Death Ray Matthews

They called him ‘Death Ray Matthews’. It wasn’t a name he chose for himself, but of all the inventions Harry Grindell Matthews was known for, it was the death ray for which he was both feted and vilified. Was he a charismatic mixture of visionary and charlatan, or an ignored and embittered inventor who could have shortened both World Wars? Whatever the answer, his story is a fascinating one, not least because it brings into sharp focus how the British Government viewed fortean ideas in the early years of the 20th century.

http://www.forteantimes.com/articles/174_deathray.shtml