Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Every swimming pool needs an underwater navy. The Seawolf remotely ...

Anything can be a remote controlled airplane, and ‘copters – quad or not – simply beat the air into submission. Remote controlled cars are easy, and RC tanks can even shoot their guns. One type of ...

While there are plenty of aerial drones that show us our surroundings from up in the air, there are far fewer remote-control devices that let us see what's lurking beneath the surface of the water.