A New Kind of History Book

It’s widely known that books are usually made from trees (except for electronic ones, of course). However, it now seems that books actually can be trees. Researchers for the Internet Journal Science have found a very interesting way to trace the rise and fall of civilisations and sudden changes in climate simply by looking at tree rings:

http://www.bbc.co.uk/news/science-environment-12186245

Posted in Thing of the Day Tagged with: ,

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