greenbit

19 ms·

241.
by greenbit 4y ago
You wouldn't put shielding around an antenna, that kind of defeats the purpose of being an antenna. The thing about circuits that work at GHz frequencies, is that the wavelengths are small enough that practically any part of your circu
242.
by greenbit 4y ago
Wondering about the calculation for stability, whether solar radiation pressure was factored in. Surely something of that scale would behave partly like a solar sail. If the center was off the sun by, say, half an AU it'd seem like gra
243.
by greenbit 4y ago
Iirc the Ring was made of 'scrith', which was probably Protector for what we now call unobtanium.
244.
by greenbit 4y ago
The ads are still fascinating. Makes you appreciate 32G of RAM when you see 16K on sale! for $150
245.
by greenbit 4y ago
You know how the basic node does a weighted sum of inputs, and feeds the result to a non linear function for output? This network exploited the addition operation implicit in that first part, the weighted sum.
246.
by greenbit 4y ago
That's awesome - the network's solution is essentially to convert the input to analog, perform the actual addition in analog , and then convert that back to digital. And the first two parts of that all happened in the input weigh
247.
by greenbit 4y ago
Just like Grandma used to make! Soak 'em in paint thinner, wash that off, half way cook 'em in the frier, then rinse them down with paint thinner a second time before frying them the rest of the way. Mmmmm-MM! Crunchy! Honestly, y
248.
by greenbit 4y ago
There's a weird tribalism baked into academia, isn't there? Thankfully it's not of an adversarial nature, more like garden variety dichotomy. Terminology aside, it didn't seem that the article was trying to drive wedges,
249.
by greenbit 4y ago
The linked article isn't about sets as such. The item could just as easily have been titled The Plight of the Primes or The Anguish of Undecidability There's a bit more going on there than just what's your favorite kind o
250.
by greenbit 4y ago
During my undergrad education in engineering, we were required to include a significant number of 'humanities' courses. In hindsight this was clearly beneficial but even at the time one could see the sense in that. But it struck m
251.
by greenbit 4y ago
My TLDR take-away: Philosophical puzzlement. Nought to do with the likes of sudoku or wordle. But, this is fun. Do we know what we think we know? Maybe not so much?
252.
by greenbit 4y ago
I wouldn't want to live even half as long, if every waking minute I was considering whether I could eat the furniture.
253.
by greenbit 4y ago
And lazy dogs don't come with bags & shovels, accessories are sold separately. On the plus side, you might attract a Quick Brown Fox!
254.
by greenbit 4y ago
Bookmarks, open tabs, screen shots. I hear you. For me, I think it's that I insanely overestimate my free time, always thinking "there's something I'd like to get back to". And about once a month I have to close ove
255.
by greenbit 4y ago
Have seen half a dozen articles about this, all of them sketchy press pieces that leave me wondering. It sure would be nice to see some diagrams.
256.
by greenbit 4y ago
It's one of those journalistic, press-release kind of write-ups, the kind that spend some effort explaining basic concepts in a hand wavy kind of way, before proceding to pitch the main point with yet more hand waving interleaved with
257.
by greenbit 4y ago
Idk if 30 seconds is quick enough. That might be long enough for the bear to decide you make a better tasty snack than potential BFF.
258.
by greenbit 4y ago
The "glow plug" was kind of shaped like a spark plug, but instead of a gap for high voltage arcs, it had a small loop of platinum wire. To start the engine, you had to pre-heat the plug. This entailed attaching a battery, clipping
259.
by greenbit 4y ago
Been there, done that, burned holes in the T-shirt too.
260.
by greenbit 4y ago
Those sure were different times. I recall in the mid 1970s, as a kid no less, being able to go into a pharmacy and buy sulfur or KNO3 w/o any trouble at all. However it wasn't more than a couple years later, when a request for pho
261.
by greenbit 4y ago
Finally get my Extra-class amateur radio license, and get on the air. Got an 'Advanced', which they don't even issue anymore, decades ago and never did anything but renew it every so often. I want to build a low power (5-10W)
262.
by greenbit 4y ago
Perhaps you could test it by asking It what Its New Year's resolutions might be =P
263.
by greenbit 4y ago
Local aluminum will be cheaper, and stonkin' high voltage will be needed to combat the ohmic losses. The 'atmosphere' on the moon is rather extremely dry, so corona losses shouldn't be an issue, you could probably run no
264.
by greenbit 4y ago
Going to need roads for that. Might as well construct rails. A circum-lunar railway! Probably want to build that at 80 degrees latitude or more, the trade off being solar angle vs material costs.
265.
by greenbit 4y ago
And in the dark of night, no less.
266.
by greenbit 4y ago
Wouldn't a tabler be a person who makes tables? =P
267.
by greenbit 4y ago
Yeah, but when you get that termination working, you get to turn to the 4th wall and shout, "It's alive! Alive! Oh, now I know what it feels like to be Woz!"
268.
by greenbit 4y ago
Got a chuckle out of that section - DOS as an RTOS. But yeah, makes sense, about the only thing on the metal besides your application would be the timer interrupt, and didn't they use a DMA channel for dynamic RAM refresh? You wouldn&#
269.
by greenbit 4y ago
Between the caps and the early ROHS solder formulations, the 20-ohs was kind of a low point for electronics.
270.
by greenbit 4y ago
Well, what do we think they actually did, to generate those screens? Could it in fact have been some kind of strangely configured Amiga generating that display, with some odd customizations? What about that weird color palette, did they g

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