The U.S. alone has an estimated 19,000 square miles of asphalt paved roads and parking lots. As essentially everyone can attest, asphalt is a great infrared absorber and being very dense holds a lot of heat thus toasting bare feet with slight sun and barely warm temperatures. Now 19K square miles is a lot of […]

Ausra of Palo Alto, California, who builds utility-level solar thermal power, has raised $24.5 million in a third round of funding from returning investors Khosla Ventures and Kleiner Perkins Caufield & Byers. Now a new investor KERN Partners, based in Alberta, Canada, has also joined the round. This announcement is just over a month from […]

A stunning abundance of energy is available in the form of heat. It’s everywhere, literally, as there remain a few degrees in microwave form from the big bang or something, from more than 15 billion years ago. Heat is a product from the solar activity of every sun, most any chemical reaction, nuclear reactions, gravitational […]

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