What did most of Galileo's students learn at the University of Padua? Detailed answer

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What did most of Galileo's students learn at the University of Padua? Detailed answer

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What did most of Galileo's students learn at the University of Padua?

At the time when Galileo Galilei was a professor of mathematics at the University of Padua (1592-1610), this educational institution consisted of two departments - legal and artistic. The latter, on which Galileo taught, included theologians, philosophers, and physicians.

Most of Galileo's students were trained in medicine. Having learned the basics of geometry, they moved on to the study of astronomy, necessary in order to begin astrology, a subject that every self-respecting physician should know (or at least pretend to know).

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

What is the brightest star in the night sky?

The brightest star in the earth's night sky is Alpha Canis Major, better known as Sirius (Greek for sparkling). Located at a distance of 8,6 light years from us (one of the closest stars to us, the seventh in order of distance from the Sun), Sirius has an apparent magnitude of minus 1,46. The diameter of Sirius is almost twice that of the sun, its mass is 2,35 masses of our star, the temperature on its surface is about 10 thousand degrees (on the visible surface of the Sun it is approximately 6000 kelvins). At the same time, the luminosity of Sirius is 24 times greater than the solar one.

Due to the relative proximity of Sirius to us, its movement in the celestial sphere is much more noticeable than that of other stars: over the past two thousand years, it has changed its position in the sky by about 44 arc minutes, which is one and a half diameters of the moon on a full moon. In its movement in the direction of the observer's line of sight, Sirius is approaching us at a speed of about 8 kilometers per second.

Based on the observed "wobbles" of Sirius in its movement across the celestial sphere, the German astronomer and mathematician Friedrich Bessel predicted the presence of an invisible satellite in Sirius, circulating with Sirius around a common center of mass with a period of 50 years. This prediction of Bessel was brilliantly confirmed in 1862 during tests of a new telescope by the American optician Alvan Clark.

Thus, Sirius is a double star, the second component of which is a white dwarf, known as Sirius B. It has a much lower luminosity (8,5th magnitude), and therefore is difficult to distinguish next to the radiance of Sirius itself.

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The solar wind creates an electrical charge on Phobos 29.10.2017

NASA is considering the Martian moon Phobos as a potential home base for studying Earth from the Red Planet, but powerful solar winds could derail those plans.

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Because Phobos has no atmosphere or magnetosphere, it passes directly through the solar wind and absorbs electrically charged particles during the day, leaving a void at night. As a result, negatively charged electrons from the solar wind fill this void and statically charge the satellite.

"We have found that astronauts or rovers could pick up significant electrical charges when passing the night side of Phobos - the side facing Mars during the Martian day. Although these charges are not large enough to harm astronauts, they are sufficient to affect sensitive equipment. " said William Farrell, lead author of the study at the Goddard Space Flight Center.

Theoretically, astronauts could be flown to Phobos, from where they would remotely control robots on the surface of Mars, reducing the significant time delay experienced by operators on Earth.

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