By observing, we introduce a human element to what’s really there.

On one of my rare moments of astronomy time I was aiming the big scope to a patch of nebulosity I had seen in the south of the constellation Monoceros, the unicorn. It was supposed to be the seagull nebula, but I was slightly off in my positioning and was attracted to this rather brighter nebula to the upper right instead. It was around the star HIP34116 (a mag. 7 sub-arcsecond double) and it looked like a heart on my camera, but on processing the heart shape appeared again in a larger form. I’m sure it’s not just me that can see a heart. What’s more, a broken heart! A giant heart-shaped nebula - it always amazes me what stuff is up there. However, hearts don’t really look that shape, I’ve seen quite a few dissected. The shape, called a cardoid (for reasons you may well suss out), is a name for a type of mathematical curve, θ = r². I conclude thus mathematics is related to biology (and that was via astronomy). P.S. As I'm posting this, a Radio 4 programme on maths in biology has just come on.