Physicist, Hubert Mack Thaxton: An Early Black American Scientist in Nuclear Physics
By: 
Paul A. Heckert
Galileo's Thermometer: How Does a Galileo Thermometer Tell the Temperature?
By: Paul A. Heckert
Galileo's Telescope Discoveries: Galileo Observed the Sun, Moon, Jupiter, Venus, Saturn, and Stars
By: Paul A. Heckert
Galileo and the Pendulum: Pendulums, Clocks, Longitude, and Navigation
By: Paul A. Heckert
