Introducing Phil Callahan’s Work: ODPG Conference 2021

Phil Callahan’s keen observations led him to spend a lifetime studying how insects use infrared radiation and electromagnetism as a communication system for finding food, mates and navigating their environment. His many books enlighten readers into how Physics really works in nature. Steve Erickson will give a presentation of Phil’s work and tell how this knowledge will help you better understand the inner workings of your farm. Continue reading Introducing Phil Callahan’s Work: ODPG Conference 2021