Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

The original list of 213 things Skippy is not allowed to do in the US army.

A comprehensive guide answering most frequent questions about growing your own vegetables indoors and without soil.

A password generator inspired by XKCD 936 "Password Strength".

A guide to help you choose which glue to use depending on which materials you are trying to bond. Check out the Trivia page!

Download, share, and reuse millions of images and data from across the Smithsonian’s 19 museums, nine research centers, libraries, archives, and the National Zoo.

A fun way to learn about CSS selectors.

Over 1000 Public Domain assets for Physically-based computer rendering.

They're taking the Hobbits to Isengard-gard-g-g-gard!

Ubiquitous on the early web. The often-isometric aesthetic of lush, elaborate pixel art and similar motifs in web design and illustration.

The world's largest free digital repository of all things concerning slide rules and other math artifacts.

SIGBOVIK (Special Interest Group on Harry Q. Bovik) is a yearly conference celebrating the inestimable research work of Harry Bovik, held by The Association for Computational Heresy.

Not being able to send an email farther than a 500-mile radius sounds like an impossible problem... until it isn't.

A collection of varied small pixel fonts from dsg4.com.

A comprehensive breakdown of how mechanical watches work, illustrated with interactive animations.