The Pinhole Scope	Why is the Sky Blue?
Mirrors and Reflection	Why are Bubbles so Colorful?
The Bent Pencil	Color Polarized Light
Lenses	Electrons in Atoms
Fresnel Lenses	X-Rays, UV, and IR
Measurements and Estimates	Optical Microscopy
The Photon	Ion Beam Analysis using PIXE
The Spectrum	Scanning Probe Microscopy
What Causes Rainbows?	Real and Virtual Images
Remote Analysis on Earth

For more information about these topics, view our Book References