I came up with this when I was studying color in art college. We had been talking about the effects of contrast when, of course, red and green came up. Everyone has seen the eyeball-straining psychedelic flickering that occurs along the line where the two colors meet. I figured that perhaps one of the reasons for the… » 7/23/14 11:21am Yesterday 11:21am

You are right, and it was surely to give Eratosthenes a tip of the hat that Picard gave his book the title he did. However, Eratosthenes' estimate of the earth's circumference was was off by about 16%. But this was the result of bad data, not the method he used. When better numbers are plugged in, Eratosthenes' method… » 7/22/14 3:39am Tuesday 3:39am

As someone who has enjoyed, and even written, Sherlockian stories it might seem a little hypocritical of me to criticize the premise of the article, but Arthur Conan Doyle has been dead for a long time and there's little chance of his writing anything new. This certainly isn't the case with J.K. Rowling. » 7/19/14 8:21am Saturday 8:21am

The Confederacy Almost Had a Helicopter During the Civil War

The American Civil War was probably the first truly modern war in that technology was so important. The military use of balloons, the development of steam-powered ironclads and monitors (as well as the invention of the gun turret), rifled cannons of unprecedented size, submarines, guncotton and telegraphy were all… » 7/12/14 9:30am 7/12/14 9:30am

I knew Fred for nearly 40 years. The last time I saw him was just a few weeks ago when was an overnight guest in my home. We had a wonderful time...without a clue that he was so ill. This was largely due to the fact that he was one of the last Real Gentleman. » 7/01/14 6:00pm 7/01/14 6:00pm