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jccooper

3,016 karma · joined June 16, 2011

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jccooper··on SVB in talks to sell itself after attempts to raise capital fail
For customers who are startups, investors, and large tech concerns, FDIC insurance of $250k may not cover the balance. Sure don't want the $2M you have left from your last funding round to evaporate, or even be frozen.
jccooper··on KiCad 7.0
Yep. You can slap a logo on there pretty easily.
jccooper··on “How America took out the Nord Stream pipeline”
It's not very deep. You can buy a tethered underwater ROV rated for 300ft OTS for a few thousands of dollars. Not to mention a camera and an actuator on an anchor. Practically anybody could have done it. Even non-state actors. Hardest part would be getting the explosives in sufficient quantity.
jccooper··on The other Phillips head screwdriver
I get the bits a lot in multi-bit sets, but the fasteners themselves are very rare.
jccooper··on Smaller, cheaper flow batteries throw out decades-old designs
Probably adds two low-pressure low-volume pumps. Which is more, but not a large increase in complexity for a car. The driver's seat probably has more moving parts.
jccooper··on Universal flu vaccine against all known subtypes takes promising first steps
But what does that have to do with vaccines?

An effective vaccine reduces antibiotic resistance pressures, since fewer people are taking antibiotics.

jccooper··on First LNG tanker arrives at Germany's new floating terminal
Ukraine is already running a whole zoo of Western and Soviet artillery, MLRS, IFVs, APCs, trucks, anti-air, UAVs, air-to-ground, heavy and light infantry arms, and more. I'm sure it's less than ideal logistically, but it's being done and I don't see that managing a bunch of Leopards is impossible when they're already feeding a bunch of CAESARs and M113s and whatnot.
jccooper··on Sherlock Holmes will finally escape copyright this weekend
Good enough to convince a jury. Which is an unfortunate criteria, but so.
jccooper··on Ask HN: What to do with a coffee plantation with about 8000 trees?
I don't know anything about your land or crop, but farming tends to be a regional activity so you probably have neighbors in the same business who know at least how the job is usually done. You need knowledge from them. How that shapes up, I dunno. Maybe you want to hire one of them to run your operations; maybe you want to lease it and watch what they do; maybe you want to work for them for a year or two to learn; maybe they'll just tell you what to do each month if you just stop by and chat.

I stand to inherit a farm (of a very different sort: dry plains, mostly growing wheat) and I plan to do the same thing my father does now: lease it to a local.

jccooper··on EsPiFF: An ESP32 in the Raspberry Pi form factor
They also have a built-in ramdisk overlay, which basically solves the problem (so long as you don't need persistence!)
jccooper··on Waymo expands its rider-only territories
They bought DoubleClick with revenues from paid search. (Google's market share was about 50% at the time.) The acquisition certainly helped them establish display marketing, though.
jccooper··on Doors of McMurdo
Mc Murdo is not the ISS. I think it's telling that it's referred to as a "town". Plenty of unauthorized personnel.
jccooper··on Balloon framing is worse-is-better (2021)
Framers use a variety of temporary braces and download to make the building work before the sheathing. (In stick framed buildings pre plywood, those diagonals are permanent, and let into the studs.) It's one of the things newbies can miss, and makes a big difference.
jccooper··on Balloon framing is worse-is-better (2021)
The author was actually looking for "stick framing", of which balloon framing is a particular technique. (The term was originally derogatory, coming from the perspective of the timber framers.)

The image comparing balloon and platform techniques should probably have suggested the existence of a broader term.

jccooper··on FreeBSD on the Raspberry Pi
Continuously reload Adafruit's page from 10:30-10:45am Central Wednesday and Thursday.
jccooper··on What’s wrong with medieval pigs in videogames
In villages they probably managed to mostly keep the pigs under control, but in towns and cities there do seem to have been free-roaming pigs. They were known to eat babies on occasion, and the French, at least, liked to put them on trial for this (and execute them).
jccooper··on FCC Approves 5 Year Satellite Deorbiting Rule
If you're interested in the US market you have to play by these rules. And almost everyone is.

If you're willing to forgo the US market you can jurisdiction shop... though I'd expect the Europeans won't be too far behind.

It's also not a really high bar. Most sats are in a regime where this happens naturally or already have propulsion. It's mostly going to bother SSO birds, and most of them are government owned anyway.

jccooper··on Super-Earths are ideal targets in the search for life
Not quite, but as mass increases relative to Earth, launch vehicles become increasingly ridiculous. Many "super-Earth"s would need something like a Saturn V to get to their equivalent of the ISS, or maybe even their equivalent of Sputnik, depending on exactly how "super".

When you start to get into gas giant mass, chemical launch starts to become really close to impossible instead of just wildly unaffordable.

jccooper··on After years of setbacks, NASA’s SLS moon rocket is ready to fly
Got it in one.
jccooper··on Why rails buckle in Britain
Mirrors have low emissivity. While they accept a bit less heat, they will hold on to it more than something with white paint (which can have pretty good emissivity) and will thus get hotter.
jccooper··on Why wasn't the steam engine invented earlier? Part II
One of the Wrights' enabling technologies was the powered fan that allowed them to make a wind tunnel to refine the airfoil from barely-functional to fairly-useful. They used a small gasoline engine, which enabled them to construct their wind tunnel on a small independent budget. I suppose you could have done that on an institutional level as early as 1750 with steam engines (or perhaps earlier with water power) but mines and mills and factories weren't particularly interested in the problem.
jccooper··on Deepest infrared image of universe
It is a bit suspicious looking, but there's a lot of very red objects that the Hubble image doesn't catch. Presuming that the red colors in the images are the deeper infrared wavelengths (and thus the most heavily-redshifted objects) I would guess that Hubble just didn't have the detectors to see those.
jccooper··on A mysterious cult that predates Stonehenge
I went looking into it, but haven't found a good capsule reference. It's a pretty strong cultural practice (and an old one; references to Classical practices like "the cult of Dionysis" are well-worn) and isn't always specified.

This article "“Cult” in the Study of Religion and Archaeology" in ASMA (https://www.academia.edu/5061036/Cult_in_the_Study_of_Religi...) has a pretty good discussion.

Here's an article from a text book on "Archaeology of Cult and Religion": (https://www.academia.edu/13590600/2005._Archaeology_of_Cult_...)

You can see a working usage in "A Problem Oof Definition: “Cultic” and “Comestic” Contexts in Philistia" (https://www.academia.edu/1868319/A_Problem_of_Definition_Cul...)

I haven't read the books, but there's a couple books covered in this review from AJA on the topic: https://www.ajaonline.org/book-review/619

Modern archaeology makes some odd-seeming linguistic choices to try to avoid implying more than they actually know; part of that is avoiding "religion" in favor of "ritual" and "cultic practices", because "religion" implies a whole lot of stuff that artifacts just can't see.

jccooper··on A mysterious cult that predates Stonehenge
The common understanding of cult (which I would argue is probably "religion I don't like", but that doesn't matter) is not in use here. This is a technical usage in archaeology to refer to religious interaction with place and object... which is basically all prehistoric archaeology can see.
jccooper··on New Arizona law makes it illegal to film within 8 feet of police
Passengers in involved cars are also allowed to film explicitly by the law.
jccooper··on Shakespeare’s plays, sonnets, and poems
It's always sad to me to hear of people reading Shakespeare as "literature". Shakespeare's not meant for reading. (Most plays, indeed, don't read very well.)

Unfortunately, it's also a bit hard to find a well-performed production (even in professional companies), but that's the way to experience Will's works.

jccooper··on The SQLite Code of Ethics
Tell it St Benedict. He's the one who wrote it.
jccooper··on The SQLite Code of Ethics
"This document continues to be used for its original purpose - providing a reference to fill in the "code of conduct" box on supplier registration forms."
jccooper··on Barriers to Business – How cities can pave a path to entrepreneurship
California is not uniquely terrible, but in most of the country little or none of that applies.
jccooper··on Toyota unveils 8.7 kWh battery for residential applications
Powerwall is installable outdoors. Though like all batteries (including this one) it will do better in moderate temperatures.
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