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We created an incredibly efficient method of transport and then most of us abandoned it (youtube.com)
submitted 8 months ago by to c/bicycling@lemmy.world
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cross-posted from: https://lemmy.world/post/42332019

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[–] 4 points 8 months ago (5 children)

Video so text summary needed.

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  • [–] 8 points 8 months ago (4 children)

    The person in the video shows this graph, or a very similar one.

    She highlights the different categories between swimmers, fliers, runners and vehicles.

    Then, she reveals the "human on a bicycle" entry on the graph and says that humans on a bike are much more efficient than anything else.

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  • [–] 3 points 8 months ago

    Very interesting. I wonder why a horse is so much more efficient than a rodent. Something to do with size and limb mechanics I guess. Would be nice to know what the dot underneath "automobile" is, I'm guessing "bus".

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  • [–] 2 points 8 months ago

    I think the math checks out for this graph.

    If a human on a bicycle consumes 0.15 calories per gram per kilometer, then a 100 kg person would be:

    100000g x 0.15 calories = 15,000 calories = 15kcal

    I'm guessing these numbers are for a racing bike on a flat stretch of smooth road where you don't need to brake or accelerate.

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