I know that 'the sky is blue because higher frequency blue wavelengths are scattered more than red'. What has always confused me is that when I imagine this, I imagine the blue wavelengths bouncing around between atoms in the atomosphete. Whilst red light interacts less, so travels through relatively unimpeded. To me that feels like the red light should be what reaches our eyes as these frequencies can make it through the atmosphere without being scattered. Obviously I'm wrong. But can someone explain in laymens terms why this picture is incorrect, and what I should be picturing? Thanks.