Jet engines have revolutionized air travel since their invention in the 1930s. But now a Tesla co-founder sees them revolutionizing something else: garbage trucks. Such trucks are mostly associated with early morning wake-ups, diesel fumes, and the stench of rotting garbage. Garbage trucks are devilish environmental actors, belching diesel exhaust all day as they creep through the city. That’s why Ian Wright developed an electric drivetrain that bolts right in. When the battery runs low, a turbine spins up, burning fuel to generate electricity to keep the truck moving. Coupled to motors at the wheels, it makes the system more similar to a train or a hugely overpowered Chevrolet Volt.