BIOL 400 Lecture Notes - Lecture 12: Protozoa, Giovanni Alfonso Borelli, Hans Lippershey
Document Summary
On the valves in the veins (1603: preventing backflow. Medieval technology stimulated science in 15th and 16th centuries. Screw press: make wine, original printing press. Astronomy, physics, math, philosophy of science, scientific method. Willow tree experiment: dissolved metal in acids combined weight didn"t change, weight of soil didn"t change over 5 years but tree did. Thought there were many types of airs: charcoal experiment. Spiritus sylvester" thought digestion, alcohol fermentation, and wood burning were all same process: fermentation. On the movement of the heart and blood (1628: questions concerning galenic physiology. Established blood circulation in pulmonary and systemic circuits. Supposed inventors: hans lippershey, and hans & zacharias janssen: nobody has solid claim to invention. Involved physics and engineering: organisms are mechanisms like clocks. Brain contained transformed pneuma of animal spirit. Mechanical pulverization of food: wooden blocks in turkey stomach, appearance of wood indicated mechanical digestion.
