How do tornadoes form

How do tornadoes form: "Tornadoes are nature’s most violent storms; having destructive winds in excess of 250 mph they can destroy anything in their path. Tornadoes are fascinating to watch and will almost mesmerize you like watching a fire, but they can be extremely dangerous to watch from close range."

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It's Raining Birdies | Professional Disc Golf Association

It's Raining Birdies | Professional Disc Golf Association: "The 4th stop on the National Tour Elite Series came to an end today as the final putts hit the chains at the Hall of Fame Classic in Appling, GA. "

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NeoLucida brings 19th Century sketching tech into the present

NeoLucida brings 19th Century sketching tech into the present: "As long ago as 1807 – and possibly up to 200 years earlier – many artists used an optical device known as a camera lucida to help them in sketching subjects. A controversial theory even suggests that some of the famous Old Masters created their masterpieces not by sketching freehand, but by using such gadgets. Now, two art professors are trying to bring the camera lucida back, in the form of the low-cost portable NeoLucida."

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