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Cake day: June 29th, 2023

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  • The biggest reason why companies use trucks instead of trains is that you can fill a semi truck and send it off a lot quicker than you can fill a whole train. I think rail cars capable of individual operation would work great in place of semis, because you get all the benefits of the smaller size, but you could also link them up into full trains for efficiency when possible.

















  • Electrolytes are chemicals that can ionize to carry current. Table salt is one electrolyte, but potassium and magnesium salts are also required by the human body. Nerves work by sending electrical signals, so they need these electrolytes in order for them to carry those signals throughout the body. The problem is, the amount of electrolytes available to nerves depends on the amount present in the bloodstream, and when sweat glands pull water out of the bloodstream, they also take some electrolytes with it. That’s why you need to replenish them after sweating. If you don’t, your nerves won’t work as well and your muscles will have a hard time coordinating. The specific ions you need to organize muscle contraction are sodium, potassium, and magnesium, so if you’re low in any of those, then you risk weakness and cramps. So it’s not quite as simple as just drinking table salt.

    (https://en.wikipedia.org/wiki/Electrolyte)