Thus the frequency of the given a.c. supply will be equal to the frequency of the vibrating string.

As the rooks, at dawn of day, Bestirring them to dry their feathers chill, Some speed their way a-field; and homeward some, Returning, cross their flight; while some abide, And wheel around their airy lodge: so seem’d That glitterance, wafted on alternate wing, As upon certain stair it came, and clash’d Its shining.

I will persevere in my course of loyalty, though the conflict be sore between that and my blood.

an exceptional curve; an exceptional divisor