot of Kerbal Space Program, though.
[1] https://en.wikipedia.org/wiki/Criticism_of_the_Space_Shuttle...
[2] http://space.stackexchange.com/questions/10307/what-is-a-sui...