ACCELERATED Motion on oblique or inclined-planes. See [Motion].
Accelerated Motion of pendulums. See [Pendulums].
Accelerated Motion of Projectiles. See [Projectiles].
ACCENDONES, in military antiquity, a kind of gladiators, or supernumeraries, whose office was to excite and animate the combatants during the engagement.
ACCENSI, in antiquity, were officers attending the Roman magistrates; their business was to summon the people to the public games, and to assist the prætor when he sat on the bench.
Accensi, in military antiquity, was also an appellation given to a kind of adjutants appointed by the tribune to assist each centurion and decurion. According to Festus, they were supernumerary soldiers, whose duty it was to attend their leaders, and supply the places of those who were either killed or wounded. Livy mentions them as irregular troops, but little esteemed. Salmasius says, they were taken out of the fifth class of the poor citizens of Rome.
ACCESSIBLE, that which may be approached. We say, in a military stile, that place, or that fortress, is accessible from the sea, or land, i. e. it may be entered on those sides.
An accessible height or distance, in geometry, is that which may be measured by applying a rule, &c. to it: or rather, it is a height, the foot whereof may be approached, and from whence any distance may be measured on the ground.
Heights, both accessible, and inaccessible, may be taken with a quadrant. See [Altitude]; and the article on Field Fortifications in the American Military Library, Theorem 11, 12, 13, 14, 15.
One of the objects of surveying, is the measuring both accessible and inaccessible distances.