Globe Shows Ocean Floor (2:00)
Marie Tharp's papers in the Geography and Map Division contain more than 32,000 pieces including a handmade globe of the earth showing the ocean floor and the location of the mid-Atlantic Ocean ridge.
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Related Videos (10)
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Globe Shows Ocean Floor
Globe Shows Ocean FloorVideo Clip (2:00)
Video Clip (2:00)
Marie Tharp's papers in the Geography and Map Division contain more than 32,000 pieces including a handmade globe of the earth showing the ocean floor and the location of the mid-Atlantic Ocean ridge.
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Written in Bone: William Whites Family Tree
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Doug Owsley and his forensics team look for a mitochondrial DNA match to a body found at a construction site in Washington D.C. In this video clip from Save Our History: Written In Bone the body, a 15 year old Caucasian boy, could be William White.
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Erosion
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The movement of continental plates and water combined to carve out a spectacular landscape.
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How Was Hawaii Formed?
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the origins of the Hawaiian islands have remained a geological puzzle for generations, but recent investigations uncovered that volcanoes hold the key to much of the formation of these beautiful islands.
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Where did Earth's water come from? Scientists explain a surprising possible source.
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Desert Dangers
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While producing Chasing Mummies, the crew braved a variety of dangers from snakes to dehydration to starvation in pursuit of history.
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Meet Leslie
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As an executive producer of Chasing Mummies, Leslie Greif is just trying to keep up with the passionate, and volatile, Egyptian archeologist Dr. Zahi Hawass.
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Meet Zahi
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Dr. Zahi Hawass is an archaeologist who will stop at nothing to uncover mummies and other treasures buried beneath the sands of Egypt.
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Under King Djoser's Burial Chamber
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Dr. Hawass climbs through some tight quarters to get underneath the burial chamber of King Djoser and finds an interesting support system for the sarcophagus.
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Bonus Discoveries At Taposiris Magna
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Dr. Hawass examines some very interesting artifacts found at a pyramid at Taposiris Magna.
Related Speeches & Audio (3)
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First Speech Broadcast by Satellite
First Speech Broadcast by SatelliteAudio Clip (1:43)
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On August 12, 1960, NASA launched the world's first satellite into orbit. A message previously recorded by President Eisenhower was bounced off the Echo 1 and picked up by radio operators across the nation.
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Salk's Polio Vaccine Becomes Obsolete
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In a report from the Voice of America at the 1959 International Scientific Congress at Georgetown University, Dr. Albert Sabin discusses the live poliovirus vaccine he developed and compares it to the inactivated, or “killed,” vaccine first developed by Dr. Jonas Salk seven years earlier.
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Pluto Loses Planet Status
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On August 24, 2006, the International Astronomical Union voted to reclassify Pluto as a "dwarf planet," shrinking the solar system from nine planets to eight and setting off a controversy within the scientific community. In a broadcast following the announcement, James Zimbelman from the Smithsonian Institution shares his opinion about the "oddball" of outer space.
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