A wheel has 3 lights beaming on it, Green, yellow and red. You want to equalize these 3 lights because the wheel is part of a Big Show, on stage, and you want everything perfect. So does your Stage Director. You asked around for the answer of C/3, and all you got was sarcasms, most ofwhich responded with you saying: ‘of Course I measured the Circumference and it was 75’. They said, ‘to focus each of your 3 lights to a suitable area of 1/3rd of C you should have instead measured C/3 in one third of the time, then you would not encounter this problem’.
