Water, Water, Everywhere

1
Water, Water, Everywhere

• Lecture 2September 10, 2007

2
(No Transcript)
3
Wishing to get a better view than I had yet had
of the ocean, which, we are told, covers more
than two-thirds of the globe, I made a visit to
Cape Cod. Henry David Thoreau, Cape Cod


4

• The truth is that this world is a water world, a
  place dominated by its covering mantleof ocean,
  in which the continents are but transient
  intrusions of land above the surfacef the
  all-encircling ocean
  
  Rachel Carson, The Sea Around Us (1950)

5
Pacific Atlantic Oceans
6
The Oceans of the Earth
7
Hecataeus World Map (500 BC)
8
Aristotle (384-327 BC)
9
Albi World Map (800 AD)
10
St. Sever World Map (1030 AD)
11
Isodore World map (800 AD)
East
North
12
Medieval T-O Map(east at top)
13
Ptolemy (100-170 AD), world map as printed in
1474
14
Robert T. Dietz (1914-95), Scripps geologist
co-credited with theory of plate tectonics
15
Paoli Toscanelli Map (1474), likely known to
Columbus
16
Captain James Cook (1722-1779)Charted Pacific
Southern Oceans
17
(No Transcript)
18
Isaac Newton (1642-1727)
19
Moons and Suns gravitational impact on earths
oceans/tides
Sun
Neap Tide
Moon
Sun
Moon
Spring Tide
20
Benjamin Franklin (1706-1790)
21
Franklin/Folger Map of Gulf Stream (1768)
22
Gaspard Gustave de Coriolis (1792-1843)
23
Coriolis Effect on Currents in North Atlantic
Ocean
24
Matthew F. Maury (1806-1873)
25
Maury Wind Chart (1855)
26
William Beebe and Otis Barton
27
August Piccard
28
Alfred Wegener (1880-1930),1915 proponent of
continental drift theory
29
Maurice Ewing
30
Tharp-Heezen Map of Ocean Floor
31
Marie Tharp
32
Harry Hess (1906-69), Princeton geologist
co-credited with theory of plate tectonics
33
Map of worlds major plates and interfaces
Mid-Atlantic Ridge center/vertical
34
Rachel Carson (1907-1964)marine biologist and
writer
35
Barry Commoner (1917-), ecologist and
environmentalist CC 37
36
Roger R.D. Revelle (1909-1991)
37
Al Gore (1948-), politician and author of An
Inconvenient Truth (2006)