Printer Friendly Version >>>. The Pony Express made its first run on April 3, 1860 and immediately captured the imagination of the nation. It had been established to provide a speedy method of delivering mail over a two thousand mile route that stretched between St. Joseph. Missouri and Sacramento, California.
Saliva drug test detection times. Drug detection times simply indicate a specific time in which a test can reveal the presence of a drug in the urine, saliva or hair of the user. The specific time will reveal the first time the drug will show up in your body for the first time you took it and the time your body will be clean.
Error detection is the detection of errors caused by noise or other impairments during transmission from the transmitter to the receiver. Error correction is the detection of errors and reconstruction of the original, error-free data. History. The modern development of error-correcting codes in 1947 is due to Richard W. Hamming.