Powder-Powered Electric-Assist Bike Runs on Water and Magic Metallic Dust

It’s a 21st-century conundrum: You want a power-assisted bike that’s electrically powered and that packs an energy density (and a light weight) that lithium-ion batteries simply can’t provide. But the idea of strapping a tank of compressed hydrogen between your legs makes you somewhat uncomfortable as well. SiGNa Chemistry has a solution: a metallic metal powder of sodium silicide that generates hydrogen as soon as it comes in contact with water.

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