interactive exhibition where visitors can imagine and discover a world they cannot see and learn about big ideas from the small nanoscience world. (This display is now part of Little Albert's Lab.) Energy Encounter — A series of displays focusing on the civilian use of nuclear power, including: history of nuclear reactors and discussion of their engineering principles examination of nuclear power accidents, safety engineering, and waste treatment/storage models of the American Palo Verde Nuclear Generating Station and French Superphénix Fast breeder reactor a model of the NS Savannah, the first nuclear-powered merchant ship nuclear energy as one part of a spectrum of alternative energy-producing methods Radiation 101 — A display of everyday items and activities that expose people to ionizing radiation as well as a free-standing case containing the companion exhibit to the online exhibition: Atomic Advertising Atomic Pop Culture — Visitors may be entertained while viewing how American popular culture reflected the dawning of the Atomic Age. This includes vintage movie memorabilia, comic books, accessories, and more. Nuclear Waste Transportation — The TruPact II container is on display in this exhibit - a type of transportation container used by the US Department of Energy (DOE) to transport transuranic waste. What's Up With U(ranium) — An exhibit that seeks to engage visitors in answering questions like "where does uranium come from," "how does it move through the environment," "how does it affect us," and "is it radioactive?" Uranium; Enriching Your Future — A partially interactive exhibit that explains how nuclear power contributes to the energy industry. Dark Cube: Heisenberg's Race for the Bomb — A special exhibition where visitors can learn about Nazi Germany's futile effort to outpace the Manhattan Project's atomic weapons research featuring a "dense, two-inch charcoal-black cube made of pure uranium metal that Nazi scientists suspended with 663 other similar cubes." Nuclear by Mail — This exhibit displays the development of nuclear science and technology in the 20th century through these developments' appearance on stationery. Temporary Exhibit Hall — An area devoted to different temporary exhibits. Both self-guided and docent-led tours are available. Noteworthy artifacts replicas of Little Boy and Fat Man the only full size replica of the "Gadget" and Trinity Test Tower assorted modern nuclear bombs and warheads a WE.177 bomb (British nuclear weapon deployed from the 1960s until 1998) a Norden bombsight two of the actual B28 bomb casings from the Palomares hydrogen