2,157 karma · joined January 27, 2012
[0] https://www.youtube.com/watch?v=RXJKdh1KZ0w
[1] http://www.rfcafe.com/miscellany/humor/ge-turbo-encabulator....
EDIT: There's quite a lot of controversy convering this area of reseach in the following decades. A more technical overview [2] on the turbo-encabulator's operations is discussed in an article covering Chrysler's tulmultuous efforts to apply it to their automotive line. The short of it is that despite being an impressive leap forward in technology, if mass produced it would generate dangerous quantities of DHMO [3]. It just goes to show how a small unexpected side effect can derail even well researched technical solutions.
[2] http://www.curbsideclassic.com/automotive-histories/automoti...
I think part of it is from the GPU: my GPU memory was marginally smaller than Umbrella's tab's usage once I turn to it (and slowly went down to 95,000k when I left). So maybe it's the little droplets or something.
I think it's part of the worry people have had for ages and ages: what do you do idle? Do you find things to do? Or just stop doing things? Or do you create and/or learn a skill? Do you work harder to leverage it all for power?
BOOK.LANGUAGE.eq("DE")
mean something like Book.Language = 'DE'
in SQL? That's certainly a boolean expression. I've only started reading the manual, though, so it's possible I got the semantics wrong, but I've had SSMS point out to me this sort of thing before.But you gotta give 'em points for mapping the FOV control to the 'seat position' (or something close).
But I fundamentally disaggree that it's less interesting. I'm going to assume you're just jaded by the awesome we're constantly surrounded by instead of just taking the easy, boring interpretation. Even 2D animation is advancing where you wouldn't expect (I found the technical work giving the artists better control on The Paperman surprising [0]). New rendering philosophies, networking algorithms, AI/bots, social integration, all of this leads to a refinement that's well worth the effort.
It took a long, long time to get from oscilloscopes [1] to the Occulus, and hopefully in a couple generations we'll have even cooler stuff. Expect to see demos and then have to wait a while for the hard, brutal engineering work to make it actually usable [2].
For the Occulus, the real win is getting the feedback loop between a just-good-enough-monitor and the accelerometer down to few enough milliseconds the brain can kinda fall for it. Like a cartoon, but for motion feedback. Expect other companies to say "I can do better" and let the races begin. The Occulus is a big deal, and better stuff is just a little bit away.
Don't be jaded! Real cool stuff is in the pipe!
[0] https://www.youtube.com/watch?v=TZJLtujW6FY [1] https://en.wikipedia.org/wiki/Tennis_for_Two [2] http://dougengelbart.org/events/1968-demo-highlights.html
The actual experience is great despite enormous product flaws. I'm thrilled there's so many options coming down the pipe, as that will make the
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/1966000...
I fundamentally dissagree that it was trivial, but I worked on large vacuum systems and feel a bit close to the topic. But I also fundamentally agree that the experimentation was barbaric and cruel. But... I also don't see how we could have worked around it. I hope it's some consolation that they never doubly-exposed the dogs; I'm actually surprised that wasn't attempted.
Unshielded hard vacuum is horrific. The problem isn't that it's awful - that's obvious - but exactly how does it affect the body? (I've sealed a hole with my hand and got a hickey, but I've never been immersed in it.) Even today, studying things in a vacuum is difficult; it's always behind a think layer of material that's hard to observe through, and even with cleverness you're testing through the neck of a bottle or only looking back on data logged by some gizmo. And there are a lot of confounding variables; narrowing the time-to-unconciousness/death was the most critical, and each test batch needed multiple samples to make sure no data was wasted. One note that came out was that it seems clearly better to recompress with pure oxygen; would that fire hazard be worth the risk in space (especially after Apollo 1), or would they need to design a mechanism to temporarily mange it? I could see that argument having a significant impact on the cabin design.
But yeah. We can do better. A damn sight better. We can illuminate and record and monitor so much better. A couple years ago I stuck a 20 dollar pen camera in a machine and captured video - with sound - at such an unbelievably higher resolution and fidelity than what they had eked out at incredible cost; it's downright heartbreaking to think what they could have done today instead. Hell, we could probably now just simulate portions of the effects.
I'd hope the scale of this experiment would never need to be repeated today. We're likely at the point where we can risk learning from accidents now.
Addendum: Here's an interesting clip about a year later.
https://www.youtube.com/watch?v=KO8L9tKR4CY EDIT: `curtis beat me to it: https://news.ycombinator.com/item?id=10819055
I wouldn't pay too much heed to the commentary, since we can be sure the test pilot's survival wasn't miraculous at all - he was repressurized fast enough survival was very likely. But you can see how primitive it was, and how little was understood. That one accident was so useful, simply because the subject was concious for a few seconds and could talk about it.
I'm glad (at least hopeful) we're past that sort of groping in the dark.
EDIT: Whoops, Apollo 1 happened two years later. I remembered it had a full oxygen environment for - IIRC - keeping the astronauts more alert and safer at low pressures. I'd be interested to know if that was informed by the dog/chimp study, and if they only reversed their decision for a full oxygenated cabin after the crew burned alive. These days I just assume all safe industry/procedures came from someone's loss.
There's a really cool idea for a spacesuit that's basically just a fabric wet suit that's just really compressive (via electromuscles or cinched bands or w/e). That way your body gets the ability to hold onto the gas in your lungs without the risk of your lungs attempting to expand out your gut and throat.
It's an interesting idea though: what if you could train your abdomen and chest to compress a lung full of air in a vacuum? Then you just gotta keep your mouth and nose shut somehow. (It'd be really difficult - it'd take a force like trying to inflate a car tire with your mouth. Possible, but seems hard.)
If it helps, every major write-up on the topic talks about what the dogs went through. A high price was paid, but they aren't forgotten nor did they suffer in vain - and most made a full recovery in fairly short order. You can be sure countless lives across space exploration will be saved because we'll know who can be saved and what's needed to bring them back.
But all that takes time to really set in, so you've got a minute or so before you're really hurt. By that time, your real problem is simply that you've stopped breathing, which turns out to be a big deal.
Remember: vacuum is first and foremost an asphyxiant!
(Re asphyxiant, here's my favorite story on the topic: http://www.sciforums.com/threads/vacuum-pockets-and-safety-n... )
In a lot of ways, I think this is a form of faking a HUD for people. We want humans to shine, like there's an OLED display overlay pointing at people or like a thermal imager behind walls. Reflective paint does that really well - at least it makes clothing-shaped blobs hovering in mid-air - but I think the intensity is merely that car lights are bright, so the retroreflection is far brighter than the little LED lights people tend to buy. You need something that a motor vehicle driver considers conspicuous, which is going to be something with the lumen output of a head light or brake light. In the video you linked, the bike's red tail light really isn't really bright enough, but the jacket absolutely is unmistakable. And blinking things really are great, since movement catches attention nicely (so long as bright-vs-dim has enough contrast). The bobbing retroreflecting foot pedals in the clip show they're an excellent tell-tale of a bike on the road.
So to help things along, it's useful to be conspicuous. In overcast, low-contrast weather, I'd love for this stuff for my chaps when it's cold and drizzly.
EDIT: I wonder what the high viz stuff triggers in terms of object collision warnings in the head. Like, perhaps it seems like a sign, and that makes a person double check they're still on the road? I have that sort of knee-jerk check when someone with bright blue headlamps get behind me, since that color in a mirror used to invariably mean police.
There's a really great quote I came across in a comic [0]:
Max: Fear is easy. Fear is cheap.
Instead of fear, we're going to give the people hope.
Sam: Fear vs. Hope. Hardly an even match.
Max: That's because you think of hope as something light
and fragile. My version of hope has calluses and dirt
under the fingernails and isn't past bringing brass
knuckles to a fight.
I like to think there's a sort of grinding optimisim that really gets things done. Where people slog through the hard work, slowly and gradually dragging us to a slightly better future. You can knock a lot down with some FUD conflagration, but there's some stuff that will be lasting. And this article highlights stuff that will - at least - last a couple decades.I wanted to share the story about environmental's efforts to put gas meters on the safety release valves on our large liquid argon dewars, but we thankfully convinced them that accidentally blowing a crater in the plant was a worse OSHA violation than upsetting our local regulators. (An accident in a nearby county with a truck hauling liquid gas dewars resulted in a death by displacing all the air in the intersection with Argon, leading the inert gas to be classified as a dangerous controlled substance that needed to be monitored and metered...)
"Clockwork Rocket" - Greg Egan - First in the Orthagonal trilogy; An alien story where physics is different.
"Seveneves" - Neal Stephenson - Goes great with the recent hard sci-fi space movies.
EDIT: "What-if" - Randall Munroe - Saw this on another list and need to make sure is shows up as often as possible. This is the thing to hand every kid as part of their back-to-school pack.
My comment really does a disservice to the useful comments/questions. Like "why try to build a pipe organ?" which honestly I think we all wanted to ask.
And - full disclosure - I would have totally wasted my chance to ask something meaningful, as I woulda gone full stupid basking in the presence of it.
I think it's entirely fair that he claims on the site that it's the coolest desk in the world. I would love just to see all the things it can do - heck I'd pay for that short video.
Add that a lot of people who work physically hard in that sort of tiring shift work (especially people my parent's age) learn to consider early rising a moral virtue and a badge of worth, and you've got a lot of pressure to hold it up as an admirable standard. It can get pretty silly, to the point that I've seen people promoted for punctuality despite a record of poor performance; factories are different, of course, but America was built on the power of heavy industry, so it's a philosophy that pervades. To wit: even in fields where work spans months instead of hours, getting up daily 'before your competitors' gives you an 'edge'. It's a really odd notion if you look at it closely.
On the other hand, I find the added mild stress of waking early, combined with a ritual (absolutely and especially like making coffee as noted in the article) helps me have an excellent start to the day. I don't usually do that, but I really like it when I do.
Waking early is nice, so long as I'm not horribly sleep deprived to start; or so stressed that I can't fall asleep early.
EDIT: I should note that I'm just skimming the surface here. That industrial timing may really be rooted in how trains had to be critically on-time, which forced plants to be ready or miss the ride, and vice-versa. The whole topic is stressful to read about, but really interesting.