The angle between two objects, such as stars or the opposite limbs of the sun, was measured by directing an arm furnished with fine " sights " (in the sense of the " sights " of a rifle) first upon one of the objects and then upon the other (q.v.), or by employing an instrument having two arms, each furnished with a pair of sights, and directing one pair of sights upon one object and the second pair upon the other.
But in OS measures index error can be eliminated by bisecting both stars with the same web (or different webs of known interval fixed on the same frame), and not employing the fixed web at all.
By employing both hands, operation (I) can be made as quickly as a single pointing with the ordinary spider-line micrometer, and operations (2) and (3) can be similarly performed in the time required for a single pointing.
Although some lurking errors impaired the authority of the concluded parallaxes this work ranks as a valuable contribution to astronomy, since it showed the possibility of employing photography in such delicate investigations.
The Flemish coal-basin, employing over 100,000 hands, produces 60% of the coal mined in France.
Stone-quarrying is specially active in the departments round Paris, Seine-et-Oise employing more persons in this occupation than any other department.
The Wallaroo and Moonta mines, discovered in 1860 and 1861, proved to be even more valuable than the Burra Burra, the Moonta mines employing at one time upwards of 1600 hands.
The diversity of nomenclature indicated above 1 Referring to the Japanese custom of employing a go-between to arrange a marriage.
Hence there are advantages in employing a very loose coupling.
Long upheld by a box kite, and, employing a sensitive coherer and telephone as a receiver, he was able, on December 12, 1901, to hear " S " signals on the Morse code, consisting of three dots, which he had arranged should be sent out from Poldhu at stated hours, according to a preconcerted programme, so as to leave no doubt they were electric wave signals sent across the Atlantic and not accidental atmospheric electric disturbances.
Wien's method of impact excitation by employing a form of spark gap which quenches the primary discharge instantly and excites the free oscillations in the antenna by impact or shock.
Some administrations, in addition to employing the ordinary position meter, use a second one for registering ineffective calls.
Ever since we've had agriculture, people have been employing technology to make it better.
Some show their kindness to the poor by employing them in their kitchens.
He said the attack had been repulsed, employing this military term to describe what had occurred to his regiment, but in reality he did not himself know what had happened during that half-hour to the troops entrusted to him, and could not say with certainty whether the attack had been repulsed or his regiment had been broken up.