radiation shield
51Pool-type reactor — NC State s PULSTAR Reactor is a 1 MW pool type research reactor with 4% enriched, pin type fuel consisting of UO2 pellets in zircaloy cladding …
52X-10 Graphite Reactor — For other uses, see X10 (disambiguation). X 10 Reactor, Oak Ridge National Laboratory U.S. National Register of Historic Places …
53Dry dilution refrigerator — A dry dilution system A dry (or cryogen free) dilution refrigerator is a type of dilution refrigerator that does not require the use of any external cryogens, in particular liquid helium, to operate. In the traditional design of a dilution… …
54Satellite — This article is about artificial satellites. For natural satellites, also known as moons, see Natural satellite. For other uses, see Satellite (disambiguation). An animation depicting the orbits of GPS satellites in medium Earth orbit …
55Jupiter Icy Moons Orbiter — The Jupiter Icy Moons Orbiter (JIMO) was a proposed spacecraft designed to explore the icy moons of Jupiter. The main target was Europa, the suspected ocean of which is one of the places where simple alien life is a possibility in our solar… …
56Relativistic rocket — A relativistic rocket is any spacecraft that is travelling at a velocity close enough to light speed for relativistic effects to become significant. What significant means is a matter of context, but generally speaking a velocity of at least 50%… …
57NERVA — For other uses, see Nerva (disambiguation). Diagram of the NERVA nuclear rocket engine NERVA is an acronym for Nuclear Engine for Rocket Vehicle Application, a joint program of the U.S. Atomic Energy Commission and NASA managed by the Space… …
58Liquid metal cooled reactor — A Liquid metal cooled nuclear reactor, liquid metal fast reactor or LMFR is an advanced type of nuclear reactor where the primary coolant is a liquid metal. Liquid metal cooled reactors were first adapted for nuclear submarine use but have also… …
59Energieschild — Der Energieschild (auch Kraftfeld) ist ein meist in der Science Fiction verwendeter Begriff, der eine Barriere aus Energie bezeichnet, welche zum Beispiel ein Raumschiff vor Strahlenwaffen, kosmischer Strahlung, Weltraumstaub oder Meteoriten… …
60Kraftfeld (Science Fiction) — Der Energieschild (auch Kraftfeld) ist ein meist in der Science Fiction verwendeter Begriff, der eine Barriere aus Energie bezeichnet, welche zum Beispiel ein Raumschiff vor Strahlenwaffen, kosmischer Strahlung, Weltraumstaub oder Meteoriten… …
