The invention of clear window glass allowed the ancient Romans to trap solar energy to enhance their gardening techniques to grow vegetables out of season and exotic non-native plants in Rome. A thousand years later, empire builders in Europe rediscovered the trapping of solar heat with clear window glass so they as well could enjoy the foreign plants in their own back yard and grow native vegetables throughout the year.
For many people, going green seems like a daunting task, but in reality, a few simple lifestyle changes is all you need.
Tips for solar advocates to invest money smartly and be part of the growing solar market
By John Perlin
Chinese archaeologists have recently found the oldest solar device – a bronze concave mirror – capable of almost instantaneously making fire from sunlight.
But what happens if progress in poverty’s eradication far-outpaces green energy solutions? Two of the most important issues of our century — clean energy and poverty eradication - are potentially mutually exclusive, if development efforts do not factor in increased consumption that will occur.
By Toby Grotz
Nothing lasts forever, let's do the math.
Alternative energy has become a hot topic in recent years as we try and work towards more sustainable resources. Whether we'll get there or not remains to be seen.
By John Perlin
When writing his great work On Architecture, Rome’s greatest solar architect Vitruvius emphasized proper solar orientation for buildings and bath houses.
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