I n a straight uniform current of fluid of density p, flowing with velocity q, the flow in units of mass per second across a plane area A, placed in the current with the normal of the plane making an angle 0 with the velocity, is oAq cos 0, the product of the density p, the area A, and q cos 0 the component velocity normal to the plane.

Its control of the Aegean was, however, contested not without success by the Antigonids, who won the two great sea-fights of Cos (c. 256) and Andros (227), and wrested the overlordship of the Cyclades from the Ptolemies.

According to (18), the effect of the force acting at dS parallel to OZ, and of amount equal to 2b2kD dS cos nt, will be a disturbance - dS sin cos (nt - kr) (20), regard being had to (12).

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Almost every householder in both islands is the owner, joint owner or skipper of a sailing ship. The southern Sporades are as follows: Ica'ria, Patmos, Leros, Calymnus, Astropalia (Astypalaea or Stampalia), Cos (Stanko), Nisyros, Tilos or Episcopi, Syme, Khalki, Rhodes, Crete and many smaller isles.

Herophilus (335-280 B.C.) was a Greek of Chalcedon, a pupil of the schools both of Cos and of Cnidus.

The Erasistrateans paved the way for what was in some respects the most important school which Alexandria produced, that known as the empiric, which, though it recognized no master by name, may be considered to have been founded by Philinus of Cos (280 B.C.), a pupil of Herophilus; but Serapion, a great name in antiquity, and Glaucias of Tarentum, who traced the empirical doctrine back to the writings of Hippocrates, are also named among its founders.

The middle element alone contributes without deduction; the effect of every other must be found by introduction of a resolving factor, equal to cos 0, if 0 represent the difference of phase between this element and the resultant.

Towards the end; Early Seville and Early Longpod beans; and short-topped radish in two or three sowings, at a week's interval, all on a warm border; also Hardy Green and Brown cos lettuce in a frame or on south border.

ARTEMISIA, daughter of Lygdamis, was queen of Halicarnassus and Cos about 480 B.C. Being a dependent of Persia, she took part in person in the expedition of Xerxes against the Greeks, and fitted out five ships, with which she distinguished herself in the sea-fight near Salamis (480).

If f be the radius of the spherical wave at the place of resolution, where the vibration is represented by cos kat, then at any point M (fig.