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1.5 Technological Advances of the Microscope

1.5 Technological Advances of the Microscope. (Text pages 17 and 18). Key Ideas. What are the different types of microscopes and how are they used?. Single- lens microscope (SLM) The year 1660’s 1 lens = 10x magnification 2. Compound light microscope (CLM) The year 1857 FSJSS 2 lenses

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1.5 Technological Advances of the Microscope

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  1. 1.5 Technological Advances of the Microscope (Text pages 17 and 18)

  2. Key Ideas • What are the different types of microscopes and how are they used?

  3. Single- lens microscope (SLM) • The year 1660’s • 1 lens = 10x magnification 2. Compound light microscope (CLM) • The year 1857 • FSJSS • 2 lenses • Glass lenses and light • Increasing thickness of lens= increasing mag. (can become blurry) • Max mag. = 2000 x • Any part of cell can be seen

  4. 3. Transmission electron microscope (TEM) • The 1930’s • 2 000 000 x mag. • electrons (not light) pass through cells • very thin slices of cells • dead cells

  5. 4. Scanning electron microscope (SEM) • In the 1980’s • Electrons bounce off of cells • Thickness does not matter • Only 3 D images (out side of cell) • Less mag. than TEM

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