why is the sky blue?

Speedygeese running Vets Track last night
60m
M65 Garry Maher 8.99 89.4%

800m
W55 Maria O'Reilly 2:51.52 81.3%
W50 Helen Larmour 2:54.88 75.5
W30 Thea Zimpel 3:30.19 53.9

Spiral 7
1 Maria O'Reilly W55 12:47
3 Helen Larmour W50 12:25
15 Thea Zimpel W30 17:47
18 finishers

What confused me about university physics and applied mathematics was that they only explained things once they had been observed and never predicted other things. And never answered the real "why?".