Biconvex Lens 2
Russell Kightley
Parabolic Reflector 2
Russell Kightley
Myopia or Short Sightedness Poster
Russell Kightley
Biconcave Lens 2
Russell Kightley
Hypermetropia or Long Sight Poster
Russell Kightley
Anaglyph of Volvox a spherical colonial green alga
Russell Kightley
Diverging Converging Lenses and Mirrors
Russell Kightley
Glass Ball 2
Russell Kightley
Glass Block 2
Russell Kightley
Diverging Lens Converging Lens
Russell Kightley
Anaglyph of Influenza virus cutaway showing internal structure 1
Russell Kightley
Anaglyph of Rabies virus
Russell Kightley