Energy (from the Greek ἐνέργεια – energeia, “activity, operation”, from ἐνεργός – energos, “active, working”) is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law.

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2 responses

23 01 2012
António Jardim

Dear Sirs.:

I am finishing a small book in Portuguese called :
“Contribution for the understanding of classical and alternative/renewable energies”.
It is, as the title stresses, a divulgation rather than a scientific book.

To ilustrate I would like to use your photo :
“Dish and Stirling engine. Almeria solar platform” posted in the Internet.

For that I would very much like to obtain your authorisation.

Waiting for your brief answer.

Best regards

24 01 2012


You are authorized to use any images posted on this blog, given that some are in public domain, and our own content is not restricted by any copyright.

Boa sorte com o seu livro

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