Beer's Law relates the absorbance of a substance at a given wavelength of light to its concentration in solution. Beer's Law is defined by the following relation:

A=εb[C]

where A is the absorbance of the test solution, b is the path length of the sample, and [C] is the concentration of the light-absorbing material in the sample. ε is the molar absorbtivity, typically specified in units of (L/(mol•cm)). Using this relation, and knowing the molar absorbtivity of a substance at a given wavelength, the concentration of the substance in an unknown can be accurately determined.

Freshmen in chemistry have less trouble remembering the name of Beer's Law than they do Boyle's Law, the Heisenberg Uncertainty Principle, or the DeBroglie equation.

Beer's Law states:

The amount of beer consumed is directly proportional to:

As the amount of beer consumed increases, inhibitions decrease, Motor coordination decreases, and mood increases. This pattern continues up until a certain point (different in each circumstance), at which it changes drastically.

After this point, motor coordination increases slightly, then drops sharply to zero. Mood drops to near zero as well, while inhibitions are eliminated from the equation. Observe the following example:

John consumes x beers. During consumption, John's mood distinctly improves, while his motor coordination and inhibitions decrease. John becomes, what statistical analysts refer to as "goofy", and he's generally having a good time.

John passes "the point", and his mood sharply decreases. His motor coordination increases slightly, enabling him to reach the toilet. (In some cases, motor coordination drops to zero early, causing what statistical analysts refer to as "a soiled rug.") John then loses his mood and motor coordination, and inhibitions are eliminated at the same point he loses consciousness, causing these variables to drop sharply.



         |
     30  |
         |            ____.- "The Point"
     25  |           /    \
  M      |       ___/      \
  O  20  |      /           \
  O      |  /`-'             \
  D  15  |-'                  \
         |                     \
     10  |                      \
         |                       \
      5  |                        \
         ------------------------------
             5   10   15   20   25   30

                    Time Index

  I      |
  N  30  |
  H      |`---.__            
  I  25  |       `--.      
  B      |           \___
  I  20  |               `--.- "The Point"
  T      |                   \
  I  15  |                    \
  O      |                     \
  N  10  |                      \
  S      |                       \
      5  |                        \
         ------------------------------
             5   10   15   20   25   30

                    Time Index

  C      |`.
  O  30  |  `--.
  O      |      \_        
  R  25  |        \__    "The Point" 
  D      |           \___ \  /\
  I  20  |               `--'  \
  N      |                      \
  A  15  |                       \
  T      |                        \
  I  10  |                         \
  O      |                          \
  N   5  |                           \
         ------------------------------
             5   10   15   20   25   30

                    Time Index

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