• Light Rays
  - Reflection and the Ray Model of Light
  - The Law of Reflection (diagram)
  

• Solar Camera
  - All about the Sun
  - Aphelion Day
  - Could the Ancient Egyptians Have Observed Sunspots?
  - Christmas 2000 Eclipse
  - Safe Eclipse Viewing
  

• Camera Obscura
  - The Magic Mirror of Life
  - The Greenport Camera Obscura
  - Camera Obscura photos by Charles Schwartz
  - The Camera Obscura : Aristotle to Zahn
  

• Pinhole Cameras
  - History of the pinhole camera
  - Pinhole photography by John Grepstad
  - Build a shoebox pinhole camera
  - The Pinhole Gallery (www.pinhole.org)
  - Physics of the pinhole camera
  

• The Sun in the Church
  - The Sun in the Church (diagram)
  - The Sun in the Church (book review)
  - The Sun in the Church (excerpt)
  

• Optical Lever
  - Optical levers for measuring tiny forces
  - Optical levers in the atom force microscope (AFM)
  - "Twice the angle" (diagram)
  

• Mirrors
  - Reflection of light in mirrors
  - Laserlinks sites on reflection
  

• Arago's Spot
  - Arago spot demonstration
  - Measurements on Arago's Spot
  - Dominique Francois Jean Arago
  

• Diffraction
  - Diffraction demonstrations
  

• Polarized Light
  - How polarizers really work
  

• Microwave Optics
  - Microwave polarization, now and ...
  - ... 100 years ago !!
  

        23-January-2001