Iranian Payman Sarhadi presents his "super smart boots" at the 39th International Exhibition of Inventions, New Techniques and Products, in Geneva, Switzerland, Wednesday, April 6, 2011. Equipped with sensors, it collects data on air temperature, humidity and the wearer's blood pressure, and then sends them to base camp. 765 exhibitors from 45 countries are presenting around 1000 products at the 39th International Exhibition of Inventions, which runs from April 6-10. (AP Photo/Keystone, Salvatore Di Nolfi)