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0 pointsChoGGi6y ago0 comments

Desert sand is rounded, river sand is spiky.

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I've wondered if we could melt the desert sand into glass and use machines to get it back down to the right coarseness.

It's one of the ways I think widely available & cheap renewable energy would help solve most of the worlds resource shortages

j / k navigate · click thread line to collapse

0 pointsChoGGi6y ago0 comments

Desert sand is rounded, river sand is spiky.

I've wondered if we could melt the desert sand into glass and use machines to get it back down to the right coarseness.

It's one of the ways I think widely available & cheap renewable energy would help solve most of the worlds resource shortages

j / k navigate · click thread line to collapse