Scuba (Self-Contained Underwater Breathing Apparatus) is an acronym we usually associate with face-masks, breathing tubes and back-mounted tanks, but the Scuba-Doo Motorised Scuba Bike opens a new ...

(Phys.org)—Look what an Australian designer would like us to roll with in a no-emissions future: A motorcycle powered by nothing but air. Adding to a growing portfolio of ideas centered around ...