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http://www.lie2me.net/thepolygraphmuseum/id16.html

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Q: What method did john larson use to develop the polygraph?
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What John Augustus Larson invented?

John Augustus Larson invented a POLYGRAPH which measures and records several physiological indices such as blood pressure, pulse, respiration and skin conductivity.


When was John B. Larson born?

John B. Larson was born on 1948-07-22.


When did John Augustus Larson die?

John Augustus Larson died on 1965-10-01.


Who invented the first polygraph machine?

A machine used by law enforcement to detect when a person lied was first designed created and developed by Dr. John Augustus Larson in 1921. Larson's machine was developed to detect changes in the blood pressure, skin temperature, and breathing rate of the person being tested. This device was first used by the Berkeley Police Department.Larson's invention was later improved and perfected by his "apprentice", Leonarde Keeler. Keeler would go on to change to an ink recording system, create something less bulky and cumbersome, and an indicator to show when the question was asked. Keeler began his improvements in the early 1920's and continued them for quite some time.I believe John Larson invented it in 1921.James witword


Who is smiling bob on the enzyte commercial?

According to answerbag.com his name is John Larson Note: It is not John Larson. I personally know the actor who plays Smiling Bob. The John Larson story is an internet myth.


Who is johnathon larson?

John Larson wrote the music for "Rent" a musical on Broadway.


Who invented the galvanograph?

John Augustus Larson


What has the author John Lauritz Larson written?

John Lauritz Larson has written: 'Bonds of enterprise' -- subject(s): Railroads, Biography, Businesspeople, History


When was john a larson born and when did he die?

1892 - 1965


How did John A Larson die?

he died of an aortic aneurysm


Who invented the lie detector in 1921?

John A. Larson, who was a medical student in California.


Where does the name larson come from it means your gay?

No, it has nothing to do with homosexuality. It's a Scandinavian tradition to name a boy after his father: Larson = Son of Lars, Johnson - Son of John, etc.