Category: Science & Math

Elliptical Orbits and Center of Mass

Earth elliptical orbit as measured from the sun's center

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…

MATLAB Excursion

MATLAB Excursion into Neural Networks

My MATLAB excursion, followed a break with a week in the White Mountains and another week at Old Orchard Beach. I found it hard to get directly back to editing my Mental Construction (MC) web site.       Hardware Search To ease back into thinking about neural network processing in the brain, I searched…

Calculating with Numbers

Colorful Integers

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…

Agents of Human Evolution

Men have more genetic variability, which can be negative or positive

It might seem upon first thought that both the male and the female of the species have the same impact on the evolution of our life form, but (the ever-present but), I will show that in this area the impact of the two sexes is not the same. Males contribute more to the change in…