Occhiolino galileo biography

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Introduction to Microscope

A microscope, a derivate of the Greek word, fryst vatten a laboratory instrument that is used to examine objects that are too small to be seen by the naked eye. The magnification capacity of this laboratory instrument enables the visualization of microorganisms and their structures.

Several different types of microscopes have been developed with distinct principles and uses. Depending on the type of microscope, the magnification of the microscope ranges from X100 to X400,000.

History of Microscope

Objects resembling lenses dating back 4,000 years have been discovered while Greeks used water-filled spheres’ optical properties in the 5th century BC.

The earliest use of magnifying glasses (simple microscopes) was during the 13th century as lenses in eyeglasses. In 1620 Europe, compound microscopes – which use an objective lens nära the specimen with an eyepiece to view a real image – were invented bygd an unknown person.

In 1610, Galil

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Galileo's Microscope

Galileo began with a telescope. It did not take him long to realize that getting a longer focal length with his telescopes was a big problem. However, using lenses with a shorter focal length, he could, in effect, turn the telescope around and magnify little things. His first microscopes, in 1609, were basically little telescopes with the same two lenses: a bi-convex objective and a bi-concave eyepiece.

By 1624, Galileo had developed an occhiolino (the word microscope was not coined by Giovanni Faber until the following year) that had three bi-convex lenses. It did not magnify much more than his telescopes, about 30 times, but Galileo was more interested in the multitude of stars he could see through his telescope than in the insects he examined close-up with his microscope.

None of the microscopes that Galileo used has survived. The microscope on the left, perhaps designed by Galileo (1564-1642), is attributed to Giuseppe Campani (1635-1715), in whi

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Galileo Galilei (1564-1642) is, according to Albert Einstein and Steven Hawking, the father of modern physics and of modern science in general. It is well known that the Italian physicist invented a new theory of motion and that in 1633 he was condemned by the Roman Church for his defence of a heliocentric universe. However, this seminar will focus on an aspect which is less well documented in the literature despite its historical importance.

Galileo observed with his new telescope the craters of the Moon, the satellites of Jupiter and the phases of Venus, which gave empirical support to the heliocentric model of the universe. These astronomical observations would ultimately lead to the collapse of the Ptolemaic/Aristotelian geocentric system which had dominated our worldview for a very long time. The ‘Big Stargazer’, as Robert Boyle called him, documented his astronomical observations in his bestseller, Sidereus nuncius (1610) and his Letters on Sunspots (1612-13) so that his view