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Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light." [1] It is a disorientation-, vertigo-, and nausea-inducing effect of a strobe light flashing at 1 Hz to 20 Hz, approximately the frequency of human brainwaves.
A hide-away strobe light fitted into a headlamp. The strobe light is the coiled glass tube in the bottom of the headlight assembly, near the center of the highlighted region of the picture (click picture to enlarge). The vehicle's stock lighting may also be modified to add flashing and strobe effects.
A common use of a strobe flash is to optimize a car engine's efficiency at a certain rotational period by directing the strobe-light towards a mark on the flywheel on the engine's main axle. The strobe-light tool for such ignition timing is called a timing light. Strobe lighting has also been used to see the movements of the vocal cords in slow ...
Expected to be finished by October, Hilton Head is installing Rectangular Rapid Flashing Beacons to alert drivers of pedestrians at crosswalks. Here’s where they are going.
[23] [59] This usually takes the form of one green light on the dashboard on cars from the 1950s or older, or two green indicator lights on cars from the 1960s to the present, and a rhythmic ticking sound generated electromechanically or electronically by the flasher. It is also required that the vehicle operator be alerted by much faster- or ...
Jannique Martinez says her family has had to endure recordings of loud, screeching monkey noises and recordings of racial slurs directed toward their Virginia Beach, Va., home since July. But ...
Headlight flashing is the act of either briefly switching on the headlights of a car, or of momentarily switching between a headlight's high beams and low beams, in an effort to communicate with another driver or drivers. The signal is sometimes referred to in car manufacturers' manuals as an optical horn, since it draws the attention of other ...
The postgame message of “sticking together” from Matt Eberflus following the Chicago Bears' Thanksgiving Day loss to the Detroit Lions reportedly did not go over well with members of the team.