Right button drag or Ctrl-drag to rotate "camera" to view scene.
To zoom, drag with middle button or Alt/Option depressed, or use scroll wheel.
On a two-button mouse, middle is left + right.
Touch screen: pinch/extend to zoom, swipe or two-finger rotate.
Atomic solid: ball-and-spring model of a solid
Binary star: two stars orbit each other
Bounce: a ball bounces in a 3D box
Local moving lights: local lights moving around the scene
Buttons, sliders, and menus: widgets controlling a scene
RGB-HSV colors: RGB <-> HSV color conversions
Dipole electric field: the electric field of a dipole (+ and - charges)
Double pendulum: a double pendulum shows chaotic motion
Live graphs: incremental graphing; mouse over the graph with crosshairs
Gyroscope: a gyroscope precessing and nutting on a pedestal
Gyroscope-suspended: a gyroscope suspended from a spring
Hard-sphere gas: a gas of colliding hard spheres, with graph of speed distribution
Lorenz function: the Lorenz function
Mouse dragging: drag objects with the mouse
Mouse picking: click on an object to change its color; see technical details
Rotating boxes: 1000 rotating boxes
Rug: a wave moves along a Navajo rug
Stars: 20 stars interacting with each other gravitationally
Surreal Stonehenge: fly through a surreal scene
Textures: textures currently supported by Jupyter VPython
Transparency: true pixel-level transparency; see technical details
VPython objects: examples of most of the VPython objects
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