Posts Tagged ‘Engineering’

Another Post on Psychology as a STEM Discipline

September 1, 2016

HM likes to address this topic at the beginning of the school year.  Psychology is officially a STEM discipline.  STEM stand for Science, Technology, Engineering, and Mathematics and these are the disciplines highly prized for our economy.  Many are probably surprised that psychology is a STEM discipline because they think of psychology in a clinical sense and often confuse these psychologists with psychiatrists.

Well there is a scientific version psychology, parts of which are frequently termed neuropsychology because of the neurological structures and brain imaging techniques that are used.  For the student interested in science psychology is recommended because it crosses many levels of science.  Some psychologists image the brain and make recordings and measurements of the brain.  Cognitive psychologists study perception, memory, decision making, problem solving, and creativity.  Social psychologists study how groups of people interact.  Organizational psychologists study how organizations work and prosper.  Each of these sub-disciplines of psychology has special methodologies for dealing with these problems.  There are also mathematical psychologists and engineering psychologists.  HM had the privilege of serving as President of Division 21 of the American Psychological Association (APA) which is the Division for Engineering and Applied Experimental Psychology.

Although there are marketing psychologists, if you are interested in marketing it might be better to study marketing in a Business College.  If you are interested in how others think and feel, you might be better advised to study literature or drama in college.  Literature is known for fostering empathic understanding, which might be more of what you are interested.  Although HM has not seen any literature on The benefits of studying drama, he has a hunch that the study of and participation in drama might have similar benefits.  However, if you are interested in the scientific study of humans, then psychology would be a good choice.

© Douglas Griffith and, 2016. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Douglas Griffith and with appropriate and specific direction to the original content.


Domains of Knowledge

May 20, 2016

Healthymemory has used this phrase in at least one prior blog post and feels it incumbent upon him to elaborate.  Healthyemory has argued that it is science or rather the scientific method that is responsible for the rapid advancement of the species.  However, Healthymemory has also argued that there are other domains of knowledge and that to be stuck in one level of knowledge is to be an intellectual runt.

Perhaps this can best be illustrated by healthymemory’s  academic discipline, psychology.  This is scientific psychology as opposed to clinical or counseling psychology, although those disciplines can and do make use of the scientific method.  Psychological science is practiced in a wide variety of areas.  Let us start at the bottom and work our way up.  At the most molecular level are psychologists who do studies with animals, then take biological assays of the brains to see how the brains changed as the result of learning.  Then there are studies in which electrodes are placed in the brains of animals and research is done to determine which structures accomplish what.  Human brains are studied using EEGs and a variety of brain imaging techniques to examine how the brain functions.  As a result many cognitive psychology programs are renaming themselves as cognitive neuroscience programs.  Then there are studies of human learning, memory, language processing, concept formation, problem solving and so forth.  At the group  level studies are done regarding the interactions among individuals and team performance.  There are also industrial and organizational programs, which study psychological processes in business and industry.  Moreover this listing is not exhaustive.

Each of these areas use scientific methods, but the scientific method needs to be applied differently depending upon the specific area of investigation.  Studying these different areas provides a wide understanding of the scientific method.  Healthy memory’s personal experience working with many scientists and engineers, is that they understand how to do good science in their specific areas, but that this knowledge often does not transfer to other areas of investigation.  This is why healthy memory argues  that scientific psychology is a good major if the goal is to develop a thorough knowledge of the scientific method.

However, Healthymemory argues that if you want to understand people, then literature would be a better method.  Literature increases empathy, the ability to think and feel as others think and feel.  As everyone is different it is best to read literature dealing with as many different people as possible.  This constitutes an important domain of knowledge that is important for interacting with our fellow human beings.

Theater is a related discipline that develops the same strengths.  This is particularly true if one actually gets into acting where the requirement is to be, to think and act like a specific individual.

Then there is music, which involves the sense of hearing.  And music provides enjoyment and access to a wide range of emotional feelings.
Then there is dancing and learning to express oneself through movements of the body.

And there are athletics each with its own domain of athletic skills.

This list could go on and on, and we could discuss and argue as to what activities, areas of knowledge should qualify as domains of knowledge.

Perhaps the simplest cut is between science and the humanities.  Much has been discussed and argued about these two cultures.  The important point is that they exist and they both need to be appreciated. Another domain, which needs to be included, is the spiritual domain.  Religions and beliefs are present in all cultures, and they provide another needed domain of knowledge.

© Douglas Griffith and, 2015. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Douglas Griffith and with appropriate and specific direction to the original content.

The Greatest Genius to Have Walked on Earth

June 29, 2014

In my mind that genius is unquestionably Leonardo da Vinci. I can think of no ne else who was so creative and his genius was manifest in art, science and engineering. So when I ran across a book titled How to Think Like Leonardo Da Vinci in the National Gallery of Art, I had to purchase it. The book is by a Da Vinci scholar, Michael J. Gelb. Self Help books were unknown in Da Vinci’s time, so Gelb took the task upon himself, and he did a splendid job.

There is no way I can do justice to Da Vinci’s contribution in this post, so what I am offering is only a sample. In the realm of art his Mona Lisa and The Last Supper are recognized as two of the greatest paintings ever produced. Other famous painting include The Virgin of the Rocks, The Madonna and Child with St. Anne, The Adoration of the Magi, and St. John the Baptist. His portrait of Ginevra de’ Benci hangs in the National Gallery in Washington, D.C.

As an inventor he made plans for a flying machine, a helicopter, a parachute, an extendable ladder (still used today by fire departments), a machine for cutting threads on screws, the bicycle, an adjustable monkey wrench, a snorkel, the three-speed gear shift, . hydraulic jacks, the world’s first revolving stage, locks for a canal system, a horizontal waterwheel, folding furniture, an olive press, a number of automated musical instruments (Leonardo himself was a musician), a water-powered alarm clock, a therapeutic armchair, and a crane for clearing ditches.

Da Vinci pioneered the concept of automation. He designed many machines to save labor and increase productivity. His automated looms were portents for the Industrial Revolution.

Da Vinci was way ahead of his time as a military engineer. He made plans for the armored tank, machine guns, mortars, guided missiles, and submarines. As far as it is known, nothing he designed was ever used to injure anyone during his lifetime. He was a man of peace who found bloodshed “infinitely atrocious.” He wrote that he designed his instruments of war “to preserve the chief gift of nature, which is liberty.”

Next come his accomplishments as a scientist.


  • He pioneered the discipline of modern comparative anatomy.

  • He was the first to draw parts of the body in cross section.

  • He drew the most detailed and comprehensive representations of humans and horses.

  • He conducted unprecedented scientific studies of the child in the womb.

  • He was the first to make casts of the brain and the ventricles of the heart.


  • He pioneered modern botanical science.

  • He described geotropism (the gravitational attraction of the earth on some plants) ane heliotropism (the attraction of plants toward the sun).

  • He noted that the age of a tree corresponds to the number of rings in its cross section

  • He was the first to describe the system of leaf arrangements in plants.

Geology and Physics

  • He made significant discoveries about the nature of fossilization, and he was the first to document the phenomenon of soil erosion

  • His physics studies anticipated the modern disciplines of hydrostatics, optics, and mechanics.

The book is subtitled Seven Steps to Genius Every Day. However, How to Think Like Leonardo Da Vinci is an enjoyable and highly readable biography of, in my view, the greatest genius to have walked on earth

The STEM Disciplines

August 26, 2012

STEM stands for Science, Technology, Engineering, and Math. And why are they important? They are regarded by many as being important to the economy and to our country. It is much easier to justify funding for these disciplines than for non STEM disciplines.

Here is where the fun begins. It is generally clear what is included in engineering and technology. But what constitutes science? Many people think that scientists wear lab coats and work in laboratories. They think of physics and chemistry first, then perhaps molecular biology and zoology. But what about the social sciences?

First of all, it needs to be understood that science does not refer to any particular discipline. Rather, science refers to a type of thought, a discipline we impose on our thinking. Moreover, all scientific thinking is constrained by empiricism, by collecting facts that can confirm or refute theories. Now there are two general methods of conducting science. One involves systematic observations of nature. Examples are astronomy and natural history. Astronomy involves observations, often with very sophisticated instruments of the universe. Natural history involves the systematic observation of nature. Both support the development of theories and both rely upon empirical observations to support these theories.

The other involves conducting systematically designed experiments to quantify the effects of variables. Experiments are common in chemistry and physics. Some of the experiments in physics are quite expensive. These experiments support or refute theories.

There are shortcomings with naturalistic observations because the scientist cannot systematically control the variables of interest and these variables are often confounded so it is difficult trying to determine what variable affects what, and how the variables interact (affect each other). Addressing these issues requires statistics and experimental design. A knowledge of statistics and experimental design is essential to science.

Although I am biased, I think psychology provides one of the best means of understanding science because it is applied at so many levels. It is applied at the level of the single neuron where recordings are taken. It is applied at the level of individual behavior. It is applied at the level of human cognition. And it is applied at the level of groups of people. Each of these areas develops its own methods, but they are all based on the fundamentals of the scientific method. And they all require a knowledge of statistics and experimental design.

In my professional life I have been surprised about the lack of knowledge in the areas of statistics and experimental design by some professionals in the non-controversial STEM areas, namely technology, engineering, and math. I was surprised by this when I saw the efforts of some engineers and mathematicians trying to design an experiment. They were pathetic. Essentially they were familiar with the limited parts of statistics and experimental design that were used in their disciplines, but could not generalize beyond them. Unfortunately, most people think that people with strong mathematical backgrounds are knowledgeable in statistics and experimental design. Although their backgrounds should facilitate their acquisition of statistical and design skills, the knowledge must be acquired. I have seem engineers running simulations that would have profited immensely by a good experimental design. What is worse is that, generally speaking, they are unaware of and will not acknowledge their shortcomings. I have lost track of the large number of projects that could have benefited from my assistance, but was not requested because they saw no need for it.

There is a general problem regarding the employment of Ph.Ds. Funding is provided for their education, but largely disappears when they are pursuing their careers. So they end up being a migratory work force pursuing post docs or pursue careers remotely related to their training.

Personally speaking, I have had a good life and have remained gainfully employed. But I have fallen way short of what I know I could have accomplished had I been in the right situation with adequate resources. And I believe that our country would be much better off without this underemployment of Ph.Ds. Some might argue that there too many PhDs. I argue that there is insufficient funding from government and industry.

But there is a much larger problem. And that has to do with the rejections of the findings of science and to the reluctance to use science to solve problems. There are internal political forces of ignorance and darkness. I believe that these forces present a larger danger to the United States than terrorists or hostile countries.

© Douglas Griffith and, 2012. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Douglas Griffith and with appropriate and specific direction to the original content.