Osmium

71 ms·

631.
by Osmium 12y ago
> This must be what [3] refers to. Mix molten gallium with nitrogen at 100 atm, 1000 ˚C. Alternatively, mix gallium with ammonia. Get a powder of GaN, then vapor deposit it into layers. Not quite. If you want something to search for, sea
632.
by Osmium 12y ago
> Or use the (imperfect) GaN crystals to grow incrementally better crystals over multiple rounds? This is exactly what's often done. It's all about scale fundamentally. It's slow to grow crystals, they have to be very high
633.
by Osmium 12y ago
So, the next question, is why are these LEDs blue? And what if we want a different colour? In the crystal, we have two types of particles flowing around. Electrons and holes. Holes aren't 'real' particles, but they still exis
634.
by Osmium 12y ago
Sure. I can give a flavour of some of the issues that people are interested in within the nitrides, but it wouldn't be an exhaustive list... So, to start at the beginning: how do we grow these things? At the heart of every LED is a cry
635.
by Osmium 12y ago
> it just doesn't strike me as an "outstanding contribution to the field of physics" You have to consider it within the context of the intention of the Nobel prize, which is to reward the "invention of greatest benefi
636.
by Osmium 12y ago
Wow, this looks fantastic. Julia keeps on getting better and better. I can't wait to use it for a 'real' project (hopefully that will be soon!).
637.
by Osmium 12y ago
It seems to me that there are a few key players really keeping podcasts afloat (Audible, Squarespace, etc.); I wonder what would happen if the industry would still look so healthy without them?
638.
by Osmium 12y ago
Devil's advocate: most OS X systems aren't running exposed services that could be exploited, and if you were running an OS X server you can always re-compile bash manually for something of this severity (and Homebrew/MacPorts
639.
by Osmium 12y ago
Completely agreed. And, to be honest, I'm consistently surprised at the sheer quality of output the BBC manages, not just in terms of content but technologically too. I know they have a lot of smart people working for them, but I'
640.
by Osmium 12y ago
I believe it's typically the heat sinks/packaging etc. that go with the LED bulbs, long before the crystals themselves do (which are the most expensive part, though they can fail too).
641.
by Osmium 12y ago
Let's hope so. I suppose it makes sense if a single line is a year.
642.
by Osmium 12y ago
I find long-haul cheap flights so miserable that, honestly, anyone who's prepared to do this for the miles I think deserves them. I can't say I'm a big believer in money for its own sake, but if there's one thing I'
643.
by Osmium 12y ago
Thank you for plugging this! Exactly what I was looking for. Agree with the other poster that your pricing should be more prominent; I thought it was $25 at first glance which (naturally) makes one disappointed to see it's actually $
644.
by Osmium 12y ago
Yeah. I have this problem too. I want to upload a ~ 200 GB photo library so I have access to it on the go now that Everpix has shut down, but I can't do it from my main machine because the drive just isn't big enough. Selective sy
645.
by Osmium 12y ago
Yeah, this would be all very well and good if Apple started shipping phones with larger batteries. The fact that battery life per mAh (may be) better on iOS than Android means nothing if Apple keeps on rejecting larger batteries in favour o
646.
by Osmium 12y ago
"but they lack lasting power once you stop playing." This sounds like a good litmus test for me. If you're still thinking about a game many months after you finish it, then it's probably something more than a mere dive
647.
by Osmium 12y ago
I really, really do not understand that website you linked to. I feel like enterprise software is so far out of the realm of my experience that it may as well be another planet. It makes me feel like I don't understand computers anymor
648.
by Osmium 12y ago
Pfffp, dolphins didn't feel the need to invent doors in the first place.
649.
by Osmium 12y ago
There's something to be said for trying to get as much life as possible out of older devices. For not just discarding them because they're 'old' even though they're still fully functional (battery replacements aside
650.
by Osmium 12y ago
This whole concept reminds me very much of a character in an Iain M Banks novel (I forget which) whereby this character had--historically--shown an incredible knack for predicting/analysing future events, but there was always doubt whe
651.
by Osmium 12y ago
I find it fascinating how polarised a lot of the comments are. It's either: * People will complain about anything. Why be so ungrateful? You don't like it; fine, don't listen. * How did Apple ever think they could get away wi
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by Osmium 12y ago
How well would this work for spoken word instead of music?
653.
by Osmium 12y ago
> Her doctors describe these effects as "less than would be expected" Understatement of the century? I wonder, then, what parts of the brain (if any) truly are essential for conscious thought?
654.
by Osmium 12y ago
Despite all the hate running around (and ethics aside), I actually had a listen to it and was pleasantly surprised. It's a pretty solid album. I wouldn't dismiss it out of hand anyway.
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by Osmium 12y ago
> That being said, I'm still waiting for the killer app that makes me want one of these. Haptic walking directions for me. I travel a lot and walk a lot, and to be able to find my way without having to looking at a phone screen woul
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by Osmium 12y ago
> Am I really the only one to think that the Apple Watch is just ugly ? I think build quality will really make or break it here. On paper, it's not that attractive, but if--as an object--it's machined very precisely and out of
657.
by Osmium 12y ago
> "In addition to offering insights on celestial movement, the book rebutted Aristotle, who had maintained that heavenly bodies were smooth and “perfect”; with his telescope, Galileo had also looked extensively at the Earth’s moon,
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by Osmium 12y ago
Advice is fairly standard: don't make your main account an Admin account, give your password out sparingly to apps that ask for it, try to use only sandboxed apps (i.e. from the App Store), don't turn on un-needed services (these
659.
by Osmium 12y ago
Devil's advocate, but why not rename "Random" to "AlmostRandom" instead, and call "SecureRandom" just "Random"? It's not unreasonable for a lay programmer to expect "random" to be
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by Osmium 12y ago
This might be somewhat controversial, but Bertrand Russell has a good introduction to Western philosophy. For something a little lighter, AC Grayling is good.

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