During the period from 1946 until 1954, the single most important constraint governing the development of peaceful uses of atomic power was the Atomic Energy Act of 1946. This American law – passed after a failed attempt to establish an international control regime for nuclear materials – made it illegal to trade in nuclear knowledge […]
Technical History Stories
Light Water Breeder Reactor: Adapting A Proven System
At 12:30 am, on August 26, 1977, the operators at the Shippingport Atomic Power Station began lifting the central modules of the experimental breeder reactor core into the blanket section. At 04:38 am, the reactor reached criticality. During the next five years, the core produced more than 10 billion kilowatt-hours of thermal power – equivalent […]
U.S. Nuclear Rocket Programs
The Nuclear Engines for Rocket Vehicle Applications (NERVA) program officially began in 1961, when NASA issued a request for proposals and established the Space Nuclear Propulsion Office (SNPO). Various government laboratories had been studying the concept for several years, several contractors were already working on conceptual design, and space was a big topic of interest. […]
In the beginning: A 1942 Experiment Shows the World It Can Be Done
On December 2, 1942, Enrico Fermi and a small band of scientists and engineers demonstrated that a simple construction of graphite bricks and uranium lumps could produce controlled heat. Let’s look back to see how simple that first reactor was. Behind the Scenes The space chosen for the reactor was a squash court under the […]
