I find it so surprising that around 70 percent of all human made resources such as concrete are made AFTER 1990. I mean 1990 is fairly a recent time and I don’t think we have experienced much of environmental changes. Where are all they? Do they mostly come from developing countries?

This is a stunning experience, and teaches you something at the same time.

Works perfectly fine on mobile, too!

Guessing glass in included in the aggregates cube? Windows, windshields, skylights, sunroofs, solar panels, aquarium tanks, zoo enclosures etc