Word: phosphors
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...explain that the image is created by laser beams reflected onto a rapidly rotating screen, much as a television image is created by an electron beam scanning across a stationary phosphor screen...
...noisy streets and legislatures and the bare chambers of the individual conscience, that most fundamental question -- Who decides whether a woman can have an abortion? -- must itself be redecided. With that, America is entering new moral and political territory, rough and uncharted, but lit by the phosphor of righteous certainties. And as the combatants square off with their irreconcilable notions of life and liberty, the middle ground, what there is of it, promises to become scorched earth...
...corresponding sequence of electrical signals. These signals are sent to an electron "gun" housed in the vacuum tube behind the computer's video screen. This gun, following the sequence of signals, fires bursts of electrons at the back side of the screen. The electrons strike bits of phosphor that coat the screen and energize them, lighting up a pattern of dots. These dots form the shape of alphabetic characters, spelling out the message: DO YOU WANT ANOTHER CARD...
Thankfully, the programmer does not have to worry about every electron and phosphor dot. He has enough on his hands typing his commands into the computer and testing them to see if they do what he meant them to do. Even a program for playing blackjack can quickly grow to be hundreds of lines long, each line densely packed with convoluted commands and alphanumerical characters. If there is even one character out of place in those hundreds of lines, chances are the program will not work properly. These software "bugs," as programming mishaps are called, can take weeks to find...
Kaleidoscope Console. John Seery, 28, disdainfully tilted a 17-in. color set on its back and imprisoned it in a quartz-like block of plastic. "When the TV stops functioning," explains Seery, "the work is complete." Earl Reiback, 33, an M.I.T.-trained nuclear physicist, stripped the phosphor coating from the glass screens on three sets, allowing the viewer to see electrons gleaming eerily inside the colorfully painted picture tube...