FLASHING OF MESSAGES.
A!ANY -MILES WITH AIIRROR.
Equipped with an ordinary mirror a little more than a foot square, Ray Clifford of Pasadena, U.S., heliographed messages from the top of Mount Wilson to the steamship Yale as she was leaving San Pedro harbor. The distance was forty-two miles. The feat was unique in that Clifford used an ordinary mirror instead of the combination of several required in heliograph work. “Ship ahoy !” This was the message flashed to the Yale, Clifford using the Alorse code. “Ahoy! Yale!” was the quick response, presumably from the ship's wireless operator. Several messages were then flashed back and forth. The steamer is believed to have used regular heliograph instruments.
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https://paperspast.natlib.govt.nz/newspapers/GIST19111101.2.67
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Gisborne Times, Volume XXIX, Issue 3363, 1 November 1911, Page 8
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114FLASHING OF MESSAGES. Gisborne Times, Volume XXIX, Issue 3363, 1 November 1911, Page 8
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