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LaCoste's most famous invention is the ship- and aircraft-mounted gravimeter. These revolutionized exploration for minerals by allowing wide-ranging geological surveys. The chief problem that Lacoste defeated was to distinguish the accelerations of the vehicles from the accelerations due to gravity, and measure the minute changes in gravity.
Other units include the cgs gal (sometimes known as a galileo, in either case with symbol Gal), which equals 1 centimetre per second squared, and the g (g n), equal to 9.80665 m/s 2. The value of the g n is defined as approximately equal to the acceleration due to gravity at the Earth's surface, although the actual acceleration varies slightly ...
For each major scale, there is a corresponding natural minor scale, sometimes called its relative minor. It uses the same sequence of notes as the corresponding major scale but starts from a different note. That is, it begins on the sixth degree of the major scale and proceeds step-by-step to the first octave of the sixth degree.
The Gravikord is tuned to a diatonic scale. Its standard scale is in the key of G major/E minor. It has 24 strings, 12 on each side, and is structured like an extended Hugh Tracey kalimba, an already westernized African instrument. The range of notes on both sides are the same and tuning is strictly in an alternate arrangement (except for the ...
Now it became possible to measure gravity more accurately. Vening Meinesz started with measuring gravity all over the Netherlands, for which a network of 51 monitoring stations was created. This became a success, which encouraged him to do measurements at sea. A perfected gravimeter, hanging in a "swing", was designed. The experiment was ...
Gravimeter with variant of Repsold pendulum The large increase in gravity measurement accuracy made possible by Kater's pendulum established gravimetry as a regular part of geodesy . To be useful, it was necessary to find the exact location (latitude and longitude) of the 'station' where a gravity measurement was taken, so pendulum measurements ...
The khromka (хромка) was invented in 1870 in Tula by Russian musician Nikolay Beloborodov. It was a unisonoric (like the bayan or piano accordion), diatonic accordion but on the right keyboard there were also two or three chromatic buttons, usually g 1 ♯, d 2 ♯, f 2 ♯, hence the name khromka.
In Baroque music, G major was regarded as the "key of benediction". [1] Of Domenico Scarlatti's 555 keyboard sonatas, G major is the home key for 69, or about 12.4%, sonatas. In the music of Johann Sebastian Bach, "G major is often a key of 6 8 chain rhythms", according to Alfred Einstein, [2] although Bach also used the key for some 4