Do you ever find yourself wondering about something you must have known when you were a kid, but you’ve long since forgotten? I do all the time. One early rainy morning this week, I noticed the daisies had their petals up, like little umbrellas blown inside out. Only a couple of days before, they were fully open, as if the yellow centres were little mirrors of the sun and the petals were rays of light. I found myself wondering if they close up because it’s dark or because it’s raining. It feels like something I would have known when I was little. Luckily, Google’s there to plug those kind of…