Week 63 Forensic Science Geek of the Week is Announced

The Forensic Science Geek of the Week

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The week 63 “www.TheTruthAboutForensicScience.com Forensic Science Geek of the Week” honors goes to: Ginger Mos.

: Ginger Moss

Ginger Moss is our Geek of the Week

This is what our Geek of the Week reports to us:

I am a homeschooling mom of a 7 year old daughter and 10 year old son from Woodstock, Georgia. I teach Forensic Science, Chess, and Essay Writing to elementary and middle school home-educated children as well as to my own. I have a Bachelor’s Degree in Business Administration from Shorter College. I am the leader of a Chess Club and Pokémon league. I am also a Cub Scout Pack Secretary. I am not sure what else you would like me to include in a bio. I think to your audience, it may be pretty boring. Mostly, I am a mom who is finally enjoying science after despising it a traditional school environment. Now, I found great joy in academics and I am sharing my love of science and chess with the next generation!

Congratulations to our Forensic Science Geek of the Week winner!

See the challenge question that our winner correctly answered.

OFFICIAL QUESTION:

Forensic Science Geek of the Week Challenge

1. Who is this fellow?

2. When did he come up with the equation to the right?

3. What is the equation’s name?

4. Explain it.

Our Geek of the Week answered:

JJ van Deemter

1956

Van Deemter Equation

According to Wikipedia: The Van Deemter equation in chromatography relates the variance per unit length of a separation column to the linear mobile phase velocity by considering physical, kinetic, and thermodynamic properties of a separation.[1] These properties include pathways within the column, diffusion (axial and longitudinal), and mass transfer kinetics between stationary and mobile phases. In liquid chromatography, the mobile phase velocity is taken as the exit velocity, that is, the ratio of the flow rate in ml/second to the cross-sectional area of the ‘column-exit flow path.’ For a packed column, the cross-sectional area of the column exit flow path is usually taken as 0.6 times the cross-sectional area of the column. Alternatively, the linear velocity can be taken as the ratio of the column length to the dead time. If the mobile phase is a gas, then the pressure correction must be applied. The variance per unit length of the column is taken as the ratio of the column length to the column efficiency in theoretical plates. The Van Deemter equation is a hyperbolic function that predicts that there is an optimum velocity at which there will be the minimum variance per unit column length and, thence, a maximum efficiency. The Van Deemter equation was the result of the first application of rate theory to the chromatography elution process.

[BLOGGER’S NOTE: What a great answer. That is what this blog is all about. Thank you for participating. Congratulations on being our Geek of the Week.]

The Hall of Fame for the www.TheTruthAboutForensicScience.com Forensic Science Geek of the Week:

Week 1: Chuck Ramsay, Esquire

Week 2: Rick McIndoe, PhD

Week 3: Christine Funk, Esquire

Week 4: Stephen Daniels

Week 5: Stephen Daniels

Week 6: Richard Middlebrook, Esquire

Week 7: Christine Funk, Esquire

Week 8: Ron Moore, B.S., J.D.

Week 9: Ron Moore, B.S., J.D.

Week 10: Kelly Case, Esquire and Michael Dye, Esquire

Week 11: Brian Manchester, Esquire