who attempted the activities. Notable past exhibits In the 1950s, a small Wilson cloud chamber was featured in the main entrance hall. Visitors could come within inches of radioactive material to watch the vapor trails of the particles they emitted. The first Fresnel lens using electricity in the US (removed from the Navesink lighthouse), was on display from the early 1950s until 1979. In 1988, the museum was host to an exhibit focusing on the life and times of Ramses II. The exhibit displayed more than 70 artifacts, on loan from the Egyptian Museum in Cairo. Arguably, the centerpiece of the exhibit was a 40-foot-tall model of an Egyptian temple which housed a 3,000-year-old, 57-ton granite statue of Ramses. The exhibit ran from May 7, 1988 through August 30, 1988. From August to October 2004, the museum was host to the US premiere of The Lord of the Rings the Motion Picture Trilogy the Exhibition, developed by the Te Papa museum in New Zealand, and containing many of the costumes and props from the films. The Museum of Science built and designed its own film-based exhibit, entitled Star Wars: Where Science Meets Imagination. It was on display there from October 2005 to April 2006, and traveled to other venues. Gunther von Hagens' Body Worlds 2: The Anatomical Exhibition of Real Human Bodies was at the Museum of Science from July 29, 2006 to January 7, 2007. From October 25, 2009 to February 21, 2010, Harry Potter: The Exhibition was at the museum. The Science Behind Pixar is a exhibition currently on tour around the US. It was created by the Museum of Science, Boston, in collaboration with Pixar Animation Studios. This exhibit featured some of the activities, videos, and images that describe the math, computer science, and science that go into making computer animated films. Computing exhibits Although the history artifacts of The Computer Museum (TCM) were moved from Boston to Silicon Valley to become the core of the current Computer History Museum, some former TCM educational exhibits and objects were transferred to the Boston Museum of Science where two new computing and technology exhibits were created. The Computing Revolution, an exhibit no longer on display at the Museum of Science, related the history of computing through a variety of hands-on interactive exhibits. Cahners ComputerPlace, previously located in the Blue Wing, Level 1, housed displays ranging from educational video games