Crest the horizon or plumb ocean depths with unconventional mechanicalinventions. Explore diving technology that originated with scuba- Jacques Cousteau’s Self-Contained Underwater Breathing apparatus. See how machines like rebreathers may provide the ultimate underwater experience - free diving. Examine the helicopter’s unusual construction which allows it to ascend without a runway and execute adile maneuvers too dangerous for other flying machines. Then discover the amphibious Hovercraft, gliding over water or rugged terrain on a cushion of air. It’s a lively view of machines that transport us into environments formerly off limits. Click Here to Get Buy Now!