This one looks very interesting; from October 10th to the 24th this year the USA Science & Engineering Festival will take place in the Washington, D.C. area. Billing itself as the the country’s first national science festival, it already has over 500 organizations signed up to participate, and will end with a two day Expo in the nation’s capital according to their official blog. This event will give science & engineering groups the opportunity to present themselves to the public with hands-on science activities to inspire the next generation of researchers and developers. The teams involved are wide ranging, and include such diverse outfits and events as the 4H National Youth Science Day, the You Can Do The Cube competition, a presentation from Hollywood Movie Physics, and the Versatile Mr. Freeze from FermiLabs, to name but a few. And yes, you can follow them on a boatload of social media tools, including Twitter.