Recent submissions

Comment · 5 months ago
Also interested
Comment · 5 months ago
I think the relevant issue is you could conceivably have a house with two outlets with opposite phases. Bussing them together in the PSU will then create a short
Comment · 6 months ago
You're so soft
Comment · 11 months ago
>When the electromagnetic wave hits a substance, it splits into separate electric and magnetic waves

Not in any sense I'm familiar with

Comment · 11 months ago
You're right, I didn't read thoroughly enough.

>Everything joined up via a 2-pin and 5-pin connector on the PCB. From there, it was a straightforward matter of measuring voltages and continuity to work out what connected to what: the 2-pin connector was offering 24V DC. The 5-pin connector was what went off to the motor itself. Two of its pins were passing through the 24V DC and ground directly. Two more pins were connected to the potentiometer. The fifth pin was not connected.

Comment · 11 months ago
I don't like the notion of doing speed control by putting a digipot in series with a motor. It worked because the fan happened to be low enough power but it doesn't seem like the author gave thought to the power handling capability of the digipot. If the fan happened to be beefier he's letting the smoke out with this design.

Plus, this is more complicated than just doing PWM.

Comment · 1 year ago
Comment · 1 year ago
That's Blood Meridian
Comment · 1 year ago
Try qalculate. It's great with units and I think will work for base conversions, though I haven't tried that
Comment · 1 year ago
>Unlike nature, which utilizes passive structures to shape sound, most artificial sound control systems require active devices or resonance-based systems.

What's wrong with resonance-based systems? I have to wonder if their side lobes and frequency range would be better if they used resonance

Comment · 1 year ago
We're already at NISQ
Comment · 1 year ago
Of course Ukraine conscripts, they're in a war for their survival. They aren't drafting anyone under 25, by the way, so it's not as dire as you seem to think. And Russia's beating people and throwing them in pits if they won't sign contracts to go to Ukraine, so it's not all roses over there.

It's not at all unreasonable to think that Ukraine can continue ceding ground and shredding Ladas full of mobiks until Putin kicks the bucket, or the Russian economy collapses. A healthy economy doesn't have a 20% key interest rate for 8 months straight, you know. We've already seen one large-scale mutiny in the Russian armed forces, too, so who knows what else might happen?

You haven't proposed any sort of alternative to continuing to arm and fund Ukraine. What's your idea, cut them off and say "good luck?" How does that benefit anyone besides Russia and the minority of Ukrainians who don't want to fight?

edit: if you're thinking that I care about the financial cost of arming Ukraine, I don't. This is the best money we've ever spent and the only time I've respected our MIC, and I wish we were sending more weapons and more financial support. Every time Ukraine spends $100,000 of aid destroying a piece of Russian armor, that's saving us god knows how much in money spent on deterrence.

Comment · 1 year ago
Why, because Russia can grind out a village a week? Ukraine is inflicting disproportionate losses and is supplied to the hilt by Europe, while Russia's moving closer every day to a Potemkin economy.
Comment · 1 year ago
You shouldn't need to prevent gaps entirely. You only need to make sure there are no holes larger than roughly the wavelength of the radiation you're trying to block. Which, for 2.4GHz wifi, is about 125mm. I think what you saw is that a single layer of foil isn't enough skin depths thick to block radiation sufficiently at that frequency.
Comment · 1 year ago
It takes well-calibrated electronics detonating conventional explosives with precise timing to set off a nuclear warhead. The warhead maybe would fizzle but wouldn't detonate because you intercepted. And anyway, it's much better to have it detonate anywhere besides where it was targetted

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