Given any three tangent circles, there are exactly two other circles that are tangent to the three circles. Starting from three big tangent circles of the same size, use recursion to draw more tangent circles.
To figure out the radius of the tangent circle, you may need to look up Soddy Circles.
Make a fun game that tests how fast you can identify very small color variation. You can use colorsys library to vary hue, saturation, brightness, or any combination of them.
Fibonacci sequence is a series of numbers with each number being the sum of previous two numbers. The first numbers are 1, 1. Here is the first 10 numbers in
You drew a crescent moon in a level 2 project. Based on it, animate the solar eclipse process. Of course, real solar eclipse will look much more amazing.
