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Joined 1 year ago
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Cake day: June 14th, 2023

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  • To accelerate a vehicle we need to put kinetic energy into it and Power is the measure of how fast we can do that.

    From a technical capability standpoint, torque is a useless measure. With a motor of a given power you can always gear it up or down to whatever torque you need (assuming a lossless transmission system).

    If we take two identical trucks with 10k lb trailers on them and one’s a 800ft-lb diesel and one’s a 300ft-lb gas, both with 400hp, they sould realisticly accelerate and climb a hill at the same rate. The diference is the gas engine will be screaming at 6/7/8000 rpm and guzzling gas. (This also assumes no other factors like heat cone into play, the gas may not be able to maintain as much power due to cooling system designs or other factors).

    Torquey-er engines also tend to feel better from a driveability standpoint but that’s not representative of capability.




  • SCOBYs (Symbiotic Cultures of Bacteria and Yeast) could have some possible applications as fake leather but I don’t know if anyone is working on it or if it could actually be made strong enough.

    One example where we just do not have an equivalent is motorcycle gear. Yeah we have textile jackets, and I have one because where I am the risk of heat stroke in a leather jacket is more of a concern, but if you want abrasion resistance, leather is the best you can get. Can SCOBYs compete with that? I don’t know.





  • So looking at a map.of New Yorks bays and ignoring depth and bridges I’m going to assume this is about 2 miles long or 10,560ft. I have no evidence and just eyeballed it.

    Meaning if you can overcome the skin friction it has a hull speed of about 160mph…without planing.

    Modern carriers have a hull speed in the neighborhood of 45mph (though officially the top speed is like 35mph) and normally cruise at 25-30mph so the slow pokes can keep up.