What a visual feast tonight on the Discovery Channel at 10 p.m. I had never seen this bit before. It concerned tests done in a 12 million gallon tank with a 5 foot bow section mock-up to study the motion of the final plunge. Expecting a corkscrew, after numerous repeats, the descent turned out to be more of a graceful glide, level off, and glide then a slide into the mud at 22 knots, with a slight twist to port which would explain the buckling there. The bow showed the inclination to keep itself keel down and level. Fascinating. Then the stern was carefully analyzed with the scenario explaining the utter demolition of this section as being one of trapped air pockets which compressed, then exploded, peeling back the poop deck like a sardine can lid. I was thrilled to hear Claes-Weterholm's theory which explained the quantity of cork bits floating on the sea as seen by the survivors- apparently it had something to do with the vast refrigeration chambers which were above the trapped air which, when it exploded, decimated everything in the compartments above it. The photography was fabulous- do try to catch it again this weekend- usually these are rebroadcast on Saturday. Two hurricanes bearing down on the expedition brought it to an end before the team wanted to leave. You will recognize George Tulloch , Charlie Haas and Jack Eaton among the crew. Am still sitting here with mouth open taking it all in.