Comparison of underwater odors is the idea behind some mechanical searching devices now in use by the military. These robots use odors to seek underwater bombs. Ms. Gardiner suggests that the current research with sharks may lead to better robotic devices.
Jayne Gardiner is a doctoral candidate at the University of South Florida. Professor Atema works with Boston University and the Marine Biological Laboratory at the Woods Hole Oceanographic Institution, both in Massachusetts.
(MUSIC)
FAITH LAPIDUS: Nothing fits like an old shoe -- especially if that shoe walked the earth five thousand five hundred years ago. Researchers in Armenia found the world's oldest leather shoe, and they say it was in surprisingly good condition.
Doctoral student Diana Zardaryan of the Institute of Archeology found it in a cave near the border with Iran and Turkey. In her words, "even the shoe laces were preserved."
It fact, the team of archeologists first thought it was about six or seven hundred years old. Then two laboratories in the United States and Britain did radiocarbon tests.
The tests showed it was four hundred years older than the Stonehenge formation in England -- and a thousand years older than the Great Pyramid of Giza in Egypt.
BOB DOUGHTY: The cool and dry conditions in the cave protected the shoe and other objects. So did a thick, solid layer of sheep dung covering the floor. This acted as a seal to prevent damage.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25