Surface area/aerodynamics is to make sure the density isn’t spread out in a big sheet or something. Train cars are very fluffy for the max weight they can carry. The stories about trains being picked up don’t really detail that it’s usually empty and/or just rolled over, and not the locomotive.
Comment on Wind speeds
phar@lemmy.world 2 weeks agoIs it density to surface area or aerodynamics? If it can lift a packed 120 ton train, I would think it can lift a 40 ton sauropod, unless maybe the airflow around it stops the lift?
cloudshouter@lemmy.zip 2 weeks ago
Honytawk@discuss.tchncs.de 2 weeks ago
A train is not a sphere. It has more angles that can catch the wind.