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SP-100 nuclear power system. SP-100 (Space reactor Prototype [1]) was a U.S. research program for nuclear fission reactors usable as small fission power systems for spacecraft. [2] It was started in 1983 by NASA, the US Department of Energy and other agencies. [3] A reactor was developed with heat pipes transporting the heat to thermoelectric ...
In the 1992-93 time period, this work was stopped due to the termination of the related SP-100 nuclear power system work and NASA's new emphasis on "better, faster, cheaper" systems and missions. In 2020, a free-piston Stirling power converter reached 15 years of maintenance-free and degradation-free cumulative operation in the Stirling ...
In 1983, NASA and other US government agencies began development of a next-generation space reactor, the SP-100, contracting with General Electric and others. In 1994, the SP-100 program was cancelled, largely for political reasons, with the idea of transitioning to the Russian TOPAZ-II reactor system. Although some TOPAZ-II prototypes were ...
SAFE-30 small experimental reactor. Safe affordable fission engine (SAFE) were NASA's small experimental nuclear fission reactors for electricity production in space. [1] Most known was the SAFE-400 reactor concept intended to produce 400 kW thermal and 100 kW electrical using a Brayton cycle closed-cycle gas turbine. [2]
A nuclear propulsion project, SP-100, was created in February 1983 with the aim of developing a 100 kW nuclear rocket system. The concept incorporated a pebble-bed reactor, a concept developed by James R. Powell at the Brookhaven National Laboratory, which promised higher temperatures and improved performance over NERVA. [116]
The improvement has shown enough persistence that one U.S. productivity model recently began to flip from a near 100% certainty the U.S. was locked in a "low-growth" regime to a likelihood of less ...
On e-commerce platforms like Etsy, TikTok Shop, eBay and Redbubble, sellers are hawking merchandise featuring designs inspired by the fatal shooting of UnitedHealthcare CEO Brian Thompson.
Can we imagine ourselves back on that awful day in the summer of 2010, in the hot firefight that went on for nine hours? Men frenzied with exhaustion and reckless exuberance, eyes and throats burning from dust and smoke, in a battle that erupted after Taliban insurgents castrated a young boy in the village, knowing his family would summon nearby Marines for help and the Marines would come ...