Death rays missed the bus for World War II. But the U.S. Government took them seriously enough to engage a first-rate engineer, Dr. Albert F. Murray, to examine all suggestions. Recently Dr. Murray told of his experiences with the death projectors.
First he decided that a useful death ray would have to 1) burn a half-inch hole in a four-inch plank in five seconds; 2) burn a six-inch live tree two miles away in three minutes; 3) kill small animals at 5,000 feet in three seconds. Reason: anything milder would not be valuable militarily.
He examined lots of death rays, which inventors claimed...
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