Post #2739332

2026-01-06 22:08 UTC

@evdelen@mstdn.ca @Aurora_Bee@deadinsi.de cars on the other hand are made out of mostly air, compared to rail. Body shell panels on modern cars are below 1mm in thickness. It's not strange, it's thermodynamics meets an axle load of 22.5t that's transmitted through a contact surface that's smaller than most coins, to say nothing of the dynamic loads. Steel on steel, not rubber on asphalt. You roll a car over a coin on the road, the coin is fine. Do the same with a train car it's crushed and flattened

Replies (1)

@evdelen@mstdn.ca 2026-01-06 22:18

@PalmAndNeedle@norden.social @Aurora_Bee@deadinsi.de True, however I was citing the car as an example that a body that is warmer than ambient, even if it is below freezing, will cause snow to sublimate away. As soon as even a small part of a cars window is exposed to light it create a greenhouse effect, this causes the entire car to be warmer than its surroundings and all the snow on the car will quickly melt (actually sublimate) away, even if the car never gets above freezing. That's the principal I'm saying needs to be employed in an electric system, the rail needs to be kept at all times above the ambient temperature, otherwise, because rails are a giant heat sink, they tend to trail ambient temperature (be cooler than morning temps, hold daytime heat in the evenings). Ultimately it's the morning cycle that ends up being the problem, but if the rails are KEPT above ambient the whole time that problem shouldn't arise in the first place.

Open ##2739333