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  2. Cathode-ray tube - Wikipedia

    en.wikipedia.org/wiki/Cathode-ray_tube

    The electron beam is steered by varying the voltage difference across plates in a pair; For example, applying a voltage to the upper plate of the vertical deflection pair, while keeping the voltage in the bottom plate at 0 volts, will cause the electron beam to be deflected towards the upper part of the screen; increasing the voltage in the ...

  3. Space Launch System core stage - Wikipedia

    en.wikipedia.org/wiki/Space_Launch_System_core_stage

    The core stage comprises five major sections: the engine section, the liquid hydrogen (LH 2) tank, the intertank, the liquid oxygen (LO x) tank, and the forward skirt.These elements can be further divided into ten barrel sections, four domes, and seven rings, together forming the structure of the rocket stage.

  4. Three-strikes law - Wikipedia

    en.wikipedia.org/wiki/Three-strikes_law

    The exact application of the three-strikes laws varies considerably from state to state, but the laws call for life sentences for at least 25 years on their third strike. In the state of Maryland, any person who receives their fourth strike for any crime of violence will automatically be sentenced to life imprisonment without parole.