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Measuring a Bullet’s Flight to Millionth Part of a Second.

Issue 20 and Volume 1892 11.

Measuring a Bullet’s Flight to Millionth Part of a Second. Professor C. V. Boys, F. R. S., among other experiments performed before his audience, in a recent lecture in London, was one in which the measuring the flight of a bullet was performed as follows: The bullet in its flight was made to cut two wires—one at the muzzle of the barrel and the other six feet distant. These were attached to electro-magnets in connection with the main apparatus, which, roughly speaking, consisted of a carriage running on wheels and worked by a powerful spring. The pistol went off, and immediately afterward Professor Boys triumphantly displayed, by means of the familiar lantern and screen, a smoked glass on which the apparatus had recorded its work. The points at which the wires had been broken were marked by a breakage in the two straight lines traced by the electro-magnets, and the…

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