Word: blackboard
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Dates: during 1930-1939
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...teacher finishes chalking sums on the Multi-Use Blackboard Fixture. The pupils step up, reverse the individual sections of the board, pull them out like easels, set to work painting, their work pinned to a cork surface...
...because he felt the Undersecretary should be "one familiar with the lowly and despised occupation of farming." Said he: "What is needed for that job is a farmer who knows what overalls are for, not a man who knows only how to wield a pointer in front of a blackboard...
Armed with this mighty number Sir Arthur started off on an important synthesis, which last week in Washington he exhibited on a blackboard. Relativity treats matter as mass; quantum theory treats it as waves of probability. Sir Arthur's new quadratic equation treats it as both. Three years ago Cambridge University's astute young Paul Adrien Maurice Dirac, writing the most complete exposition of quantum theory in existence, saw "the relativistic formulation of the quantum mechanics" as a great problem which physicists would sooner or later have to tackle. What Sir Arthur showed last week seemed a good...
...epoch of great fear. Fear forces the talented intelligentsia to deny their mother ... to falsify their social origin. . . . Man is becoming suspicious, secretive, disloyal, slovenly, unprincipled. Fear breeds idleness, train delays, interrupted production, general poverty and hunger. No one does anything without orders, without reference to the blackboard, without threat of arrest or deportation...
...never quite in tune and which goes off at all hours of the day and night! At least one can give paregoric to a puppy or a baby. "Referring to the mathematics days, do you remember your first day's class at Groton? You stood up at the blackboard-announced to the class that a straight line is the shortest distance between two points-and then tried to draw one. All I can say is that I, too, have never been able to draw a straight line. I am sure you shared my joy when Einstein proved that there...