Excerpts from the Introduction: The Retina The eye does not see the shape of the world. I look and it is not there. Across the fencerow the field is level. Beyond are slopes
The enigmas of quantum mechanics: tunneling, the uncertainty principle, collapse of the wave function, etc., all involve space and time dimensions and all involve the role of the observer. The enigmas of special
Presentation: November 16, 2017 Elizabethtown Community and Technical College. As scientific knowledge presents an expanding universe of human interaction with nature, America retreats to a shrinking world of national prejudice and economic materialism.
The pieces finally came together: I bought a plug-in hybrid car (Chevy Volt) and installed a new set of solar panels on the garage roof. I’m driving on sunshine! The Volt looks and
I am an activist. I speak out. I take to the streets. I am content in my personal life, am not oppressed, and have no gripe against society, but I believe humanity is
At first glance, the two are polar opposites: one is the external, objective, material world, while the other is the interior, subjective world of direct experience. Physics is matter in motion, the concrete and
Sierra Club Presentation on Solar Energy – Louisville 2 ½ billion years ago a little single-celled bacterium invented the solar collector. At the time, there were no plants and no animals on the Earth. An
Here’s a video of some words I shared about climate and the pipeline at the Festival of Faiths in Louisville
Climate chaos is the first crisis in human history that is truly planetary in scale. It involves all people everywhere in relation to the natural world. Within the Earth’s atmosphere humanity exists as a
We all heard Obama say he would turn down the Keystone XL pipeline if it causes carbon emissions to be “significantly” worse. We also know that the Canadian tar sands constitute the second largest
How much more fossil fuel can we burn before we get to the two-degree limit? Recent studies show that we can burn between 565 billion and 900 billion additional tons of carbon
So, what happens if we go above the two-degree limit? If the average global temperature rises above two degrees Celsius, we risk initiating what are called feedback loops. A positive feedback loop is a dynamic system in