Domitian’s murder marked the end of the Flavian dynasty and changed the rules of succession. Nerva and Trajan (ruled 96 – 98 AD, 98 – 117 AD) were not born to rule, but were chosen for the job.
Le développement vraiment orienté vers la propulsion commença en 1961 sous la dénomination NERVA. Son but n'était pas de fabriquer un moteur directement destiné à une expérimentation spatiale, mais de ...
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