A question I am often asked is what chart is best for me to use? First, think about what it is you want to show. Is it a relationship between two variables, a distribution, a comparison? The answer to this question will lead you to the right suite of charts that might be appropriate. Andrew […]

Today is the third and final part of my series of selected images from a massive late 19th century tome entitled simply Magic, subtitled Stage Illusions and Scientific Diversions, including Trick Photography, compiled and edited by Albert A. Hopkins. The book takes a thorough tour through the popular magic tricks and illusions of the day, […]

Today is Part 2 of selected images from a massive late 19th century tome entitled simply Magic, subtitled Stage Illusions and Scientific Diversions, including Trick Photography, compiled and edited by Albert A. Hopkins. The book takes a thorough tour through the popular magic tricks and illusions of the day, including along the way many delightfully […]

I become interested in magic in the 5th grade of elementary school. Through Scholastic Books Services, I purchased The Great Houdini by Beryl Williams & Samuel Epstein for fifty cents. When I got home from school, I started reading the book and stayed up all night reading it until it was finished. Over the years, […]

Is this circular logic or recursive?

Election authorities proclaimed Hugo Chavez’s handpicked successor Venezuela’s president-elect last Monday, despite his challenger’s demand for a recount. “It was a result that was truly fair, constitutional and popular,” Nicolas Maduro Moros said, criticizing his opponent’s refusal to concede. Maduro Moros secured 50.8% of votes in Sunday’s election, while opposition candidate Henrique Capriles Radonski won 49.0%, […]

(Above) An NFPA 704 sign out in the wild. According to the  sign, whatever is behind that door is very, very dangerous and cannot be exposed  to water. (image: Flickr user johnwilliamsphd) Cities are full of signs. Signs telling us where to go and how to get there;  signs suggesting things to buy and signs […]