Bring NaCl, sunflower/sow thistle/mealworm dissection, MARKERS.
P. 42 missing clips. Hold by arm & base!You can PHOTO thru ocular to help study!!!

Assume hydra stalk fits 10 times across low power: µ=micro(10^-6)! Use didinum for organism ABC.

Leica CME: clockwise! Nikon YST-2 counterclockwise (Light Rheostat Control no longer in diagram).

Leica DM500 160mm=tube length 0.17mm=coverslip thickness; achromatic lens red & blue same focal length

Pupil is aperture (hole in center of iris); iris is diaphragm that serves as the aperture stop.

Do not high power measure field of view -> just divide low/4.

Waves/wavelength colors, electrons below 1/10 µm.

Threads: blue, red, yellow:

• Resolution =
  Refractive Index * wavelength / Numerical Aperture (denominator).
• 1080p=vertical lines
• Leeuwenhoek 300X ash, protists, bacteria, sperm, muscular fibers; drop of water.
• Hooke 30X philosopher/architect/scientist/astronomer: cork oak dead "cells" outer bark.
• Laser monochromatic coherent (in phase), polarized.
• Last question: diagram is for low power: calculate field of view at high power ~1.6 mm.
• 25 cm = 9.8 in. Micron = um; angstrom = 0.1 nano
• Depth of field: Z = (2 * R.I. * wavelength)/N.A.²
  Z decreases as N.A. increases.

Fisher Scientific dissecting microscope. Meiji EMZ13TR
Online tutorial