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In my first job, grumpy Martin had as one of his many indispensable tasks, to build cmucl. (Itasoftware, one of the main lisp shops of the age)


It seems to me that this should have been a case of steganography?

Instead of wiping it clean, wipe to innocuous mode. Then the burden on their part is not only to show that I gave a bad pun, but that the innocuous mode is materially different than the previous state.



creating a convincing and actually safe innocuous mode is probably harder than it sounds in practice


Pilot lights are often designed so that the heat from the flame holds a bimetallic switch in the open position. Should the light go out, the bimetallic switch will shut as it cools.


For water heaters and wall furnaces with a gas control valve, yes. For old stoves, they don't.


TBF the amount of gas used in old style pilots is really tiny. I’m sure it’s possible to accumulate dangerous quantities somehow, perhaps in a sealed subterranean basement if using propane instead of natural gas.

Natural gas is mostly methane, which is lighter than air and easily escapes most structures.


Natural gas today is mostly methane, but in the past it often had large concentrations of CO. In 1950 you can turn the gas on and stick your head in the oven as a form of suicide - won't work anymore (unless you get the house to explode).


Fascinating. I double-checked with ChatGPT (FWIW), and it confirmed. It said that currently, natural gas is extracted and shipped in its mostly pure form. In the mid-20th century, natural gas was "town gas," manufactured by heating Cole in the absence of oxygen. That produced a lot of carbon monoxide.


Yes it's not a concern for kitchen stoves. The amount of gas/flow rate is too low.


Exposing my ignorance, how is this very different from copilot or other online coding agents?


20 trucks lined up in our street (not the real name because it is much too far away to check) remains forever in our bookcase.

Much like Mamoko


I’m confused and think I don’t get it.

If a webpage is an iceberg, the buttons and menus and dropdowns are the visible part. If I understand this page object, that’s what he proposes testing.

But the bit I care about is the bit underneath that will compose REST calls from those UI elements and sometimes make subsequent REST calls from the result of the previous ones.

That is the tricky bit to test, and the bit where we *still* fall back to manual testing and recorded demos for qa.

I was hoping this was a suggestion for a better selenium.


Playwright has replaced Selenium years ago.

Playwright also implements fixtures and Page Object Model:

https://playwright.dev/docs/pom


Twisted, revisited?


I was a bit frustrated that the expected precision wasn’t on the main summary screen.

Does anyone know?


I feel like I missed a preread that teaches me about these strangle super-numeric ip addresses. Eg 400.564.987.500

Am I just seeing ipv6 in an unusually familiar format? Or is it an intentionally malformed format used by wireguard for internal routing?


Looks like modified placeholder addresses because the author didn't want to use real addresses. I don't think it could be used for internal routing since each octet is represented with a single byte (0-255) so having larger numbers for some internal routing would likely break the entire IP stack.


Yes the author needs to be beaten over the head with RFC 5737.


I’m curious about the control surfaces. Since you have the four quadcopter motors, you could potentially just induce all three of yaw pitch and roll by powering those up.

I wonder if the reduction in weight from the now unneeded servos would pay for the extra battery drain.


Great question, but spinning lifting motors in cruise draws more power than it's worth for efficiency.

There's ways to use differential thrust for multiple cruise motors to roll if not positioned at spanwise Cg (e.g. wing mounted like in a commercial jet), but again, usually not efficient. Servos are a small mass fraction relative to other components.


How would you get yaw?


Same way you get it in a quadcopter. You increase rpm in the (say) clockwise rotating props and decrease it in the counter clockwise rotors.

Net effect is yaw counter clockwise, but zero net change in lift.


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