How Electric Light Changed the Night | Deep Look (YouTube)
Artificial light makes the modern world possible. But not all kinds of light are good for us. Electric light has fundamentally altered our lives, our bodies and the very nature of our sleep.
https://www.youtube.com/watch?x-yt-cl=84503534&x-yt-ts=1421914688&v=Mllam3nKTv4
Download free eBooks, including books for teachers, by David Bruce here:
https://davidbruceblog.wordpress.com/about-the-blogger/
Romance Books by Brenda Kennedy (Some Free)
https://www.smashwords.com/profile/view/smoothie2003
Free PDF book: Honey Badger Goes to Hell — and Heaven
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