tlb

15 ms·

181.
by tlb 1y ago
The expensive bit isn't the lightning rod itself, but the conductive path all the way to ground that has to handle 10^5 amps.
182.
by tlb 1y ago
DRAM will also normally hold most of its data for 1000x longer than the rated (usually 60 ms) refresh time. This has sometimes been used to recover secrets from powered down computers. The rated refresh time is chosen to give near-zero erro
183.
by tlb 1y ago
Easier to read on a small screen and can save articles & bookmarks for offline. But mostly I prefer it over the browser because every time I go to the browser there's something else there to distract me. I look up things in Wikiped
184.
by tlb 1y ago
If you don't turn off the "Explore feed" or "Year in Review" in the mobile app it finds you.
185.
by tlb 1y ago
It's more like DRAM with a much longer refresh time (60 ks instead of 60 ms).
186.
by tlb 1y ago
What a horrendous crime, to turn a fascinating subject into a boring curriculum to be forced on teachers and children. I've received great intellectual satisfaction from various well-taught subjects. I would rather chop off a finger th
187.
by tlb 1y ago
The pipes analogy gives people a wildly unrealistic idea of the speed of electron movement in a wire. They only move a few mm/s at max current in copper wire. Electrons take minutes to go down the power cable from your PSU to your GPU.
188.
by tlb 1y ago
https://en.wikipedia.org/wiki/Protein_metabolism disagrees: "Dietary proteins are first broken down to individual amino acids by various enzymes and hydrochloric acid present in the gastrointestinal tract. These a
189.
by tlb 1y ago
Geotargeting of ads is essential for local businesses. Banning it would make advertising only practical for national brands. It would be bad for the world if only national brands could advertise.
190.
by tlb 2y ago
If the compiler is using a niche, it should really check every assignment that it's not accidentally the niche. That's still faster than also writing the tag.
191.
by tlb 2y ago
Me too. Thumbnails just appear black. Safari 17.6 (19618.3.11.11.5), MacOS Sonoma 14.7.3 (23H417) It works on Chrome on the same machine.
192.
by tlb 2y ago
Exec doesn't know about shell aliases. Only what's in the $PATH. I liked the shell in MPW (Mac Programmer's Workshop, pre-NeXT) where common commands had both long names and short ones. You'd type the short ones at the p
193.
by tlb 2y ago
Implicit conversions from Foo? to Foo are a major footgun, because the point of returning a Foo? is to have the caller check for failure before assuming there's a Foo to use. Even C++ avoids the implicit conversion from optional<T&g
194.
by tlb 2y ago
Self-driving software also projects scenes into the near future. And they have microphones to hear horns and sirens, and accelerometers and gyros and wheel RPM sensors to detect skidding. The vision can be better or worse than human. Humans
195.
by tlb 2y ago
C and C++ also use 8 bits in most cases. One reason is to support pointers, ie `bool *`. You can get a single-bit bools in a C++ struct, with eg struct foo { bool a:1; bool b:1; ... } but you can't take a pointer t
196.
by tlb 2y ago
I don't know any serious programmer who thinks that, just because each operation is simple, the operation of the whole thing can't be mysterious.
197.
by tlb 2y ago
I enjoy those sensations, presumably because it’s associated with solving problems. I recognize that objectively they’re slightly unpleasant, although nowhere near as bad as other things people learn to enjoy like cigarettes.
198.
by tlb 2y ago
Get a real blackboard made of slate and quality chalk. Much higher resolution than markers.
199.
by tlb 2y ago
How do I interpret the benchmark results showing that it's slower than mergesort? Is that using the very simple implementation in vsort/examples /benchmark.c? Being slower than that while using SIMD and multicore isn't a
200.
by tlb 2y ago
Yes, $65M revenue is a decent success. The miserable failure is bloating their expenses to 5x that.
201.
by tlb 2y ago
When the code is sprintf(stackbuf, "%s", attacker_supplied_input) in 2025, I expect some serious bowing and scraping.
202.
by tlb 2y ago
Well, I need a substantial astigmatism correction too. I've tried combining both -- my prescription distance glasses with drug-store reading glasses over top -- but it's wobbly and limits my field of view to less than a whole big
203.
by tlb 2y ago
I'm in my 50s and about 3 diopters farsighted. I had trouble getting a good prescription for screen glasses. My optometrist insisted that +1.25 was the right correction for desktop screens, but it gave me eye strain. I like my screen a
204.
by tlb 2y ago
When a fault occurs (say a battery fluid leak to the chassis) and is detected, a mechanical relay has to open to disconnect the power from the grid. That can take 200 ms or so, which is a long time to have 400v flowing through you.
205.
by tlb 2y ago
The proximate cause was that the owners didn't put in enough money to keep the site good. The ultimate cause is that there isn't much money to be made advertising to techies, so it's not worth spending much on. It's surp
206.
by tlb 2y ago
That is for Mozilla's services like pocket or MDN, not Firefox.
207.
by tlb 2y ago
Mangroves do. https://en.wikipedia.org/wiki/Mangrove
208.
by tlb 2y ago
Your first bullet point isn't mentioned in either of the links you provide.
209.
by tlb 2y ago
Tokamaks seem to require very precise alignment of the confinement magnets. Is this going to be a lot harder on a rolling, heaving, vibrating ship?
210.
by tlb 2y ago
The best way to invest ethically is to do it yourself. When you give your money to a VC firm to do it, they end up following bogus rules like ESG. When I invest, it's always a mix of wanting the company's product to exist in the w

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