20nov15
List of VPython examples 
bounce.py*
bounce2.py*
boxlighttest.py*
camera.py*
colorsliders.py*
conch.py*
controlstest.py*
convex.py*
crossproduct.py*
crystal.py*
differential_gear.py*
dipole.py*
doublependulum.py*
drape.py*
electric_motor.py*
eventHandlers.py*
extruded_columns.py*
extrusion_examples.py*
extrusion_overview.py*
faces_cone.py*
faces_heightfield.py*
flower128.tga
gas.py* ;; particle system, one use of slice operation
graphtest.py*
gyro.py*
gyro2.py*
hanoi.py*
keyinput.py* ;; uses scene bind
labels.py*   ;; attached to frames?
lathe.py*
lorenz.py*
mandelbrot.py*
material_test.py*;; graffiti, poll key+mouse, 
medusa.py*
orbit.py*
planar.py*
randombox.py*
stars.py*
stonehenge.py*
text3D.py*
texttest.py*
texture_and_lighting.py*
texturetest.py*
tictac.py*
tictacdat.py*
toroid.py*
toroid_drag.py*
wave.py*
widgets.py*