Someone asked me why high voltages are used to transmit power over long distances, so I thought I’d make a post on the explanation. Power = current time voltage, and voltage = current times resistance. P = IV and V …
Category: Renewables – Science
One of Nanotechnology’s Bazillion Potential Benefits
Is it possible to cool an object to a temperature below that of its surroundings? Let’s consider that for a moment. If you take a pie out of your oven at 375°F and put it on the sill of an open …
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Science in the Cross-Hairs
As the United States continues its plunge into ignorance and hate, we often hear people ask, “How much worse can it get?” Though that’s normally posed as a rhetorical question, our country keeps coming up with some really excellent answers, as shown …
Tagged with: Science in the Cross-Hairs
The Ecological Magic of Trees
Green plants sequester CO2 as they grow by converting it via photosynthesis into carbohydrates. In almost all cases, these more complicated carbon molecules are broken down after the organism’s death and the CO2 is re-released in to the atmosphere; this …
Borowitz: Nation Apparently Believed in Science at Some Point
If there is a more clever person than The New Yorker’s Andy Borowitz, I sure would like to meet him. I urge anyone with both a sense of humor and a concern for the criminally absurd state of the U.S. federal …
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Our Post-Truth World
We live our lives inundated with lies from every direction, and at every level, so, in a certain sense, fraudulent crap like this shouldn’t be surprising.
Tagged with: solar PV "breakthrough"
Dire Ecological Warning, But Will It Change Anything?
What happens when an expert group calls for transformative change, based on a documented decline of the natural world? That’s the subject of this article in Science Magazine. One million of the eight million total plant and animal species is …
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Will Technology Save Us?
Whether or not the evolution of technology on this planet will help our civilization avert the environmental catastrophe that our scientists forecast for us is impossible to predict.
Former Republican EPA Directors Says Trump Administration Is “Undermining Science”
Here’s an interview with three Republicans who led the Environmental Protection Agency in years going back to the Reagan administration. They joined four Democrats in writing a joint letter to the EPA oversight committee, in which they express their concern that …
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Piezoelectric Walkways
Here’s a video on the proposed use of piezoelectricity (electric power produced when mechanical stress is applied to certain crystals) in walkways. This is a neat concept, but it’s extremely impractical, with the possible exception of extremely highly trafficked areas, …
