In electromagnetism, electromagnetic waves in vacuum travel at the speed of light c, according to Maxwell's Equations. The retarded time is the time when the field began to propagate from a point in a charge distribution to an observer. The term "retarded" is used in this context (and the literature) in the sense of propagation delays.
Read more about Retarded Time: Retarded and Advanced Times, Application
Famous quotes containing the words retarded and/or time:
“I began to realize that it was bigotry of the worst kind to say that it’s better to be dead than to be born retarded or blind or without a limb. It’s a value judgment you’re making about someone’s life, based on their degree of perfection.”
—Juli Loesch (b. c. 1953)
“Her heavenly form
Angelic, but more soft and feminine,
Her graceful innocence, her every air
Of gesture or least action, overawed
His malice, and with rapine sweet bereaved
His fierceness of the fierce intent it brought.
That space of Evil One abstracted stood
From his own evil, and for the time remained
Stupidly good, of enmity disarmed,”
—John Milton (1608–1674)