The fix for our energy challenges is … a toaster - Rachel Yang

Dig into the science of thermal batteries, and how this technology can generate heat more efficiently than fossil fuels.

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Industrial manufacturers spend a huge amount of energy generating heat to make everyday materials and objects, like cement, steel, and paper. And since most companies use fossil fuels to reach these high temperatures, industrial heat accounts for 20% of our annual global carbon pollution. Thankfully, this is where a century-old technology comes in. Rachel Yang explores how heat batteries work.

Lesson by Rachel Yang, directed by Sofia Pashaei.

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