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xkcd #3279: Main Span (thelemmy.club)
submitted 2 months ago by [B] to c/xkcd@lemmy.world
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xkcd #3279: Main Span

Title text:

Wind stress? Don't be silly. When has wind stress ever been a problem for a suspension bridge?

Transcript:

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Source: https://xkcd.com/3279/

explainxkcd for #3279

Wind stress? Don't be silly. When has wind stress ever been a problem for a suspension bridge?
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[–] 1 point 1 month ago (1 child)

Does that mass include the containment and support structure for the balloon itself?

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  • [–] 1 point 1 month ago

    Surface area is 895844 m², Dycron weights 4 ounces per sailsmakers yard, or 0.171 kg per m². 153458 kg, so additional 38365 m³ required, supports should also be relatively light. Quite negligible compared to, for instance, cars weight.

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