Calculate the number 722
NUMBERMANIA: Calculate the number 722 using numbers [9, 3, 2, 4, 71, 274] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers: 1
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First radio entertainmentIn 1906, Reginald A. Fessenden gave what is generally considered to be the first broadcast of entertainment by radio, as part of the ongoing promotion of the new system using his new alternator- transmitter. He had been working since 1898 on being able to transmit audio, not just dots-and-dashes, since 1898. Three days earlier, he had demonstrated it to invited representatives from a number of organizations, among them was the American Telephone & Telegraph Company. Fessenden and his financial backers dearly hoped AT&T would be so impressed it would buy the rights to the patents which covered the new system. The AT&T Co. found it was was “admirably adapted to the transmission of news, music, etc.”simultaneously to multiple locations, but decided that it was not yet refined enough for commercial telephone service. |