Sun-melted sand for roads

Sun-melted sand for roads

Xlg Sand
Fun idea from Modern Mechanix 1933 – Link.

10 thoughts on “Sun-melted sand for roads

  1. Kevin says:

    Sun melted sand, nothing, how about those solar powered steam tractors!

  2. yo_tyler says:

    Wouldn’t this make glass?

  3. rmadams says:

    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…

  4. Bob says:

    I used to melt pennies with my lenses. You can do it with any fresnel lens from an overhead projector.

  5. Heidi says:

    …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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