Sun-melted sand for roads

10 thoughts on “Sun-melted sand for roads”

1. Kevin says:

   December 12th, 2007 at 10:32 am

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

2. yo_tyler says:

   December 12th, 2007 at 1:10 pm

   Wouldn’t this make glass?

3. rmadams says:

   December 12th, 2007 at 2:32 pm

   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:

   December 12th, 2007 at 6:06 pm

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

5. Heidi says:

   December 13th, 2007 at 10:27 pm

   …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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