1. Arm - Supports the body tube and is used for carrying the microscope. 2. Diaphragm - Controls the amount of light passing through the opening of the stage and into the microscope. 3. Stage - Supports the slide being used. You place the slide on it. 4. Mirror or Light - Reflects or shines light upward through the diaphragm to illuminate the specimen. 5. Nosepiece - Holds the different objective lenses; allows the lenses to rotate for viewing. 6. Base - Supports
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INSTRUCTIONAL OBJECTIVES 1. Define Ocular: (eyepiece) Objective: provides magnification of 4‚ 10‚ 40‚ and 100 power Low power: 4X 10X High-and-dry: 40X Oil immersion objective: 100X Fine adjustment: is essential for final‚ sharp focusing Coarse adjustment: is used initially for rough focusing Parfocal: as you cane from one objective to another you will find that your microscope is very close to a final focus Sub stage condenser: light focusing lens Iris diaphragm: used to regulate the
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Lab 1: Microscopy and the Metric System Part A: 1. List the components of the compound microscope and their function. 2. determine the total magnification given that you are using a compound microscope with the following objectives: 4x‚ 10x‚ 40x‚ and 100x 3. what is meant by the depth of field? 4. what is meant by the field of view? 5. describe the process of making a wet mount. ________________________________________________________________________________ 1. -Focal adjustment; used
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LAB 4 Read over the parts of the microscope and answer the following questions: 1. What do you call the lens you look through on the microscope? Ocular 2. What is the difference between the ocular lens and the objective lens? Ocular lens is the lens you look through and objective lens is the lens that is close to the stage. 3. Where do you place the slide on the microscope? the stage under the stage clips 4. Which adjustment‚ course or fine‚ do you use when you are observing the
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Name: Angel Simon Pre–Lab Question Ocular lens 1. Label the following microscope using the components described within the Introduction. Experiment 1: Virtual Magnification Exercise Post-Lab Questions 1. At what magnification do you first notice the ragweed pollen? Answer: 1000 2. Which is bigger‚ a rhinovirus or E. Coli? Answer: E. Coli 3. Based on the magnification‚ how many of the E. Coli can fit into the same space as the
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MICROSCOPY Objective: 1. To learn how to use both a dissecting and a compound microscope effectively and efficiently (lighting‚ focus‚ magnification‚ resolution)‚ and to practice manipulating small organisms Principals: 1. The smallest object viewable under a compound light microscope is limited by resolution or resolving power (ability to distinguish between two nearby points) and not magnification. 2. Mircoscope resolution is limited by the wavelength of the source of illumination (visible
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Microscope * Head/Body houses the optical parts in the upper part of the microscope * Base of the microscope supports the microscope and houses the illuminator * Arm connects to the base and supports the microscope head. It is also used to carry the microscope. * Eyepiece or Ocular is what you look through at the top of the microscope. Typically‚ standard eyepieces have a magnifying power of 10x. Optional eyepieces of varying powers are available‚ typically from 5x-30x. * Eyepiece
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Johnathan Wright Section #112 Laboratory 0: “400 Years of the Telescope” The PBS documentary outlines our progressive journey in the field of astronomy and the resulted revolutionary discoveries from the continually improving technologies. The history of telescopes first began in the sixteen hundreds‚ when Hale’s invention of refracting telescopes drastically changed people’s view of the Universe at the time‚ for the view from the telescope revealed the Universe as dynamic‚ as opposed to static. Later
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Introduction The Hubble Space telescope has been Orbiting the Earth for over two decades‚ Hubble has helped to answer some of the most compelling astronomical questions of our time – and uncovered mysteries we never knew existed. Investigating everything from black holes to planets around other stars‚ Hubble has changed the face of astronomy‚ ushering in a new chapter of humanity’s exploration of the universe. Although named to honor astronomer Edwin Hubble‚ the telescope was championed by astronomer
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The Hubble Space Telescope was launched after a two-year delay on April 24th‚ 1990 from the space shuttle Discovery. This telescope has a length of 13.2 meters and a weight at launch that was 11‚110 kg. It is a space-based optical reflective telescope that observes distant and faint objects. (NASA) One of the most important discoveries of the Hubble Space Telescope has to be that it has revealed the age of the universe to be 13 to 14 billion years old‚ this was a huge improvement from the earth based
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