Self-aligning bearings for supporting a chrono
The rotation of the Galaxy about its centre. The velocity of rotation increases sharply to approx 150kms_1 at 1 kpc from the centre, increases more gradually to a peak near the Sun
A drawing depicting the relationship between two or more variables. The relationship may be known mathematically, eg the graph of the equation x2 + y2 = 1 is a circle, or it may be unknown, eg the graph of a hospital patient
Of a fluid, the pressure as shown by a pressure gauge, ie the amount by which the pressure ex
Vessels which are used for measuring liquids and are adapted to measure or deliver definite volumes of liquid.
A hydrated calcium silicate, formula Ca2Si3070H2 H20. Often occurs in amygdales with apophyllite.
Use of differences between relative densities of roughly sized grains of mineral to promote settlement of denser species while less dense grains are washed away. See buddies, dense media process, Humphrey spirals, hydrocyclones, jig, shaking table, sluice, vanner.
A capacitor between the grid and the remainder of the grid circuit,
Two or more gear wheels, transmitting motion from one shaft to another. With external spur or bevel gears, the velocity ratio is inversely proportional to the number of gear teeth,
Prefixes from Gkgenos, race, descent,