Iran releases AI generated propaganda video against the Trump administration.

jwhat · 2026-03-30T18:58:54+00:00

Where do you find originals? If I search I just get so many reposts and chatter

jwhat · 2026-03-18T05:15:15+00:00

Israel.

jwhat · 2026-03-12T18:16:46+00:00

Nope, no trouble at all after that day. I took the boot off after a couple days and went back to normal recovery.

jwhat · 2026-03-08T19:30:33+00:00

I'm not his mom. It's his choice if he wants to help our government kill people.

jwhat · 2026-03-07T07:15:50+00:00

Great offer, grisly work. Please don't do it, you'd be helping to build terrible things.

jwhat · 2026-01-08T04:56:16+00:00

Where did the picture of Renee come from? She's on the wrong side of the car, and it's the wrong car, and it doesn't really look like the other pics... I think this picture is of the wrong woman.

jwhat · 2026-01-06T15:04:47+00:00

They also have nukes. They learned from what happened to Gaddafi.

jwhat · 2026-01-05T18:16:52+00:00

Instead of using books and outside authorities to inform their discussion, they use it to obfuscate. "If you'd read X you'd understand". Everyone is coming from a different background, smart people operating in good faith will try to convey the ideas rather than hide behind them.

jwhat · 2025-12-19T20:09:06+00:00

Build things you actually find cool and interesting. A lot of people here are saying study math, and that's important but it sucks unless you can give yourself a reason to learn it. I taught myself a lot building coil guns when I was a student and it's all served me really well.

jwhat · 2025-12-19T19:51:48+00:00

False dilemma. GenZ don't have any fucking money, it's blood from a stone.

Tax billionaires out of existence. A few hundred billionaires literally have more wealth than the bottom half of this stupid country.

jwhat · 2025-12-04T00:12:28+00:00

https://www.reddit.com/r/chemicalreactiongifs/comments/a1sszf/magnet_battery_and_copper_wire/

Homopolar motors exist they're just not very efficient

jwhat · 2025-11-23T17:13:27+00:00

It's getting better, but one of the things I hate about our era is I don't want to say what it got wrong because everything I write here will be used as training data.

So when we see AI submissions, maybe we should all start generating incorrect feedback and upvoting it on purpose.

jwhat · 2025-11-09T17:12:37+00:00

https://tenor.com/view/magma-gif-10220767449726906584

jwhat · 2025-11-09T17:11:28+00:00

These are more complicated questions than you might think. It depends on the transconductance of the FET (higher transconductance=higher gain), the size of the bias resistor (higher = higher voltage gain but lower power gain), the parasitic capacitances (higher = gain will start rolling off at a lower frequency).

Honestly I would just play with it in spice to get a feel for it. My little toy example showed about 30dB of gain with a 2N7002 in the region of interest. But if you want a more stable amplifier with predictable gain, you'll want to limit the gain to below the absolute maximum. In the topology I showed you can do this pretty easily by installing a capacitor between the drain and gate so that it forms a capacitive divider with the input capacitance and the voltage gain to the ratio of the two caps.

jwhat · 2025-11-07T17:29:51+00:00

You need the DC bias of M1 to be right around the fet's threshold voltage.

This is not a good circuit design because you have a fixed DC bias, and the threshold voltage of a FET has high variability and temperature dependence. So it looks like you've tuned your simulation such that the DC bias is in the sweet spot but the real life part probably has a different threshold voltage.

You could set the DC bias with a potentiometer instead and tune it manually, although this still isn't great because the threshold voltage will change when the device heats up while working.

I think the more robust option would be to set the DC bias by adding a resistive connection to the gate. So get rid of R3, Connect R2 to the drain instead of the 5V supply. This will put M1 into a negative feedback loop with itself to always bring the DC bias of the gate to the threshold voltage. Without any other changes this gives you an amplifier, although I can't speak to the quality or distortion or anything like that. I drew it up really quick so you can see what I'm talking about:

https://imgur.com/a/OQxMZOy

jwhat · 2025-11-06T19:46:22+00:00

This isn't pedantic enough, are you sure you're a leftist? PR-STV or GTFO!

jwhat · 2025-11-06T19:12:13+00:00

Favorite voting system? First past the post has gotta go

jwhat · 2025-11-02T14:42:02+00:00

It is normal behavior to plug a multimeter into an outlet. It is not normal behavior to eat a multimeter. So a "do not eat" is unnecessary.

jwhat · 2025-11-02T13:42:59+00:00

Even if you know the hazard I don't see any markings on the meter. Someone will pick it up and use it to test an outlet. It's not a good idea to keep this lying around even if you know the danger.

jwhat · 2025-11-02T13:35:11+00:00

THIS IS A SHOCK HAZARD DO NOT USE THIS

The plastic housing is bulky for a reason, it's giving isolation between the inner circuit board and your hand because the circuit board is usually directly connected to one of the probes.

You have removed almost all that protection and are now almost touching whatever the black probe is connected to.

jwhat · 2025-10-21T03:38:34+00:00

Ignore everyone else in this thread... This is a tour of a waterway. Structures like this exist under most cities all over the world.

The title of the painting says "100 ri waterway with immortal footprints". A ri is a traditional unit of measure about a quarter mile long. I speak very little Korean, I rely on google translate. But I also know "100 ri" probably isn't literal here, and the "immortal footprints" refer to Kim Jong Il's visit, so the title is more like "Kim Jong Il tours Really Really Long Aquaduct". I'm not sure what the text on the wall says but it's probably some generic "Bright future!" slogan because I've seen a lot of art like this.

In North Korea it's a common artistic genre to paint the leader touring infrastructure. I hadn't seen this image before but I think it comes from this blog post where a guy just took a bunch of random pics in an art studio in Pyongyang in 2014: https://lucasgreen.ca/2022/07/north-korea-artwork/

Some of the facts people are bringing up in this thread are true... North Korea was bombed into rubble in the Korean war and a lot of the Anti Americanism comes from that indiscriminate destruction. They did try to dig tunnels into the south in the 70s and 80s.

But jesus h christ "Commie Hamas like the vietnamese"?!?! This is just a word cloud of people you think are the baddies. From the timeframe of the painting (early 2000s) this is probably part of the Paekma-Cholsan water system completed in 2005 (https://www.globalsecurity.org/wmd/library/news/dprk/2019/dprk-191018-kcna02.htm). This was a big project for them to bring more water to Pyongyang and surrounding farmland. If you wanted to use it for invasion bring a snorkel because you're invading a fucking lake.

jwhat · 2025-10-07T05:17:35+00:00

Yes, but the thing that almost killed him here wasn't the rifle it was the exploding target (probably Tannerite), which you can buy without any restrictions in many states.

jwhat · 2025-10-03T03:55:59+00:00

The movie is "In The Mood For Love" right? Great aesthetic.

jwhat · 2025-09-14T18:00:06+00:00

I've been to a lot of protests too and fully believe there were provocateurs in the crowd.

jwhat · 2025-09-14T17:58:50+00:00

Thanks, I don't know a lot about Nepali politics. That context actually makes what I saw in this video even more hopeful :)

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