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A block style lambda is used as a recurring symbol in the Valve computer game series Half-Life, [9] referring to the Lambda Complex of the fictional Black Mesa Research Facility, as well as making appearances in the sequel Half-Life 2, and its subsequent prequel Half-Life: Alyx as an in-universe symbol of resistance. [10]
Half-life (symbol t ½) is the time required for a quantity (of substance) to reduce to half of its initial value.The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo radioactive decay or how long stable atoms survive.
The Lambda logo (λ) is a symbol found frequently in the Half-Life universe. It represents the Greek letter "Λ" (lowercase "λ"), and is a radioactive decay constant used in the half-life equation. "Λ" is the 11th letter in the Greek alphabet.
the half-life is related to the decay constant as follows: set N = N 0 /2 and t = T 1/2 to obtain t 1 / 2 = ln 2 λ = τ ln 2. {\displaystyle t_{1/2}={\frac {\ln 2}{\lambda }}=\tau \ln 2.} This relationship between the half-life and the decay constant shows that highly radioactive substances are quickly spent, while those that radiate ...
The half-life can be written in terms of the decay constant, or the mean lifetime, as: t 1 / 2 = ln ( 2 ) λ = τ ln ( 2 ) . {\displaystyle t_{1/2}={\frac {\ln(2)}{\lambda }}=\tau \ln(2).} When this expression is inserted for τ {\displaystyle \tau } in the exponential equation above, and ln 2 is absorbed into the base, this equation ...
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Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.