Introduction to Logarithms

Logarithms are inverses of exponential. Before actually researching into this topic--logarithms, my group and I used to think that logarithms was redundant in our daily lives. However, Logarithms is not as redundant is we thought it was! It is so commonly used in our daily lives! What is the use of Logarithms? The use of Logarithm scales is to reduce wide-ranging quantities to smaller scopes.

Some examples would be:

1) Richter Scale (Used to calculate the magnitude of earthquakes)

2) pH Scale (Used to calculate the acidity level or alkali level of a solution)

3) Decibels (Unit used to quantify sound pressure and voltage ratio)

Some Mathematical Laws make use of Logarithms too. For example, in Psychology:

1) The Hick's Law

2) The Fitt's Law

3) The Weber-Fechner Law

Generally, these 3 laws uses the idea of logarithms to calculate Human Reaction.

Hope you are starting to get interested in Logarithms after reading this!

Unfortunately, we will only be touching on the Ritcher Scale, the laws in Psychology and a little bit on pH scale...

http://en.wikipedia.org/wiki/Logarithms