goniometer

MN This is a goniometer or instrument for measuring angles; it was a precision instrument, lightweight and easy to transport, and was used at sea to measure distances by angle and the height of heavenly bodies, which permitted the observer to determine his position.

Sailing on and on 2008

MN This is a goniometer or instrument for measuring angles; it was a precision instrument, lightweight and easy to transport, and was used at sea to measure distances by angle and the height of heavenly bodies, which permitted the observer to determine his position.

Sailing on and on 2008

He'd take sightings with compass, goniometer, and plumb bob.

Operation Luna Anderson, Poul, 1926- 1999

As a measure of the high precision achieved by Siegbahn's spectrographs (which are held at a constant temperature and read, in tenths of seconds, by means of two microscopes mounted diametrically opposite one another on a precision goniometer) may be mentioned the fact that his energy-level values, arrived at thirty years ago, still serve for many purposes.

Manne Siegbahn - Biography 1965

The refractive power of these yellow stones is remarkable, and the goniometer will probably reveal a higher index than is accorded to all the varieties of beryl by the learned Abbé Haüy.

Lippincott's Magazine of Popular Literature and Science Volume 11, No. 27, June, 1873 Various

One day, during an interlude of free flight, he strode into the control-room and glanced at the course-plotting goniometer, then started into the "tank."

Galactic Patrol Smith, E. E. 1950

An important property of calcite is the great ease with which it may be cleaved in three directions; the three perfect cleavages are parallel to the faces of the primitive rhombohedron, and the angle between them was determined by W.H. Wollaston in 1812, with the aid of his newly invented reflective goniometer, to be 74° 55 '.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Various

Under his right and left hands were the double-series potentiometers actuating the variable-speed drives of the flight-angle directors in the hour and declination ranges; before his eyes was the finely marked micrometer screen upon which the guiding goniometer threw its needle-point of light; powerful optical systems of prisms and lenses revealed to his sight the director-angles, down to fractional seconds of arc.

Spacehounds of IPC 1927

Mineralogy, the goniometer, the constancy of angles and the primary laws of derivation by Romé de Lisle, and next the discovery of types and the mathematical deduction of secondary forms by Haüy.

The Ancient Regime Hippolyte Taine 1860

There may be a sort of horseback theory of geology; but mineralogy, and the natural sciences generally, must be investigated on foot, hammer or goniometer in hand.

Memoirs of 30 Years with the Indian Tribes on the American Frontiers Schoolcraft, H R 1851