Sun-melted sand for roads

Xlg Sand
Fun idea from Modern Mechanix 1933 – Link.

10 thoughts on “Sun-melted sand for roads

  1. Clearly the “inventor” didn’t do his math, or at least ever try to boil water with solar power, given the small size of his lenses…

  2. …salvaging salt, iodine, flour, gold etc.
    Flour. From sea water. And here I thought that flour came from wheat. Silly me.
    It does mention that some kind of tread would make the road “skid proof”. I imagine that would last about a year .

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