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Jannis Teunissen

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blog:sustainability_ideas [2018/06/20 20:44] – external edit 127.0.0.1blog: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 times the surface area of the moving object. So we should move +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 coefficient. Some simple ways to make travel more energy efficient are:
-slowly, with a small surface area.+
  
   * Reduce the maximum speed of cars to say 60 km/h   * Reduce the maximum speed of cars to say 60 km/h
   * Make much smaller and lighter cars, as they don't need to be as safe   * Make much smaller and lighter cars, as they don't need to be as safe
-  * Make public transport free of charge and slightly faster than cars for average trips+  * Make public transport cheaper and slightly faster than cars for average trips
   * Increase the cost of flying and tax fuels for planes similarly as fuel for cars   * Increase the cost of flying and tax fuels for planes similarly as fuel for cars
  
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   * Make contraception free of charge everywhere.   * Make contraception free of charge everywhere.
   * Provide tax or financial incentives for sustainable family sizes -- depending on the region/country.   * Provide tax or financial incentives for sustainable family sizes -- depending on the region/country.
-  * It's not only about the number of people, but also about how much resources are consumed. I'm pretty sure we would all happily fly a helicopter or private jet if we were able to.+  * It's not only about the number of people, but also about how many resources are consumed. I'm pretty sure we would all happily fly a helicopter or private jet if we were able to.
  
 ==== Energy production ===== ==== Energy production =====

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