Normally, I ignore emails like this one from “Yura,” but, for some reason, I got sucked in here. Yura: I have a proposition for you: a generator that produces electricity only using the Earth’s gravity. My device has been experimentally tested. …
Category: Renewables – Science
Thanks to Isaac Newton
Yesterday was the anniversary of the date on which Isaac Newton published The Mathematical Principles of Natural Philosophy in 1687, his paper that laid out a set of discoveries that rank among the most important in the history of humankind: the …
Logic Figures Prominently in Our Evaluation of Renewable Energy Concepts
Here’s the guts of an email conversation I had last week with a reader who asked me for my take on a renewable energy concept whose IP its inventor appears ready to give away for free. I found the discourse kind …
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Is There Enough Solar Power for the Entire World?
It’s been a while since I wrote a post reminding us all exactly how little area is required, in relative terms, to provide enough solar power for the entire world. Numbers are cool, but graphics are better. Linked above is …
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Ah, Come On — Can’t the Earth Be an “After Planet?”
Today is the anniversary of the first well-known UFO sighting in 1947, a good time to ask readers to ponder the most obvious question related to this phenomenon: Are we alone in the universe? Dr. Michio Kaku, the ubiquitous physics …
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In the Development of Clean Energy Technology, Heroes Win Prizes, Frauds Go To Prison
I’m happy and proud that many hundred 2GreenEnergy readers have relied on me over the past few years for my feedback on the validity of new concepts in clean energy vis-à-vis the laws of physics. Sadly, though, almost all of …
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Collecting Solar Energy in Space and Beaming It To Earth
I notice periodic comments and guest blogs on the prospect of beaming energy from space; linked here is one that went up today. I feel I should point out that this will never happen. Why? Because it doesn’t need to …
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More on Solar/Wind Tower Hoax
Emil comments on my piece lampooning the solar/wind tower that developers claim will soon be built in Arizona, in which I noted that, given the figures they presented, the implied price of electricity was huge. Well, if you go back …
From Guest Blogger Patrick Kennedy: Sources of Energy
Electricity is a formidable component of daily life. We use it to heat, cool, and power our homes, offices, airports, and industrial endeavors. Electricity is so prevalent that we often forget where it comes from, much less how it is …
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Can We Use Artificial Photosynthesis to Remove CO2 from the Atmosphere?
I just had an interesting call from a fellow in Germany who introduced me to “faux trees,” i.e., artificial photosynthesis, performed to remove CO2 from the atmosphere. Here is one of those many cases where just because a concept doesn’t …
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