Viewing profile — MgB2
MgB2
HN member- Joined
- Sat, Oct 12, 2019, 2:45 PM UTC
- HN karma
- 195
- Public activity
- 20 items
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About MgB2
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Recent public activity
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Comment #48657159
I'm kind of fascinated by the first diagram on the page. It sits so firmly in the uncanny valley for me and I can't put my finger on why. By itself every part looks ok and normal, …
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Comment #45990956
Yes, they say its HDPE, but then conveniently in all their talk about sustainability, they somehow forget to talk about where HDPE actually comes from. Just that it being composed …
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Comment #45990915
Sure it is. But it's also nowhere near cost competitive and so no one does. They also don't even claim they're using anything else than "normal" HDPE made from ethylene distilled f…
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Comment #45989831
Which is basically HDPE (plastic) foil with limestone filler. And a whole website full of marketing that somehow never mentions that 20% of the material is non-renewable (made from…
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Comment #43578447
The prompt didn't exactly describe Indiana Jones though. It left a lot of freedom for the model to make the "archeologist" e.g. female, Asian, put them in a different time period, …
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Comment #43574927
Idk, the models generating what are basically 1:1 copies of the training data from pretty generic descriptions feels like a severe case of overfitting to me. What use is a generati…
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Comment #40389226
- Germans use commas as the decimal separator, while periods are only used to separate thousands. - As stated in one of the linked mastodon posts, the abbreviation for the Deutsche…
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Comment #39990750
That's basically what beancount does, isn't it? You basically have all the transactions in your plaintext files, and it generates the full ledgers from those on the fly once you wa…
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Comment #36490438
Why gatekeep cycling? As far as I am concerned, anything that gets people out of their cars and onto bicycles is a good thing. If they like it, they might still switch to a normal …
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Comment #36490414
> Bikes that go faster or where one doesn’t need to pedal at all need a license plate and special insurance. And, critically, they aren't allowed on bike lanes but have to be rode …
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Comment #36403006
That's not how LCD Displays work, though.
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Comment #36361045
I'm working on a small program that continually monitors a region of the screen and OCRs and translates the text on screen if there are changes. I want to use it improve my Italian…
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Comment #33503604
The compound presented here is, however, not an organoaluminum compound. Those have Al-C bonds and are indeed very reactive. Aluminum formate has the Al3+-ion coordinated only by o…
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Comment #32442681
PowerQuery can also use ranges inside the same worksheet as data sources. You can define either cell ranges or named tables as data sources and then use them in PowerQuery just lik…
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Comment #32263122
As others have pointed out, LED lights for general lighting (not those RGB strips for accent lighting) use phosphors with very broad emission bands. Unlike fluorescent lamps, they …
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Comment #32263089
Exactly, if you get nice CRI 95 lamps you are unlikely to have a noticeable problem with color rendition. But still beware, the CRI printed on the box (Ra) is kind of flawed since …
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Comment #32263034
For normal lighting LEDs the diode itself usually emits blue light (440-460 nm). Most of the blue photons are then absorbed by the phosphor or phosphors and reemitted at longer wav…
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Comment #28320422
In Germany, you can get your tungsten at Smart Elements
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Comment #28320334
I used to work with tungsten carbide cubes during my PhD thesis. They're used in multianvil high-pressure synthesis. With the right setup you can reach almost 20 GPa of pressure. N…
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Comment #26601207
The Tank Museum (formerly Bovington Tank Museum) is also doing a long-running series of "tank chats" on their exhibits. They don't only give some very interesting details (if you'r…