26 ms·

Any other info or a higher res for that graph? That totally goes against what I would've assumed! (Trains are wildly inefficient?! Swimming is more efficient th

• saagarjha 8y ago
  If you have fins and are streamlined like a fish, I'd assume it doesn't take a whole lot of effort to move.
• mjmahone17 8y ago
  I think you’re reading that wrong. Trains are nearly the lowest energy/kg per unit distance travelled, as they’re in the bottom of the graph. Though it’s a bit weird for the x axis to be mass, too. Basically the y axis is a measure of efficiency. The x axis just spreads out the points so you can compare things of similar mass.
  • soared 8y ago
    Oh I was reading it wrong, thank you. Its hard to see on mobile. Glad to hear trains are efficient again though.