Page:Popular Science Monthly Volume 89.djvu/191

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Popithir Sn'rtirc Montldji


��The King of New York's Lighting Spectacles

FR.\MI';Dl)ythr masonry portals of the Municipal Biiikling the Woohvorth tower by night represents one of the greatest artistir achievements in this age of electrical wonders. For more than a year now the thirty- storied tower has burst out into the night as a giant shaft crowned with a scin- tillating jewel. When that part of the building below the thirtieth floor is dark the tower takes on the appearance of a huge crystal hung by invisible wires from the skies. When the switches are pressed into sockets il- luminating the structure more current is employed than is necessary to light the streets of a city of thirty- thousand inhabitants. Si.x; hundr.-d automobile lamps arc contained in the elec- trical installation.

The lights are so arranged that they flood e\'ery inch of the structure. An in- genious system of screening prevents the rays from shoot- ing directly downward or upward, thus revealing the source of light. Anyone viewing the spectacle from below is vexed to find when- the light coiUL's from.

��Origin of Gas Jets Traced to Woman's Thimble

���A WOMAN'S thimble is said to ha\e been the means of suggesting the first gas burner. William Murdock, the inventor, first burned the gas simply as a Hame from the end of a pipe. One day in an emergency he wished to stop the illumination. Hurriedly looking around for something, Murtlock seized his wife's thimble and thrust it over the light, which was inmiediately extinguish- ed. There was a strong odor of gas, however, and the experimenter appli'.xl a

��I'h.ito by I.ovii-k

The Woolworth tower is the king of New York's sky- line at night. Its crown is a great scintillating jewel

��light to the thimble, discovering that it was full of holes, through which tin>' jets of flame appeared. The importance of the result was that the illumination from those two or three tiny jets was much brighter than had been given by the great flare from the end of the pipe. Acting on the principle which this chance discovery- re\'ealed, heconstructed what was known as the Cockspur burner.

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