Perspectives on Scale
v On 7 July 1999  Moroccan Hicham El Guerrouj ran a
mile in 3 minutes 43.13 seconds, 1.26 seconds better
than Noureddine Moreceli
o El Guerrouj “smashed” “eclipsed” “shattered” record
v Roger Bannister broke the “4 minute mile barrier” in
1954 with 3:59.4
v As a rate this is an astonishing improvement in 45
years from 15.04 mph to 16.13 mph, or 7%