The concept is beautifully simple: Just click 10 times, 1 second apart. Can you manage it?
The concept is beautifully simple: just click 10 times, but try to make each click exactly 1 second apart. You get feedback in the form of the background color and the number of milliseconds you were out. But it's often easier to just close your eyes and visualize the time in your mind and click for it.
At the end it tells you how accurate you were.
A great idea and strangely fun :)