High Tech Concrete (Intro to Solid-State Chemistry)
And this gets me now to our last why this matters, and I'm doing it on the backdrop of this beautiful periodic table. So that's a lot of energy, by the way. First you had to make these iron pipes, and now you've got to case-harden them or maybe you've got to put even more iron in. Look at the other 900 C is really hot. How much energy do we take to make stuff as simple as concrete? It's just liquid stone. Didn't you just grind some stones down or something and then pour it out? Actually, if you think about concrete and other materials like steel, the use of them is skyrocketing. This is how much we're making. So look at this, the millions of tons. Let's see. There's steel, and there's cement. Look at that. There's the world population right there, and this runs out in 2009, 2010, '11, but it's continuing. It's continuing because it's not just that the population is growing, it's that the places that the popul...