Machines generate waste heat when they do work for us. And this year, seven billion of us will use twenty-five trillion kilowatt hours of electricity. An awful lot of that will end up as waste heat. So, we treat waste heat as a problem. We see it as a challenge to design how we can manage it. We don’t think of it as a resource. If we thought of it as a resource, that would be results we are just throwing away.
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Our bridges, motorways, tunnels, and dams, and all the buildings that make up our infrastructure are vital to our society and economic growth yet we take them for granted. The shocking truth is that our infrastructure is crumbling beneath our feet. And this is costing us dearly, both in terms of money and carbon.
Designers do spend a fair bit of time thinking about what materials to use, but they don’t necessarily think about why those materials have the properties that they have.