Let’s get one thing out of the way early: single-speed electric bikes aren’t perfect. If you live in the hills of San Francisco, they’re not going to be your best friend. But if you’re like the ...

Batteries with "single-crystal electrodes" could power electric vehicles (EVs) for millions of miles — meaning their batteries would outlast other parts of the cars, new research shows. A lithium-ion ...

The design collaboration that brought us the Revolve wheelchair in 2021 has now turned its attention to the problem of inner-city mobility. Noting that many SUV-sized vehicles around town only have a ...