Articles about Quadratics, Sound and Cation Exchange Capacity

I have a few more articles published in eHow on a range of topics.  The first is about computing the Cation Exchange Capacity (CEC) for soils.  I have used this number to estimate heavy metal and nutrient uptake for soils in conjunction with on-site sewage disposal systems.  The CEC along with Percent Base Saturation also has use in determining soil fertility and how best to apply nutrients to the soil.

How to Calculate CEC in MEQ/100 GMS

 The next article is about computation of the sound velocity in metals.  Although not used very much in everyday life, this property of solids has found a lot of use in manufacturing, especially quality control of refractory metals and ceramics. OF course, the computation of sound velocity is very important in the study of geology and earthquakes.

How to Calculate Sonic Velocity in Metals 

The final article (for now) has to do with the uses of quadratic functions in the real world.  These functions have broad application to a variety of topics and areas of study. I just chose a few that are not normally discussed in algebra class word problems.

Quadratics in the Real World