TED-Ed

The century-old technology that could change the world - Rachel Yang (2025x20)

Air date: Mar 11, 2025

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.