Tag: "physics"

Fallacies of computer topics: A physicist's point of view II

December 6th, 2016
Fallacies of computer topics: A physicist's point of view II
Another misunderstanding is as for the programming language, Fortran. This is one of the very old languages developed for numerical calculation of physics and mathematics, but still exists. Fortran is a language specialized only for calculation, so it… more »

What we see from students’ evaluating their professor's class

November 27th, 2016
What we see from students’ evaluating their professor's class
In the United States, while a professor grades his/her students, the students evaluates their professor. It also helps the professor improve the class management for the future classes.   I read the evaluation written by the student after the semester.… more »

Another explanation of what physics is with a little different perspective

November 22nd, 2016
Another explanation of what physics is with a little different perspective
Speaking of physics, people say, “It’s too hard to learn.”; “I don’t understand anything."; or "This is the theory that forms the basis of all technologies." They are right, but it does not seem that most people grasp what physics really is.  A long… more »

Does "centrifugal force" exist?

October 18th, 2016
Does "centrifugal force" exist?
There are two kinds of force, which are the real force and the fictitious force. In fact, the centrifugal force is NOT a real force, but a fictitious force. Now you want to say, "When you drive a car during a curve, you actually feel a force outward… more »

Can the sum of interior angles of a triangle be more than or less than 180 degrees?

September 19th, 2016
Can the sum of interior angles of a triangle be more than or less than 180 degrees?
What is the sum of the interior angles of a triangle? Most of people would answer 180 degrees, but physicists and mathematicians want to point out something with the question and answer.  Normally, if you draw a triangle on a paper, then the sum of… more »