Sparks and Allied Phenomena
Horizontal lines randomly arranged on a television screen may be caused by sparking in a malfunctioning electrical device. Electric railways can also be a strong source of this type of interference.
Other possible sources of such interference include:
- Thermostats, fridges, freezers, fish tank heaters, central heating systems
- These can create sparks as they turn on or off; as they age they can become worse. In some rare cases they can create non-stop interference through sparking.
- Electric motors
- Motors which have a commutator can suffer from sparking at the brushes.
- Ignition systems on cars and motorbikes.
Read more about this topic: Television Interference
Famous quotes containing the words sparks and, sparks, allied and/or phenomena:
“The genius of reading and of gardening are antagonistic, like resinous and vitreous electricity. One is concentrative in sparks and shocks: the other is diffuse strength; so that each disqualifies its workman for the other’s duties.”
—Ralph Waldo Emerson (1803–1882)
“On every tree a bucket with a lid,
And on black ground a bear-skin rug of snow.
The sparks made no attempt to be the moon.
They were content to figure in the trees
As Leo, Orion, and the Pleiades.
And that was what the boughs were full of soon.”
—Robert Frost (1874–1963)
“It is certain, in any case, that ignorance, allied with power, is the most ferocious enemy justice can have.”
—James Baldwin (1924–1987)
“The television screen, so unlike the movie screen, sharply reduced human beings, revealed them as small, trivial, flat, in two banal dimensions, drained of color. Wasn’t there something reassuring about it!—that human beings were in fact merely images of a kind registered in one another’s eyes and brains, phenomena composed of microscopic flickering dots like atoms. They were atoms—nothing more. A quick switch of the dial and they disappeared and who could lament the loss?”
—Joyce Carol Oates (b. 1938)