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Powell's Books | The World's Largest Independent Bookstore

Shop new, used, rare, and out-of-print books. Powell's is an independent bookstore based in Portland, Oregon. Browse staff picks, author features, and more.

Solar Roadways Project: A Really Bad Idea - Roy Spencer

This Solar Roadways project started showing up in my Facebook news feed, and seems to be getting a lot of popular support.. Except, I'm guessing, from actual engineers. The idea that we can convert our roadway surfaces to electrical generation solar collectors has numerous practical problems.

Archaeoastronomy - Wikipedia

Archaeoastronomy (also spelled archeoastronomy) is the interdisciplinary or multidisciplinary study of how people in the past "have understood the phenomena in the sky, how they used these phenomena and what role the sky played in their cultures".

Solar Returns: Interpreting Solar Returns: Predictions by ...

Ciro Discepolo SOLAR RETURNS Interpreting Solar Returns: Predictions. Ricerca '90 Publisher. Translation and editing: Luciano Drusetta and Ram Ramakrishnan

How Artificial Light Is Wrecking Your Sleep, and What to Do ...

How Artificial Light Is Wrecking Your Sleep, and What to Do about It. Read more and find related Cancer, Depression & Mental Health, Heart Disease, Sleep articles from Chris Kresser.

Light - Wikipedia

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.The word usually refers to visible light, which is the visible spectrum that is visible to the human eye and is responsible for the sense of sight.

BibMe: Free Bibliography & Citation Maker - MLA, APA, Chicago ...

BibMe Free Bibliography & Citation Maker - MLA, APA, Chicago, Harvard

National Geographic Magazine

National Geographic stories take you on a journey that's always enlightening, often surprising, and unfailingly fascinating.

Business Planning | A Revolutionary Approach to Business Planning

The Home of the 4 Hour Investor Grade Business Plan. Faster investor quality documentation using HyperQuestions