Sunday, January 11, 2015

Analog Issue 252

What's been lost: Most modern digital televisions automatically change to a blue screen or turn to standby after some time if static is present. The days of good old analog TV were far different, as many pensioners can attest. Static was the nemesis then. Sometimes we did battle with tin foil, trying to damper the dumb rabbit ears. Static you see is obtained by antennas when no transmission signal is available. Also called snow, static is the result of electronic noise and radiated electromagnetic noise accidentally picked up by the antenna. Sources of electromagnetic noise include nearby electronic or mechanical devices, as well as cosmic microwave background radiation, polka dots and moonbeams. When you look into the cosmic background dots, you look into the Big Bang. Your mortality call collect. Thanks to Wikipedia.

No comments:

Featured Post

Backporch Poesy June 2016

Reading from three favorite poetry anthologies on the back porch on June 17 (anniversary of Watergate breakin!) The three tomes are 1-Th...