# Alan H. Andrews

 Newton’s 3rd law of motion: When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.

Alan H. Andrews didn’t invent median line study, but his name is strongly associated with this technical indicator since since he help popularize it in his mail-order trading course “Action-Reaction Course” in the 1960s and 1970s. This course laid the foundation to many of the charting techniques that are used by successful day traders today.

In his course, Andrews claimed that Newton’s laws of physics could be applied to price fluctuations.

“What are some of the important profit making principles that you are now about to learn to use. One is the application to price fluctuations of Newton’s law of physics to which the late Roger Babson attributed his fortune of over \$50,000,000. The Action and Reaction Rule that states that these are equal and opposite. Another is how drawing a single line will enable you to know where the price of any stock or any future is now headed and the probable time it will reach there.” ¦

• Excerpt from the Action-Reaction Course

The name of the course is a reference to Newton’s 3rd law of motion, popularly nicknamed the action-reaction law.

The Action-Reaction Course was quite popular among aspiring traders back in the day, but we actually know very little of the man behind it. His father was an investment advisor in the United States, but Alan H. Andrews didn’t immediately follow in his father’s footsteps. Instead, the young Alan H. Andrews went to Harvard, and then moved to Cambridge where he obtained an engineering degree from the Massachusetts Institute of Technology (MIT) and subsequently worked as a teacher of thermodynamics.

Several unsubstantiated sources claim that Alan H. Andrews married and had children, but fail to list any information about his wife or when the children were born. There are also some rather fuzzy stories about Andrews going to work for his father and using mathematics to make 1 million dollars in four years.

What we do know is that towards the end of his teaching career, Andrews was a lecturer at the University of Miami, Florida. It wasn’t until he retired from that position that he decided to start teaching others about trading. Andrew launched a newsletter focused on trading, trading methods and technical analysis. Interested traders would pay for a subscription and have the newsletter sent to them by mail.

Eventually, Andrews put together and started selling the 60-page trading course named The Action-Reaction Course. It focused on action and reaction techniques, including median line method, and cost \$1,500.

Alan H. Andrews died in 1985.