Physics

Critical Mass: How One Thing Leads to Another

Why is society organized the way it is? Is it possible to use some of the laws of the physical universe to understand why and how national economies, stock and commodity markets, companies and clubs organize the way they do? Can physics provides "laws" of human nature that are as useful and universal as those of mechanics?

The Art of the Catapult: Build Greek Ballistae, Roman Onagers, English Trebuchets, and More Ancient Artillery

Gurstelle also wrote "Building Bots: Designing and Building Warrior Robots", but I haven't read that one. "Catapult" is definitely in the spirit of "build it yourself", that I like to encourage here and also in "The Cost-Effective Teacher" feature in the print Journal.

The Snowflake: Winter's Secret Beauty

How do you know that no two snowflakes are exactly alike? Does it matter? For the scientist, the similarities between snowflakes are just an interesting, and probably much more important, than their differences. The author of the text in "The Snowflake" is Chairman of the Physics Department at Caltech.

Galileo's Finger: The Ten Great Ideas of Science

What would you say are the greatest scientific ideas that mankind has discovered? Most of us chemists would say that the notion that matter consists of atoms would have to be one of them, and physical chemist Peter Atkins does not disappoint us on that score. He also treads ground familiar to us when he describes entropy and energy, and evolution and DNA.