Rinspeed's first underwater Car

Rinspeed will present its new sQuba, the worlds first diving car, at the Geneva Motor Show (March 6-16). The car is not only able to drive on roads autonomously with a push of a button (thus without a driver, passenger or further assistance), but can also transform into an amphibious vehicle which can be submerged in water up to 10 meters (33 feet). An electric motor with powerful torque drives the rear wheels, while the propulsion on the water is ensured by two propellers in the stern and two powerful jet drives in the bow propelling the vehicle under water while diving. When underwater, the driver and passenger are enclosed in the vehicle thanks to light weight body components made of futuristic Carbon Nano Tubes and are supplied with fresh breathing air by the self-contained on-board system.

DIY Underwater Voice Communications Part 1

Presented by SubmarineBoat.com. This is the first in a planned series of videos that will cover building your own broad band underwater voice communications system for submarines and scuba divers. In other words, we want to put speakers in the water so anyone near can hear and a submarine or diver at depth with a hydrophone can listen and then broad cast back using their own speaker. So we intend to show the construction of an underwater speaker and hydrophone and build or adapt the required electronics, which are mainly fairly common amplifiers. Our designer is David Bartsch who spent eight years in the Navy and made thirteen deterrent patrols aboard the ballistic missile submarine USS Kamehameha (SSBN642B) as a sonar technician.