Science & Medicine - line art (aa4) (Scientific) Physics Mechanical Power Archimedes (287-212 BC) who worked out the principle of the lever and other simple machines demonstrated them by pulling a ship onto land by himself. He said of the principle of

Science & Medicine - line art (aa4) (Scientific) Physics Mechanical Power Archimedes (287-212 BC) who worked out the principle of the lever and other simple machines demonstrated them by pulling a ship onto land by himself. He said of the principle of

Science & Medicine - line art (aa4) (Scientific) Physics Mechanical Power Pulley Archimedes (287-212 BC) who worked out the principle of the lever and other simple machines demonstrated them by pulling a ship onto land by himself. He said of the princip

Science & Medicine - line art Mechanical Power Fulcrum Archimedes (287-212 BC) who worked out the principle of the lever and other simple machines demonstrated them by pulling a ship onto land by himself. He said of the principle of leverage - "Give me

Science & Medicine - line art Physics Mechanical Power Archimedes (287-212 BC) who worked out the principle of the lever and other simple machines demonstrated them by pulling a ship onto land by himself. He said of the principle of leverage - "Give me

Science & Medicine - line art (Scientific) Aeronautics - Aerial Machines Mechanical Bird