Hopefully you have been attending the USA Science and Engineering Festival since it opened on the 10th, either on the national mall and surrounding area or at any of the Satellite Events taking place at 50 locations in twenty different states. It goes on through the 24th, and I wanted to remind everyone that for the final weekend they are doing a Grand Finale Expo. That runs from 10AM to 5:30PM on Saturday and Sunday, the 23rd and 24th, with more than 1,500 hands-on activities and over 75 stage shows. Hope to see you there!