1 / 15

Microscopes

Microscopes. Section 7.1. History of the Microscope. 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. Antoine van Leeuwenhoek

Download Presentation

Microscopes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Microscopes Section 7.1

  2. History of the Microscope • 1590 –first compound microscope

  3. History of the Microscope • 1655 – Robert Hooke used a compound microscope to observe pores in cork • He called them “cells”

  4. History of the Microscope • Antoine van Leeuwenhoek • 1st to see single-celled organisms in pond water

  5. Microscope Vocabulary • Magnification: increase of an object’s apparent size • Resolution: power to show details clearly • Both are needed to see a clear image

  6. Types of Microscopes • 1. Compound Light Microscope • 1st type of microscope, most widely used • light passes through 2 lenses • Can magnify up to 2000x

  7. Ocular lens Objective lenses

  8. Types of Microscopes • 2. Electron Microscope • Used to observe VERY small objects: viruses, DNA, parts of cells • Uses beams of electrons rather than light • Much more powerful

  9. Types of Microscopes • Transmission Electron Microscope (TEM) • Can magnify up to 250,000x

  10. Types of Microscopes • Scanning Electron Microscope (SEM) • Can magnify up to 100,000x

More Related