The speed of propagation is related to the size of the axon. The speed of action potential propagation is usually directly related to the size of the axon. Big axons result in fast transmission rates. For example, the squid has an axon nearly 1 mm in diameter that initiates a rapid escape reflex. Increasing the size of the axon retains more of the sodium ions that form the internal depolarisation wave inside the axon.
About the only thing known for sure is that the 119th Boston Marathon will be held on Monday, April 20, 2015. As for everything else, the initial discussions about next year are already underway. But itâs unlikely the race will return with a field of approximately 36,000 runners in 2015.
on april 19 1897 the first boston marathon is run in boston massachusetts john j mcdermott of new york ran the 24 5 mile course of the all male event in a winning time of 2 55 10the first modern marathon was held at the 1896 olympics in athensn 1986 prize money was awarded to boston marathon winners for the first time john a kelley who ran his first boston marathon in 1928 holds the record for most races started 61 and most completed 58