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Results for: 'PE'

7:28

Micro objects

By: plintilh

Definition of Absorption, Diffraction, and Phase objects

2:58

What Refractive index means

By: plintilh

Describing how the velocity of light varies with the medium.

2:44

Phase objects - continued

By: plintilh

Describes how transparent objects may only retard light without diffracting it

2:25

See back focal plane using telescope

By: plintilh

The rear focal plane of the objective can be observed using a telescope insert into the eyepiece tube.

2:42

Spatial filtering in the transform plane

By: plintilh

Using a small aperture slider to remove diffracted orders in the transform plane eliminates detail in the image plane.

1:28

Numerical Aperture vs useful magnification

By: plintilh

A quick estimate of useful magnification: N.A. X 1000.

7:58

Deriving Numerical Aperture = N.A.

By: plintilh

The geometries of diffraction patterns must match the geometries of acceptance angle.

21:21

Numerical aperture revisited

By: plintilh

N.A Plus immersion oil

1:21

End-of-life Choices in Vermont

By: 92csicca

Discuss the continuum of care at end of life with a special focus on Act 39, Vermont’s Death with Dignity law. We will review other care options including unwanted medical treatment, inappropriate medical treatment, voluntary stopping of eating ...