Groundbreaking scientific experiments, inventions, and by Robert E. Krebs PDF

By Robert E. Krebs

The center a long time and the Renaissance have been a interval of clinical and literary reawakening. medical improvement and a renewed curiosity in classical technology resulted in new discoveries, innovations, and applied sciences. among 500 and 1600 A.D., medical explorers rediscovered historic Greek and japanese wisdom, which resulted in an eruption of clean rules. This reference paintings describes greater than seventy five experiments, innovations, and discoveries of the interval, in addition to the scientists, physicians, and students accountable for them. members comparable to Leonardo da Vinci, Marco Polo, and Galileo are incorporated, besides entries on reconstructive surgical procedure, Stonehenge, eyeglasses, the microscope, and the invention of smallpox.
Part of a different sequence that levels from precedent days to the 20 th century, this exploration of clinical developments through the heart a long time and the Renaissance might be invaluable to highschool and faculty scholars, academics, and common readers looking information regarding major advances in clinical historical past.

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His best instrument was a 30-power telescope, which is about the power of a good pair of modern binoculars. Galileo made four important astronomy-related discoveries. (1) Although large sunspots were observed by the naked eye at least a thousand years before Galileo’s time, he was the first to use a telescope to view the surface of the sun in detail. ) Galileo’s observations confirmed the movement of darker areas or spots on the sun’s surface, and he used this knowledge as the basis for his conjecture that the sun rotates on its axis.

His telescope was not powerful enough to distinguish this bulge as the rings of Saturn with which we are now familiar. Astronomy 27 (4) Galileo was always fascinated with the number of stars that could be seen with his telescope. ” When he pointed his telescope toward the Milky Way, he saw many more stars than in other portions of the sky. Some were very faint and blended together to form what he thought was a cloud. Today we know this as the Milky Way galaxy. • Johannes Kepler (1571–1630) is another astronomer whose major contributions were made after the year 1600.

Although some of Galileo’s contributions to astronomy were made after the year 1600, he is still considered a Renaissance scientist. In the late 1500s he was the first astronomer known to use a telescope to view and study celestial objects. Either Hans Lippershey (1570–1619) or Zacharias Janssen (1580–1638) invented the telescope in the late 1500s or early 1600s. Galileo learned about this invention and built three models of telescopes of his own designs. His best instrument was a 30-power telescope, which is about the power of a good pair of modern binoculars.

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