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tliltocatl

908 karmajoined قبل سنتين

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Planar maps: an interaction paradigm for graphic design (1989) [pdf]

lri.fr
2 points·by tliltocatl·قبل 3 أشهر·1 comments

Turing Drawings (2012)

maximecb.github.io
1 points·by tliltocatl·قبل 4 أشهر·1 comments

Baochip-1x RISC-V microcontroller

github.com
3 points·by tliltocatl·قبل 4 أشهر·0 comments

Perkin-Elmer Photo Gallery

chiphistory.org
2 points·by tliltocatl·قبل 5 أشهر·0 comments

Rtems DevKitPro/LibOGC Copying of Code Without Attribution

rtems.org
3 points·by tliltocatl·السنة الماضية·1 comments

comments

tliltocatl
·أول أمس·discuss
> If market followed rational logic, you could pre-calculate which stocks will be what price and never lose money.

The fundamentals are unpredictable, so even a perfectly rational planning (suppose such thing could exist) would lose money sometimes. Not in the long run, but long run doesn't matter if a single wrecked ship can wreck you.
tliltocatl
·قبل 4 أيام·discuss
I don't think it's any good for that. It's relatively narrowband and not the frequency you usually have issues with EMC on (5 to 6GHz - unless you are specially transmitting on this frequency you are unlikely to emit anything there).
tliltocatl
·قبل 5 أيام·discuss
"Moore's law" is a marketing gimmick. The real physical law that held for decades is Dennard scaling, which stopped to apply already in 2006 once transistors got too small so short channel effects and gate leakage kicked in.
tliltocatl
·قبل 7 أيام·discuss
Yea, but governance structure can be changed on a political whim. .io is efficiently governed as a gTLD now, even if it is a ccTLD. While .com/.net/.org are generic and governed by ICANN, the registry is VeriSign, a USA-based company, and ICE made it explicit already in 2010 they can seizure these any time they see fit. Back in 2010 it was mostly for genuine law-enforcement ends (whatever these ends justified the means is another story), but with what became of ICE recently, I would not bet on anything.
tliltocatl
·قبل 8 أيام·discuss
Same applies for .com/.net, except it's USA's politics. Which you may or may not consider more reliable. But yea, ccTLD domain hacks are pretty damn stupid.
tliltocatl
·قبل 16 يومًا·discuss
Except NK isn't a hereditary monarchy. One might say "so what, they still have a dictatorial rule by a single family", but it is an important difference: the leader post inheritance isn't governed by a clear set of rules so familial illegitimacy is just irrelevant for politics.
tliltocatl
·قبل 17 يومًا·discuss
A friendly reminder that a 0-day is a vulnerability that wasn't known until after a malicious actor exploited it. If someone publishes a PoC, it is not a 0-day, just a vulnerability.
tliltocatl
·قبل 18 يومًا·discuss
Depends on the application, of course. For "google replacement" they are trying to sell it as - it's absolutely essential, but even then it works like crap. For coding… Maybe it's not so essential? Yea, it would not know about latest libraries, but maybe that's not much of a problem? Then, of course, it is a big question if LLM code generation is worth it at all.
tliltocatl
·قبل 20 يومًا·discuss
Based on what I could find:

They generate the RF on the surface and transmit it down the borehole thru a waveguide, so it's only limited by arching in the waveguide. Since we only need power transfer and don't care about multimode propagation, the waveguide diameter isn't limited, and probably on the larger side to reduce copper losses. And the heat management is provided by blowing argon which also carries abalated rock particulate to the surface.

See the schematics here: the schematic here: https://www.thinkgeoenergy.com/wp-content/uploads/2021/03/mi...
tliltocatl
·قبل 20 يومًا·discuss
Gyrotron isn't quite a maser, more akin to a free-electron (i.e. electron beam) RF source. AFAIR (might be wrong, but based on what I could find there: https://www.thinkgeoenergy.com/wp-content/uploads/2021/03/mi...) they aren't literally vaporizing the rock, rather locally heating it til it crushes into particles that can be blown away.
tliltocatl
·قبل 20 يومًا·discuss
Intel wanted to go full 32-bit with capability-like segments right after 8080 with i432. It took way too much time to design, so they released 8086 as a stair-step to 432. It still took too much time, so they released 286. And when i432 was ready it turned out painfully slow anyway and x86 was completely entrenched because of PC platform so they bite the bullet.
tliltocatl
·قبل 22 يومًا·discuss
It might have worked better if x86 had general-purpose registers where every register could work as a segment. Or maybe just many more segment registers. But with only two data segment registers to play with and quite cubersome (and slow!) loads, most software just chose not to bother.
tliltocatl
·قبل 27 يومًا·discuss
"Self-help nonfiction" have always been a waste of paper. And honestly, most of the time I hear "X was replaced by AI" I find myself thinking "good riddance, but we could drop X altogether and not loose anything of value."

Fiction, on the other hand… Much of fiction's value isn't just the content itself, is that they create a shared language medium. A book might actually be meh (came up with some examples, but then decided to drop it so as not to offend anyone), but the fact that people you talk with have read the same book and understand same references makes reading it valuable. So, it's unlikely to happen, until we delegate all of our communication to AIs, which isn't likely to happen any time soon.
tliltocatl
·قبل 28 يومًا·discuss
Just keep it liquid, that's the point. If it freezes, it bursts the glass, as the OOP says.
tliltocatl
·قبل 28 يومًا·discuss
I wonder if a cease and desist to their legal department would work better?
tliltocatl
·قبل 28 يومًا·discuss
To everyone screaming "this would not work": it would work (with right kind of fluorine rubber) as long as the lamp is attached to the pump. Thermionics (but not CRTs) don't actually need UHV, HV is good enough, so no copper conflat necessary. If you want to seal the tube off - then yes, the tube needs a proper seal and a getter. Afaik, the getter is there to counter slow outgassing of tube internals (virtual leaks) rather than any external leaks.
tliltocatl
·قبل 28 يومًا·discuss
Than you can skip the hollow state part altogether. And any plastic-package parts would screw your vacuum up badly - if it survives sealing and bakeout that is.
tliltocatl
·قبل 29 يومًا·discuss
One thing about gallium/galinstan - it would actually make a descent high vacuum seal as it has lowest vapor pressure of all elements - so it doesn't evaporate. The problem is that it sticks to just about everything that isn't PE/PTFE. Galinstan thermometers use some proprietary coating to make glass repel it.

I was once entertaining the idea of using gallium for an electrostatically or MHD boosted Sprengel pump, but figured out sticking would make it infeasible. And now it's unobitanium too.
tliltocatl
·قبل 29 يومًا·discuss
Incandescent bulbs used dumet/platinite, which is an nickel-iron alloy like kovar except it's turned for a different CTE. This stuff isn't that expensive when mass produced - it's just those who can afford usually borosilicate can afford paying a premium for kovar.
tliltocatl
·قبل 29 يومًا·discuss
If you want a gas discharge tube and not vacuum, you can even drop the coil on the inside: https://hackaday.io/project/194683-plasma-toroid-sky-guided-...

But most hollow-state devices run on either DC or pulses, so coupled inductors wouldn't work.