Interesting facts

I thought we could start a thread for sharing facts we love or find interesting/fun. Next time we're due to be in a social situation where it might be expected to share a fact as part of introducing ourselves, we can have this thread as a resource to look through so we have something ready. And at least as importantly I think, this can also be a space for info-dumping favourite facts about special interests. I'll start:

Parents
  • This years iGnoble awards are out and one of them was for the scientists who found that hair whorls, like that at the crown of your head, are more likely to grow in a clockwise direction in the northern hemisphere and ant-clockwise in the southern hemisphere! I'm sure theres some important information in there, but I'm not sure what?

Reply
  • This years iGnoble awards are out and one of them was for the scientists who found that hair whorls, like that at the crown of your head, are more likely to grow in a clockwise direction in the northern hemisphere and ant-clockwise in the southern hemisphere! I'm sure theres some important information in there, but I'm not sure what?

Children
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