2015 Telescopes in Astronomy Telescopes have proven to be one of the greatest inventions in the science of astronomy. This instrument‚ which makes far-away objects more visible has facilitated both learning about and understanding our universe. This paper will discuss the importance of telescopes‚ their three major designs‚ and the strengths and weaknesses of different locations for telescopes. In addition‚ this paper will discuss the frequencies of light and the role they play in telescopes. Without
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Although any telescope (or steadily-held binoculars) will allow the phases of Venus to be seen‚ the planet is a notoriously difficult one to observe‚ for three main reasons. Firstly‚ whenever the planet is visible (shortly before sunrise or after sunset) it is positioned at a low altitude (angle above the horizon) where it is immersed in haze and atmospheric turbulence‚ which adversely affects the quality of the image seen in the telescope. Consequently most telescopic observers prefer to view the
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College of Arts and Sciences Central Luzon State University‚ Science city of Muñoz‚ Nueva Ecija The History • Many people experimented with making microscopes • Was the microscope originally made by accident? (Most people were creating telescopes) • The first microscope was 6 feet long!!! • The Greeks & Romans used “lenses” to magnify objects over 1000 years ago. The History Zacharias Jansen 1588-1631 The “First” Microscope The History • Hans and Zacharias Janssen
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Lab Title: Microscopy Objective: To learn how to use and care for a microscope and to know the parts of a compound microscope and to efficiently use the microscope to focus on specimen. Introduction A microscope is an optical instrument used for viewing very small objects‚ typically magnified several hundred times. It consist of different lenses such as: Scanning = 4X‚ Low power = 10X‚ High power = 40 or 43X‚ Oil Immersion = 100X. A microscope is an instrument
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Using a Compound Light Microscope Purpose: The purpose of this lab is to 1. Learn the parts of a compound light microscope. 2. The functions of those parts. 3. Proper use and care of the microscope. 4. Learn the technique of preparing wet-mount slides. Materials: * Compound light microscope * Soft cloth * Microscope slide * Cover slip * Dropper * Scissors * Newspaper Procedures: Part A. Care of the Compound Light Microscope. Step 1: Always carry
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A microscope (from the Ancient Greek: μικρός‚ mikrós‚ "small" and σκοπεῖν‚ skopeîn‚ "to look" or "see") is an instrument used to see objects that are too small for the naked eye. The science of investigating small objects using such an instrument is called microscopy.Microscopic means invisible to the eye unless aided by a microscope. There are many types of microscopes‚ the most common and first to be invented is theoptical microscope which uses light to image the sample. Other major types of microscopes
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Light Microscopy Lab Lab write-up 1 Parveen Rajper Biology 101 Principles of Biology 1 September 29‚ 2012 Introduction: The light microscope helps see the microscopic world that the naked eye cannot see. If there were no microscopes in the world‚ than it would be very difficult to understand the many particles that surround the living world. The purpose of this lab experiment is to become familiar with a microscope. It is hypothesized that it will be difficult
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Laboratory Report: Observing Bacteria Purpose: Is to gain knowledge on how to use a microscope and oil immersion lens while observing prepared bacterial slides and also to prepare slides for observable bacteria culture from yogart. Procedure: Exercise 1: Using the Microscope - Viewing Prepared Slides I started out by reading and reviewed the science lab safety reinforcement Agreement and the instruction to oil immersion lens. After setting up my lab station I view the six prepared slides
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Definition of the parts of the microscope 1. Stage The horizontal surface upon which the slide is placed is called the stage. The slide is held in place by spring loaded clips and moved around the stage by turning the geared knobs on the stage. Th stage has two perpendicular scales that can be used to record the position of an object on a slide. This is useful if you want to quickly relocate an object. 2. Coarse adjustment The coarse adjustment knob located on the arm of the microscope
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1) The condenser lens concentrates light and makes illumination of image more uniform. 2) The bending of light is also known as refraction. 3) Total magnification = ocular lens magnification x objective lens magnification. 4) The total magnification of an image is 1200x and the magnification of the ocular lens is 10x. What is the magnification of the objective lens? Y = objective lens 1200x = 10x X y 1200x / 10x = y y = 120x Objective lens magnification = 120x 5) The limit of resolution
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