Check out Audible: http://bit.ly/AudibleVe Veritasium second channel: http://bit.ly/2Veritasium Rodney Fox Shark Attack Story: http://bit.ly/1frAwlI.
========== This spike we place right in next to the dorsal
fin. That is the pinger.>> And you put it on that bone behind your
ear. You can hear it pinging.>> Oh, man. Oh. It is quite high pitched.
It sounds like a really high pitched birdchirping in your ear.>> The sound given off by the tag that will
on that a frequency of 69 kilohertz, but theneach tag has its own specific frequency space
ID.>> So using underwater microphones you can
hear when different sharks are nearby.There is a little yellow buoy out there which
actually has a little tracker on it. So everytime a tagged shark swims by...This is like the shark not checking in.>> Yes, it is. It is like a shark checking
in. And over here {?} then it connects toa satellite.>> And it email...