Types of corundum maybe but I think that’s a stretch. Sapphire is (usually) blue Al2O3. Ruby is red Al2O3. Transparent aluminum is Al2O27N5.
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Scotty would be proud.
teft@startrek.websiteto
Technology@lemmy.world•Israel is using an AI system to find targets in Gaza. Experts say it's just the startEnglish
5·2 years agoThe name of the AI is gospel? How can this possibly go wrong?
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Technology@lemmy.world•AI Doomerism: Intelligence Is Not Enough -- “The lack of arms and legs becomes really load-bearing when you want to kill all humans.”English
641·2 years agoWhat happens in the scenario where a super-intelligence just uses social engineering and a human is his arms and legs?
So that’s how we got the Weinermobile.

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Technology@lemmy.world•Elon Musk loses over 400 satellites in 3 months according to data from space-track.org (defense contractor used), and over 1,000 for the lifespan of the companyEnglish
11·2 years agoThere are several effects this could have on Earth and the atmosphere. The presence of these particles could affect how water freezes into ice in the stratosphere, and influence the size of stratospheric aerosol particles. They could also induce salt deposition on aerosol particles, and alter the stratospheric refraction of light.
These may seem like subtle changes, but they could have unintended consequences that we really ought to investigate, the researchers say.
teft@startrek.websiteto
Technology@lemmy.world•Elon Musk loses over 400 satellites in 3 months according to data from space-track.org (defense contractor used), and over 1,000 for the lifespan of the companyEnglish
142·2 years agoAlso vaporizing metals being added to the upper atmosphere isn’t exactly great.
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Technology@lemmy.world•Meta’s new AI image generator was trained on 1.1 billion Instagram and Facebook photosEnglish
4·2 years ago8 inch legs? Eesh.
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Technology@lemmy.world•Will Microsoft drop the TPM requirement for Win 11 once Win 12 rolls around?English
2·2 years agoOh windows 2000 how I miss thee.
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World News@lemmy.ml•Train manufacturer intentionally bricks trains serviced by independent service providers
37·2 years agoSounds like Poland is going to have to nationalize a train manufacturer.
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Technology@lemmy.world•PlayStation keeps reminding us why digital ownership sucksEnglish
13·2 years agoIf you can’t find something on piracy trackers you just need better trackers.
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World News@lemmy.ml•Cop28 president says there is ‘no science’ behind demands for phase-out of fossil fuels
83·2 years agoSultan Ahmed Al Jaber, CBE is an Emirati politician who the Minister of Industry and Advanced Technology of the United Arab Emirates, head of the Abu Dhabi National Oil Company (ADNOC), and chairman of Masdar.
Emphasis mine.
That’s the first line from his wikipedia.
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Programmer Humor@programming.dev•Programmer tries to explain binary search to the police
241·2 years agoYeah, pigs don’t like to be corrected. Or made to look like they don’t know what they’re doing.
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Technology@lemmy.world•Sidestepping GPU ban, Chinese factories dismantle and transform Nvidia RTX 4090 gaming cards into AI acceleratorsEnglish
281·2 years agoMaybe this is why it was so easy to get a PS2 in iraq. That’s crazy, 20 years later and mystery solved for me.
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Technology@lemmy.world•OpenAI's reported 'superintelligence' breakthrough is so big it nearly destroyed the company, and ChatGPTEnglish
42·2 years agoI for one welcome our new
roboticsuper intelligence overlords.
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Technology@lemmy.world•Here's what's happening to ad blockers in Google ChromeEnglish
1121·2 years agoSwitching to what? Firefox. I don’t see the problem here. Install Firefox and forget those monopolistic enshitifying fucks.
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Technology@lemmy.ml•YouTube is reportedly slowing down videos for Firefox users
332·2 years agoThe delay also does not trigger just once; it is reportedly triggered every time YouTube links are opened in a new tab.
This part got me yesterday as I was listening to music. I loaded a new video in a tab and the other tab waited 5 seconds. I thought I had paused it or something but nope, every time you load a new tab it delays all the other tabs by 5 seconds.
teft@startrek.websiteto
World News@lemmy.ml•Israel’s opposition leader calls on Netanyahu to resign over Hamas attack
35·2 years agoHe won’t though. He’ll say something like “now is not the time for changes as we are at war”.







Any corundum without trace elements is colorless. Corundum with trace chemical impurities makes the gems we know. Chromium gives the red to rubies, sapphire has iron and titanium, you can get other colors using vanadium or different ratios. Gems are neat.