A minister delivered a sermon in 10 minutes one Sunday morning, which was about half the usual length of his sermons. He explained, "I regret to inform you that my dog, who is very fond of eating paper, ate that portion of my sermon which I was unable to deliver this morning."After the service, a visitor from another church shook hands with the preacher and said, "Reverend, if that dog of yours has any pups, I want to give one to my minister."
Harold Stephen BlackDied 11 Dec 1983 at age 85 (born 14 Apr 1898).American electrical engineer who discovered and developed the negative-feedback principle, in which amplification output is fed back into the input, thus producing nearly distortionless and steady amplification. In 1921, Black joined the forerunner of Bell Labs, in New York City, working on elimination of distortion. After six years of persistence, Black conceived his negative feedback amplifier in a flash commuting to work aboard the ferry. Basically, the concept involved feeding systems output back to the input as a method of system control. The principle has found widespread applications in electronics, including industrial, military, and consumer electronics, weaponry, analog computers, and such biomechanical devices as pacemakers. |
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