Shark Repellant
Host Mo Rocca shows us what device is keeping sharks away from swimmers; the video doorbell connected to your smartphone; the history of the DC-3 airliner; and the coating for plastic bottles that gets the last drop.
Host Mo Rocca shows us what device is keeping sharks away from swimmers; the video doorbell connected to your smartphone; the history of the DC-3 airliner; and the coating for plastic bottles that gets the last drop.