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May 10, 2018 What is the Future of the Nelson-Farrar Cost Indexes?

The Nelson-Farrar Cost Indexes The Nelson-Farrar Cost Indexes were started by Dr. W. L. Nelson and Dr. Gerald L. Farrar. The indexes were calculated and published in every issue each month by the Oil & Gas Journal and with quarterly summaries in the January, April, July, and October issues. The indexes were originally named the Nelson […]

April 1, 2018 The Chemistry of Slime

Introduction Originally, Slime was a toy product manufactured by Mattel, sold in a plastic trash can and introduced in February 1976. It consisted of a non-toxic viscous, squishy and oozy green or other color material made primarily from guar gum. Today, children everywhere have discovered how to make their own slime by using Elmer’s glue.  So what exactly is in […]

January 12, 2018 Dust Flammability – Part 2 of 3 in a Series on Explosions

Dust Flammability In this second part in our Series on Explosions and Flammability we will discuss Dust Flammability. The dust pentagon below shows that there are five (5) elements necessary for a dust deflagration  to occur. Dust Flammability Pentagon Combustible dust Oxidant Ignition source Dispersion of dust Confinement of dust Although confinement is considered to […]


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