• 2 Posts
  • 124 Comments
Joined 26 days ago
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Cake day: May 11th, 2026

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  • Imma break your brain

    The energy in a circuit isn’t contained in the copper or the electrons, but in the electromagnetic field that is applying a force to move those electrons

    In a printed circuit, the energy in a circuit technically exists between the copper leads (signal and return path) and not the copper itself. It’s in the fiberglass of a board.

    We experience the symptoms of an electromagnetic field via copper a lot. It’s where our intuition comes from and where rule of thumb laws like ohms law or the power law come from. However, they are lying to you in order to make it more understandable.

    This is also why radio works. You’re just making the signal conductor one antenna, and the return path the receiver antenna suuuuper far away.

    “There are two types of electrical engineers in this world: those that design antennas by accident, and those that do it on purpose.”










  • It’s rent seeking through regulations. It’s too expensive to make a simple car that also complies with these regulations. The only people who can afford to do it are gigantic established brands with a century of production lines and established infrastructure.

    “Oh no. More car brands failed. We can’t let them fail can we? Allow us to merge more?”

    “Oh no. We’re in trouble financially. If we die you won’t have cars at all any more because we merged everything. Lots and lots of your voters will be pissed if that happens. There’s also no way in hell a new car brand is going to establish itself when it costs so damn much to meet these regulations we lobbied and guided to benefit our established interests”




  • Monsanto and friends know that if you make $500/acre they can charge $490/acre. It’s really that bad for input costs because there’s zero competition, and if there technically is more than one company in a space they just refuse to compete, but technically aren’t a cartel…

    Then you have China not buying soybeans from US farmers over politics (justified imo) and those leopards ate a lot of faces

    Also the rescue programs that were meant to help prevent farmers from folding were frozen under DOGE so a whole bunch of farmers made the necessary investments and expenses to qualify for programs that don’t exist currently, costing them even more money while they’re deep in the red.

    A drought and bad harvests have been hitting the US. Last year’s harvest was already not good and this year’s was weird due to the weather and lack of rain or snowpack.

    The Midwest US is only farmable at its current intensity due to the Ogallala aquifer which is like a gigantic underground fresh water ocean. It’s been pumped dry in many places, and will run out in a few decades.

    I heard of a town hall deciding what to do about pumping that aquifer. The choices were

    A) stop all pumping

    B) reduce pumping to steady state levels. It doesn’t recharge and it doesn’t empty more

    C) depletion in 100 years

    D) depletion in 50 years

    Guess which option was chosen…

    It’s also not because they’re dumb they just can’t be responsible. You go bankrupt if you pump less since you grow less, or would need to grow crops that use less water but net lower yields, lower pay, and it doesn’t pay for your giant 16 row corn header or combine.