MAGNIFICATION By Hollyn Trudell Hannah Bennett Abby Kraus

MAGNIFICATION By Hollyn Trudell, Hannah Bennett, Abby Kraus, and Meredith Hauck

Defined as: The process of enlarging the size of something, as an optical image Something that has been magnified; an enlarged representation, image, or model

History In the year 100 AD, the Romans used glass to magnify objects In 1250, Roger Bacon invented the magnifying glass In the 1400’s, the first glasses were made In 1590, the Dutch made the first microscope In 1609, Galileo improved the microscope

Linear Magnification Used for real images projected on a screen For example, an overhead or projector Usually measured in millimeters or inches

Angular Magnification Used for optical instruments with an eyepiece For example, binoculars, telescope, microscope, glasses, and a magnifying glass

Factors for Magnification The size of objects The possible viewing distance from the object The length of time needed

Uses of Magnification Today Telescopes Magnifying Glass Microscope Glasses/Contacts Overhead Projector Binoculars

Uses of Magnification Today (cont. ) Can magnify sounds (called amplification) such as a megaphone or microphone Generalized term for increasing the detail of something (ideas or emotions) Medical use

Bibliography www. google. com www. ask. com www. wikipedia. org www. microscope-microscope. org