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Sheck Exley (April 1, 1949 – April 6, 1994) was an American cave diver. He is widely regarded as one of the pioneers of cave diving, [ 1 ] [ 2 ] and he wrote two major books on the subject: Basic Cave Diving: A Blueprint for Survival [ 3 ] and Caverns Measureless to Man . [ 4 ]
The following is a list of notable deaths in April 1994.. Entries for each day are listed alphabetically by surname. A typical entry lists information in the following sequence:
Sheck Exley died in 1994 at 268 m (879 ft) in an attempt to reach the bottom of Zacatón in a dive that would have extended his own world record (at the time) for deep diving. [ 44 ] Dave Shaw died in 2005 in an attempt at the deepest ever body recovery and deepest ever dive on a rebreather at 270 m (886 ft).
The Johnson Sea Link was the successor to Edwin Link's previous submersible, Deep Diver, the first small submersible designed for lockout diving.In 1968 the Bureau of Ships determined that Deep Diver was unsafe for use at great depths or in extremely cold temperatures because of the substitution of the wrong kind of steel, which became brittle in cold water, in some parts of the submersible. [6]
Despite the unique circumstances of each individual accident, Exley found that at least one of a small number of major factors contributed to each one. This technique for breaking down accident reports and finding common causes among them is now called accident analysis, and is taught in introductory cave-diving courses. Exley outlined a number ...
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The book is in ten chapters, each based on the analysis of an accident report. The pdf version of the 5th edition has 46 pages. [3]The foreword explains how Exley was inspired to write the book after viewing some state highway patrol accident report pictures, and realizing how effectively they brought him to understand the possible consequences of unsafe driving, and how he applied this ...
Frederick Exley (1929–1992), American writer; Peter Exley (born 1964), British architect working in the United States; Sharon Exley, designer, architectural partner of Peter; Sheck Exley (1949–1994), American cave diver; Thea Exley (1923–2007), Australian archivist and art historian; Thomas Exley (1775–1855), English mathematician