Category: Science

Science and math issues that draw my interest and effort.

In the Year 2525

Nasa photo of Halley's Comet in 1986

The cicadas last appeared in 2004 and return every 17 years.
Halley’s Comet last appeared in 1986 and returns every 76 years.
In what year must man be alive to hear the cicadas and see Halley

Deduction and Induction

Deduction is the normal operating mode of the left side of the brain using logic on facts. Induction is the normal operating mode of the right side of the brain using pattern-matching on incomplete information. Normal humans have both operating modes and the results of induction can be used with the results of deduction and…

Coming Climate Crisis?

Coming Climate Crisis? by Claire Parkinson. Subtitle – Consider the Past, Beware the Big Fix It’s nice to read a reasoned, solid reflection of the history of Earth’s climate and the present concerns about climate change. Parkinson has 30+ years of research in ice drifts, satellite image analysis, and the like. And she has taken…