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blog:sustainability_ideas [2020/05/31 22:08] – [Transportation] jannisblog:sustainability_ideas [2020/05/31 22:10] (current) – [Transportation] jannis
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 For any type of fast transportation through earth's atmosphere, drag (air For any type of fast transportation through earth's atmosphere, drag (air
 resistance) will be important. The drag force is roughly proportional to the resistance) will be important. The drag force is roughly proportional to the
-velocity squared, the surface area of the moving object and the air density. So assuming we won't have [[https://en.wikipedia.org/wiki/Hyperloop|Hyperloops]] any time soon, we should move slowly, with a small aerodynamic surface area.+velocity squared, the surface area of the moving object and the air density. So assuming we won't have [[https://en.wikipedia.org/wiki/Hyperloop|Hyperloops]] any time soon, we should move slowly, with a small surface area, ideally in a vehicle with a small drag coefficientSome simple ways to make travel more energy efficient are:
  
   * Reduce the maximum speed of cars to say 60 km/h   * Reduce the maximum speed of cars to say 60 km/h