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Maurice Ewing with a release and its timing mechanism, a block of salt.

Maurice Ewing with a release and its timing mechanism, a block of salt.
Maurice Ewing with a release and its timing mechanism, a block of salt.
Maurice Ewing with a release and its timing mechanism, a block of salt.
Maurice Ewing with a release and its timing mechanism, a block of salt.
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39233
Vine, Allyn
Maurice Ewing with a release and its timing mechanism, a block of salt.
Still Image
12/14/2005
com/cullen/Ewing_release.jpg
Image Of the Day caption:
Geophysicist Maurice Ewing stands on the deck of WHOI's first research vessel, Atlantis, holding a mechanism to time the release of seismic equipment from the seafloor so that it could be retrieved at the surface. The key is a block of salt that slowly dissolves in seawater, evenually breaking the connection between equipment and anchor. Earth science pioneers such as Ewing often took advantage of Atlantis, which was then the nation's first and only open-ocean research vessel, to test and deploy devices they invented. Ewing made many inflential discoveries with the help of Atlantis and other ships, including the SOFAR channel.
Caption from Down to the Sea for Science, pg. 38:
Maurice Ewing holds a release and its timing mechanism––a block of salt––for seismic equipment that is to be lowered from Atlantis.
Other Image Usage: William Wertenbaker, "The floor of the sea: Maurice Ewing and the search to understand the earth," (1974) pg. 38.
Photo by Allyn Vine
© Woods Hole Oceanographic Institution
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