filar

Example Sentences

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To Bouguer in 1748 is due the true conception of measurement by double image without the auxiliary aid of a filar micrometer, viz. by changing the distance between two object-glasses of equal focus.

From Project Gutenberg

According to Prof. Skeat it is derived from the Span. filigrana, from “filar, to spin, and grano, the grain or principal fibre of the material.”

From Project Gutenberg

Place the filar micrometer and the stage micrometer in their respective positions.

From Project Gutenberg

The method of observing which Brünnow employed was quite different from that of Struve, though the filar micrometer was used in both cases.

From Project Gutenberg

For several thousand years the stars have been called "fixed," but the fine rulings of the filar micrometer tell a different story.

From Project Gutenberg