Waiting for Superbatteries
Cars That Think
NOVEMBER 29, 2022
Soft wood, such as spruce or pine, packs less than 10 megajoules per liter, whereas bituminous coal has 2.5 By this metric, air-dried wood contains about 3,500 Wh/L, good steam coal around 6,500, gasoline 9,600, aviation kerosene 10,300, and natural gas (methane) merely 9.7—less This article appears in the December 2022 print issue.
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