This app turns the iPod or iPhone into a simple stroboscope. It produces a flash of duration 30ms with a controllable period between flashes. To optim …
This application presents three different color dots. Hold the device vertically and move it right and left or hold it horizontally and move it up and …
This application makes use of the linearly polarized light coming from the screen to demonstrate the transient visual phenomenon called Haidinger's Br …
The screen presents a pattern of black and white or red and green radial lines. If moved around in a swirling motion - like panning for gold - another …
This app is designed for the display of the spectrum of light that can be emitted by the iPod or iPhone screen. To use it, select a color from the dia …