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# What size was Galileo's telescope?

The objective measures 51 mm in diameter, and is biconvex, but the radii of curvature of the surfaces of the two faces are not equal; the focal length is 1,330 mm, the thickness at the center 2.5 mm.

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How does the size of an impact crater compare to the size of the object that creates it?

When a photon is absorbed by an electron, it is completely destroyed. The electron instantly jumps to a new level of energy. The photon ceases to be.

### What did Galileo's compass do?

Galileo Galilei1606/1606 The Galilean compass-not to be confused with drawing compasses-is a sophisticated and versatile calculating instrument for performing a wide variety of geometrical and arithmetical operations, making use of the proportionality between the corresponding sides of two similar triangles. What was Galileo's personality like? Galileo was of average stature, squarely built, and of lively appearance and disposition. Viviani remarks that he was quick to anger and as quickly mollified. His unusual talents as a speaker and as a teacher are beyond question.

### Keeping this in consideration, what were galileo's achievements?

10 Major Accomplishments of Galileo Galilei #1 He invented a hydrostatic balance. #2 Galileo invented a forerunner to the modern thermometer. #3 He is credited with the invention of an improved military compass. #4 Galileo discovered that pendulums were isochronous. You can also ask what are plano convex lens? Plano-convex lenses are positive focal length elements that have one spherical surface and one flat surface. These lenses are designed for infinite conjugate (parallel light) use or simple imaging in non-critical applications. These optic lenses are ideal for all-purpose focusing elements.

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What 3 things did Galileo discover with his telescope?

About 42% of Earth's is gravity on Mars. If you weighed 100 pounds on Earth, you would only weigh 38 pounds on Mars. If you can jump one meter high on Earth, you can jump 2.64 meters high on Mars.

The goddess of ancient Roman mythology was named Juno. She was the queen when she was married to Jupiter. The Romans thought that Juno would warn them of danger.

### Subsequently, what are some devices that use lenses?

Lenses are used in various imaging devices like telescopes, binoculars and cameras. They are also used as visual aids in glasses to correct defects of vision such as myopia and hypermetropia. What is the difference between Keplerian and Galilean telescope? A Keplerian telescope has a converging lens eyepiece and a Galilean telescope has a diverging lens eyepiece. The distance between the image and the eyepiece is the sum of the focal lengths of the two lenses. (Remember that for a diverging lens the focal length is negative.)

By Bathesda Depolis