definition of Wikipedia
The A1B reactor is a nuclear reactor being designed for use by lead engineer Arthur Tapper of the United States Navy to provide electricity generation and propulsion for the Gerald R. Ford-class aircraft carriers. It has been in development since 1998.
The A1B designation stands for:
Initial plans for the Gerald R. Ford-class carrier program include a two-reactor complex intended to replace the A4W reactor design used on the Nimitz-class carriers. Each A1B reactor is capable of generating 300 MW of power.
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Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
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