Viewing profile — jccooper
jccooper
HN member- Joined
- Thu, Jun 16, 2011, 8:53 PM UTC
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- 3,010
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- 1,048 items
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About jccooper
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Recent public activity
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Comment #48882771
There's not much older than the Vasa that is essentially intact. The Vasa is in good enough shape to have been recovered as a ship, and not as a shipwreck or an archaeological dig,…
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Comment #48875433
> The Mycenaean palaces had developed a syllabic script, which we call Linear B, to represent their spoken Greek. This form of writing is entirely lost. In the 8th century, the Gre…
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Comment #47587978
Crew Dragon flew an automated demo flight before flying with crew. It was proceeded by 20 flights of Dragon 1 over 10 years. Starship's heatshield has already been tested full-up h…
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Comment #47495837
Belgian glasses, like wine glasses, leave room for head and aromatics. Belgium is also fanatical about matching the glass with the beer, and Europe has the very sensible pour line …
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Comment #47235614
I don't see that Google cares much about backlinks any more. Seems like it's all about "content" keywords and maybe a little time-on-site. The domain is a huge signal, which is pro…
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Comment #47145117
Industrial buildings are typically built at dock height. Even if they don't do any grading, that would put the building well above any plausible flooding in that area.
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Comment #47067481
There is a problem with the number of dimensions. Even a t-shirt is described best in neck, chest, waist, and you could add several parameters for sleeves and also for heights. Nei…
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Comment #47009268
"Plaster" can be lime, gypsum, or cement, in rough order of historical adoption. Sometimes you even use different types on the same wall; cement rough coat and lime or gypsum top c…
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Comment #46947722
See also the "Ventinari clock": https://github.com/iracigt/ventinari-clock https://www.akafugu.jp/posts/products/vetinariclock/
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Comment #46890549
Because this is not about charity, but about politics. Specifically demonstration with the intention of advocacy. The advocacy falls down when the demonstration is less applicable.…
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Comment #46863508
The idea here is that the economics of launch are changing with Starship such that the "incredible cost" and "overspeccing" of space will become much less relevant. There's a world…
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Comment #46840937
It's a mid-50s bomber. The skin will be easy to replace. Drill out the rivets, rivet on new sheet metal. I don't think it even dragged the wingtips. Might be some complications wit…
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Comment #46151490
I think the point of this headline is that they're not being blamed in this one instance.
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Comment #43666014
The dataset isn't making up fake dependencies.
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Comment #43463664
That's not the sort of "regulation" in "deregulated energy market". Which was always a bad term. "De-integrated" would be better. It's a situation where energy generation and retai…
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Comment #43242526
Much smaller, no atmosphere. You can get a lot closer to it in orbit. Until Apollo 14, the LM would enter a 50,000 ft periapsis on the way to landing. Dunno the exact phasing of th…
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Comment #43118720
Or they're using "surplus" resources (like their backyard, and domestic food scraps) that they'd still have otherwise. Which is something that is not commercially scalable. Unless,…
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Comment #43032893
Cute. But 3/16" is way too large a pilot hole for any reasonable screw. I think a #24 screw, which is the largest size of wood screw, has a 3/16" pilot size... and uses a #4 Philip…
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Comment #43007271
This is impractical in the US as things currently stand; most utilities have a permitting process for a grid tie (anything that backfeeds the grid) and smartmeters are capable of d…
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Comment #42913672
Hugo voters are members of the World Science Fiction Society (who are mostly Worldcon attendees). Which is to say, voters for that are chosen for enthusiasm for the genre, not tast…
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Comment #42856486
The "civil" here is as in "civil aviation". Aviation is broadly either civil or state aviation. Presumably it's derived from "civilian".
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Comment #42807439
They used to keep copies of their really detailed newsletter on the website. Seems to have disappeared. But the last time archive.org saw it is here: https://web.archive.org/web/20…
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Comment #42730803
The former (terminating lines) needs more tracks/platforms at the station, because turning the train around takes more time than stopping and continuing (through running) and turni…
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Comment #42717193
NOTAMs are all over the place for all sorts of reasons. This is a "deal with it" scenario.
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Comment #42717137
ETOPS per se makes no sense for a 4 engine aircraft (the T in the acronym is "twin-engine".) Three- or four-engine aircraft have equivalent engine-out long-range operations ratings…