PPT-the Microscope Types of Microscopes

Compound microscope Dissecting microscope Scanning electron microscope SEM Transmission electron microscope TEM The compound microscope A microscope It is a tool that is used to study things . Microscopes are delicate and expensive instruments they should be handled with utmost care Before you use the microscope your instructor will explain its proper use Following are rule s that will protect the microscope and insure that you can make m The Big Questions. How do we even know cells are even there?. What has advanced our understanding of cells?. Specification Link. Describe how plant and animal cells can be studied in . greater detail . Unit 1 – Intro to Science. Types of Microscopes. Electron Microscope. Uses a beam of electrons to magnify image greater than 1000x (1000 times). Kills observable cells so not used to view live specimens.. Forensic Scientists. Forensic scientists help resolve legal matters through scientific research, analysis and experimentation. . This often involves using microscopes to examine blood and other biological samples, specks of fiber and other materials found at crime scenes and even handwriting.. Compound Light Microscope. Electron Microscopes. (TEM and SEM). Overview of Microscopes. Magnification. – increase of an object. ’. s apparent size. Total . magnification:. . mag. . of eyepiece x mag. of objective lens. History of the Microscope. Hans and Zacharias Janssen- (1595) Eyeglass crafters- Magnify object 3-10x . Robert Hooke- (1655) Observed pores on corks and called them "cells". History of the Microscope. Introduction to cells. Cells form the parts of an organism and carry out all of its functions.. Cells are the basic units of structure and function in living things.. What are cells?. The structure of a living thing is determined by the amazing variety of ways its cells are put together.. Optical Microscope. [photograph]. . Retrieved from https://. commons.wikimedia.org. /wiki/File:Optical_microscope_nikon_alphaphot_+.jpg. Microscopes:. Microscopes are some of the most commonly used pieces of lab equipment. - .  the models found in most schools, use compound lenses to magnify objects. The lenses bend or refract light to make the object beneath them appear closer.. Common magnifications: 40x, 100x, 400x. 1590. –first compound microscope. History of the Microscope. 1655 – . Robert Hooke. used a compound microscope to observe pores in . cork.. He called them . “cells”. History of the Microscope. DEPARTMENT OF MICROBIOLOGY MTN COLLEGE MADURAI. Definition :  An optical instrument that uses a lens or a combination of lenses to produce magnified images of small objects  especially of obje video (link on the website). http://www.youtube.com/watch?v=X-. w98KA8UqU. Warm up . Why would we want to use a microscope to see things? When would it be better to use a telescope or binoculars?. Week 12, Day One. Science. Learning intention. To know how microscopes have advanced over time and to be able to . compare the advantages and disadvantages of the different types of microscopes.. You will need. •  A pen and paper.. DENTAL COLLEGE, LATUR (MAHARASHTRA). DEPARTMENT OF ORAL PATHOLOGY CONDUCTING ONLINE COURSE. A Webinar on: Hidden eyes IN PATHOLOGY. 1. DEPARTMENT OF ORAL PATHOLOGY AND . MICROBIOLOGY.