It's fairly easy to multiply two numbers that are close to the same multiple of 10.
Ever since I was a little girl, I have periodically played a game I like to call ‘What would happen if…'
A 4-state two-dimensional invented in the 1980s. The ant starts out on a grid containing black and white cells, and then follows the following set of rules.
A book titled "Biocentrism: How Life and Consciousness Are the Keys to Understanding the Nature of the Universe" has stirred up the Internet, because it contained a notion that life does not end when the body dies, and it can last forever. The author...
The Internet's visual storytelling community. Explore, share, and discuss the best visual stories the Internet has to offer.
This is a list of some of the major . Some of these problems are , meaning that existing theories seem incapable of explaining a certain observed or experimental result. The others are , meaning that there is a difficulty in creating an experiment t...
Draw a stickman and watch him come to life!
There are several ways to calculate the square root of a number by hand. While some methods will only give you an approximation, this method calculates the square root digit by digit using only simple operations.
The length of the polygonal spiral is found by noting that the ratio of to of a of sides is
This is just some rambling by a computer programmer about DNA. I'm not a molecular geneticist. If you spot the inevitable mistakes, please mail me () at .
An idler's miscellany of compendious amusements
6 Books Every Programmer Should Own