22 Tricks That Will Turn You Into A Keyboard Ninja - If you want to work faster on your computer then using computershortcuts will definitely help. Become a super fast keyboard ninja with these 22 tricks!
In his educational books on health and anatomy, German physician Fritz Kahn repeatedly drew on the old analogy of the human body as a machine. This poster from 1926 visualizes human metabolism as a process of industrial production.
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The Supercontinent Pangaea of the Triassic Period - A map of the Earth around 250 to 200 million years ago featuring Gondwanna, Laurasia and Pangaea the Supercontinent. Populated with Dinosaurs, Therapsids, Pterosaurs, and other prehistoric beasts.