hexiamond
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Pentomino — A pentomino is a polyomino composed of five (Greek πέντε / pente ) congruent squares, connected orthogonally.There are twelve different pentominoes, often named after the letters of the Latin alphabet that they resemble. Ordinarily, the… … Wikipedia
Self-replication — is any process by which a thing might make a copy of itself. Biological cells, given suitable environments, reproduce by cell division. During cell division, DNA is replicated and can be transmitted to offspring during reproduction. Biological… … Wikipedia
Polyiamond — A polyiamond (also polyamond or simply iamond) is a polyform whose base form is an equilateral triangle. The word polyiamond is a back formation from diamond, because this word is often used to describe the shape of a pair of equilateral… … Wikipedia
Heinz Haber — (May 15, 1913 ndash;February 13, 1990) was a German physicist and science writer who primarily became famous for his TV programs and books about physics and environmental subjects. His lucid style of explaining hard science has frequently been… … Wikipedia
