The polarized light stereoscopic display technique, which uses undulation of the light wave, separates a combined stereoscopic image into right and left images using orthogonal oriented filter sheets.
One metre is the distance that light travels in one second, divided by 299,792,458; and one second lasts for precisely 9,192,631,770 undulations of the light wave that a caesium-133 atom emits when it is coaxed to switch from one particular state to another.
They could not directly see the planet, but they could spot undulations in the frequency of light from the star caused by the gravitational pull of the planet.
Akkad's signature Spire link mirrors the curves of the body in the gentle undulations of a surprisingly light white gold sautoir necklace, accented with delicate white diamond pave.
These, glittering in the sunshine, might be compared to diverging rays of light; they were not, however, straight, but in undulations like films of silk blown by the wind.
Maxwell's theory predicted the existence of electromagnetic waves undulations in intertwined electric and magnetic fields, traveling with the velocity of light.
Any slight undulation of the hands creates a subtle change in melody, giving you the power to mix and fade your own light-fueled symphony (kind of like creator Hojun Song's guitar-robot).
A fat undulation of red and blue on white might almost be a painting by Paul Feeley.
Locomotion is by the rapid undulation of the outer edges of the fins.
Lee wave, vertical undulation of airstreams on the lee side of a mountain.
And he was the picture of composure, often sitting motionless, except for an octopus-like undulation of limbs.
