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.
The inaugural marathon had 7,741 entrants, 6,255 of whom completed the race. The first Men's Elite Race was tied between American Dick Beardsley and Norwegian Inge Simonsen, who crossed the finish line holding hands in 2 hours, 11 minutes, 48 seconds.he London Marathon, one of the six World Marathon Majors, has been contested by men and women annually since 29 March 1981. Set over a largely flat course around the River Thames, the marathon is 26.2 miles (42.2 km) in length and generally regarded as a competitive and unpredictable event, and conducive to fast times.