Marshall David Brainis an American author, public speaker, and entrepreneur. A college instructor and computer programmer, Brain is the founder of HowStuffWorks. He is the author of the How Stuff Works book series. He has appeared on The Oprah Winfrey Show, Dr. Oz, Good Morning America, CNN, Modern Marvels, and in many other media outlets. He was the host of the National Geographic Channel’s Factory Floor with Marshall Brain 2008-2009...
(wikipedia)