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Cake day: June 23rd, 2023

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  • TheOakTree@lemm.eetoScience Memes@mander.xyznuclear
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    3 days ago

    I think people underestimate the value of intertia in power generation. I liken it to the way capacitors regulate voltage changes or coilovers absorb bumps and vibrations.

    The inertia of the generators connected to the grid helps stabilize frequency changes caused by blackouts, power plant issues, etc. by resisting and thereby slowing down frequency decline. It buys time for grid operators to find a way to balance loads in a way that doesn’t weaken or disable the grid as a whole.

    Here’s a great NREL report explaining how this all works, and what other systems we use to stabilize grid frequency.









  • TheOakTree@lemm.eetoScience Memes@mander.xyzFuck geometry
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    19 days ago

    The easiest way to think about it is that 1 full rotation (2*pi radians) in 1 second makes 1 Hz.

    The number of rotations made in a second corresponds to Hz in the same way that the number of sine wave periods that fit in a second also represents Hz. This gif does a really good job of showing how rotation relates to sine/cosine waves, which just so happens to help visualize the rad/s -> Hz <- periods/s relationship:









  • This is advice I’ve given to new Rimworld players, and I hope it was helpful. The game (on most difficulties) is itching to give you the next “scenario.”

    Building your wealth in valuable equipment is not very good at the start of the game, because your town’s silver value will go up much faster than its defensive/offensive capabilities. You end up putting a target on your back for raids.

    Better to build a surrounding wall and set up trap corridors than to worry about getting everyone a gun.