It always bugged me that the orbits of the planets about the sun were elliptical, but when discussing the two-body problem, the orbits were circular about the center of mass. My physics teachers sloughed off my question, but it stuck in my memory as a minor mystery. Now that I’m retired I decided to look…

# Category: Science & Math

### Science & Math

## MATLAB Excursion

### Science & Math

## Three-Tier Architecture

### Science & Math

## Staircase of Science

### Science & Math

## Python and WebCam

### Science & Math

## Calculating with Numbers

The pleasure of calculation first came to me in the second grade. Sister Madonna had just taught the class multiplication with the number 2. That night before dinner and then after dinner, I was thick in a calculation frenzy. Starting with 1 times 2, then 2 times the result, then 2 times the result, and…

### Science & Math

## Sun in the Winter Sky

### Science & Math

## Agents of Human Evolution

### Science & Math

## Rate of Evolution, Rate of Mutation

I always thought the rate of evolution was equal to the rate of mutation, but that’s not right.