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)
“How much atonement is enough? The bombing must be allowed as at least part-payment: those of our young people who are concerned about the moral problem posed by the Allied air offensive should at least consider the moral problem that would have been posed if the German civilian population had not suffered at all.”
—Clive James (b. 1939)
“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)