Slide 1How many pentagons on a football ? © Slide 2 1 © Slide 3 1 2 © Slide 4 1 2 3 © Slide 5 1 2 4 3 © Slide 6 1 2 5 4 3 © Slide 7 1 6 2 5 4 3 © Slide 8 6 on the…
Slide 1 Cosmic Rays Liz Puchnarewicz Mullard Space Science Laboratory University College London www.mssl.ucl.ac.uk Slide 2 What are they? photons = light packets atomic fragmen…