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In his work on Newton's rings in 1671, he used a method that was unprecedented in the 17th century, as "he averaged all of the differences, and he then calculated the difference between the average and the value for the first ring", in effect introducing a now standard method for reducing noise in measurements, and which does not appear ...
The V.90 standard was approved in September 1998 and widely adopted by ISPs and consumers. [23] [24] The ITU-T V.92 standard was approved by ITU in November 2000 [25] and utilized digital PCM technology to increase the upload speed to a maximum of 48 kbit/s. The high upload speed was a tradeoff.