Millard County Chronicle | 1926-01-28 | Page 7 | Absolutely Perfect Ruler

Absolutely Perfect Ruler uler 0 C. C C. C Peters of ot the bureau of standards standards standards stand stand- ards Washington has completed a n new ruler which he ho thinks will be absolutely absolute absolute- ly free from mathematical error and therefore the most accurate In n the world It has a scale with rulings only five one hundred thousandths of an anInch anInch aninch Inch wide and spaced with an accuracy of at least two millionths of an Inch Completion of ot the ruler upsets the time old ohl sa saying Ing that nothing made by man can I Ibe I be perfect as scientists declare the scale is free tree from error The Time new scale will wilt be used In the calibration of ot micrometer