The character is Gordon Freeman, the protagonist for the game series Half Life which is the game Valve is best known for.
The Lambda here represents the radioactive decay constant and is used as part of the measure for the "half life" of any radioactive material.
The Gordon character is a scientist, much of the game is set in a science lab and Valve are known for making games with many scientific references (see also: Portal).
The Lambda here represents the radioactive decay constant and is used as part of the measure for the "half life" of any radioactive material.
The Gordon character is a scientist, much of the game is set in a science lab and Valve are known for making games with many scientific references (see also: Portal).