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)
“Courtship was a serious business for the reason that everybody knew when a young couple began to ‘set up’ with each other. They could tell by the sparks flying from the chimney late at night.”
—State of Indiana, U.S. public relief program (1935-1943)
“It is certain, in any case, that ignorance, allied with power, is the most ferocious enemy justice can have.”
—James Baldwin (1924–1987)
“Many of the phenomena of Winter are suggestive of an inexpressible tenderness and fragile delicacy. We are accustomed to hear this king described as a rude and boisterous tyrant; but with the gentleness of a lover he adorns the tresses of Summer.”
—Henry David Thoreau (1817–1862)