The first thing I noticed about the Arc One, a speedboat that runs only on electricity, was how quiet it is. Like an electric car, it runs much quieter than its gas-engine counterpart. When the boat ...

Rockets and boats have more in common than you’d think, explains Ryan Cook. And while I get the feeling that he has made this point before, he’s also the guy who would know. Cook spent nearly a decade ...

Electricity and water don’t mix — well, actually, they mix really well, which can be problematic for humans. So the thought of an electric boat may seem risky. A new California startup called Arc is ...