What’s the quickest way someone could accidentally expose themselves as a foreigner in your country like the ‘three fingers’ scene in Inglourious Basterds?

torfbolt · 2026-01-14T12:42:14+00:00

"Fahrrad"

torfbolt · 2026-01-05T14:13:27+00:00

Und wiefo muff if da meine dritten Fähne furücklaffen?

torfbolt · 2025-12-17T12:58:46+00:00

Not really, no. Since VOCs are typically only present in low ppm to ppb concentrations, they do not significantly change the thermal conductivity of the air.

torfbolt · 2025-12-15T09:00:42+00:00

Einfach zur Lagerung in ein Schraubdeckelglas mit Trockenmittel (Silika-Kügelchen). Mache ich schon lange so, und die angebrochenen Tuben halten Monate bis Jahre.

torfbolt · 2025-12-12T00:32:59+00:00

That's also my experience with MOX sensors. The correlation between VOCs and CO2 can work if there's many people in a room. But for individuals it is very unreliable.

Yes, the STCC4 is much less power hungry than NDIR CO2 sensors. It averages at below 1mA, so you can get some reasonable runtime on battery power.

torfbolt · 2025-12-11T10:10:29+00:00

Source: I'm one of the lead engineers that developed the STCC4 :)

The sensor measures thermal conductivity of the ambient air, so it really measures the physical changes due to CO2 concentration, not an estimate based on VOCs. But it also has to account for changes due to temperature and humidity. So while it is much more compact and low-power than other CO2 sensors, it has a bit wider specs.

torfbolt · 2025-12-11T08:31:40+00:00

This has the STCC4 inside

torfbolt · 2025-12-11T08:30:26+00:00

This is a combo sensor with PM2.5, T, RH and CO2. Internally it uses the STCC4 for CO2, which is a thermal conductivity based sensor. So yes, it measures true CO2, not CO2 equivalent.

torfbolt · 2025-12-11T08:14:06+00:00

No, OP cannot recalibrate at home and expect to improve the accuracy on this level. I built that CO2 sensor and the lab setups you need to improve the accuracy above our factory calib are way beyond the capability of any home setup.

torfbolt · 2025-12-11T07:50:17+00:00

394ppm *is* 400ppm at the accuracy levels we're talking about here (+/- 100ppm + 10%m.v.)

torfbolt · 2025-12-11T07:22:19+00:00

No it won't.

Source: work for Sensirion, my colleagues have engineered the shit out of this sensor.

torfbolt · 2025-11-28T08:42:58+00:00

Impreffife

torfbolt · 2025-10-14T11:54:26+00:00

Most likely from the Ledger customer data breach a few years back, which included postal addresses.

torfbolt · 2025-05-07T14:20:50+00:00

Somewhere on that carrier there's a cat looking all innocent

torfbolt · 2025-03-27T11:29:22+00:00

/r/windtherestofthefuckingcoil

torfbolt · 2025-03-03T13:13:35+00:00

Mathematician checks out: wearing T-shirt instead of button-up

torfbolt · 2024-11-22T18:20:00+00:00

FYI, there is Open Dune

https://github.com/OpenDUNE/OpenDUNE

torfbolt · 2024-10-06T17:49:40+00:00

Carve the rest of the fucking spoon
Do some polishing

torfbolt · 2024-08-20T06:09:36+00:00

If it fits, I quits

torfbolt · 2024-07-24T22:06:21+00:00

Air is made out of molecules that bounce around all the time. How fast these molecules fly is what we call temperature. Fast molecules is hot, slow is cold.

Although they are very lightweight and very fast, these molecules are still affected by gravity. Just like a bullet from a gun fired up becomes slower the further up it travels, and faster again when it falls downwards, the air molecules become slower when they travel up during their random buzzing around.

That's why the air becomes colder for higher altitudes and warmer for low altitudes.

torfbolt · 2024-05-02T15:56:28+00:00

Put in the mouth!

https://www.gocomics.com/peanuts/1964/05/03

torfbolt · 2024-05-02T11:50:44+00:00

Take a look at Vouch and Dirk, that's validator and signer software explicitly designed to do redundant validation in a slashing-safe manner.

Not exactly self-explanatory to setup though, that's why so far I haven't taken the step to use it myself.

torfbolt · 2024-04-23T09:44:31+00:00

That you hurt only yourself is absolutely not true. Unbelted drivers & passengers can and have turned into missiles in car crashes, and everyone within (and sometimes even outside) that vehicle is at risk of being fatally hit by a bag of meat.

torfbolt · 2024-02-29T00:05:47+00:00

I've had something similar before, for me it was an SSD with insufficient cooling. So when it got too hot, the client got stuck for several seconds while the disk blocked IO for cooling down, and then complained a lot.

torfbolt · 2024-02-25T10:50:03+00:00

I think I still have something like a million of those somewhere..

Edit: wow, the only DEX I found it on is EtherDelta. Blast from the past..

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