MindYourDecisions] presents a Babylonian tablet dating back to around 1800 BC that shows that the hypotenuse of a unit square is the square root of two or 1.41421. How did they know that? We ...
Need just printing, or have to scan and copy, too? Seeking low-cost ink, or a low-cost printer? Here's how to choose the right printer for home or work, backed by our top lab-tested picks.
E Ink screens, paper tablets, digital notebooks? The best E Ink Tablets might be the future of reading and writing. Sarah Lord covers TVs and home entertainment. Prior to joining CNET, Sarah ...