Thanks for a fun story. When I saw the headline I wondered if it was the old hypotenuse theorem that would be the subject. Pythagoras was a philosopher as well as a mathematician--it was easy to be both in the ancient world--and he is also known for other ideas. But this theorem was the first thing about mathematics I learned that made math seem powerful and almost mysterious, and I never forgot the rule.
Although plastics make up only about 11% of all US municipal solid waste, many are actually more energy-dense than coal. Converting these non-recycled plastics into energy with existing technologies could reduce US coal consumption, as well as boost domestic energy reserves, says a new study.
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