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Csaba Singer untersucht die Kostensenkungspotenziale bei der Stromerzeugung mit solarthermischen Turmkraftwerken. Sein Ziel ist die Steigerung des Receiverwirkungsgrades und das Aufzeigen und Bewerten kritischer Aspekte von innovativen Receivertechnologien. Zunachst erfolgt eine Konzeptstudie, die dazu dient, den Stand der Technik der Solarturmkraftwerke mit ausgewahlten Receiveroptionen fur die Erhohung der Dampfprozesstemperaturen zu vergleichen. Diese Studie zeigt, dass die Direktabsorption auf der inneren Mantelflache des Receivers mit nach unten geoffneter Apertur und...

Are child-care centres good for children? How can we provide good day-care? Feminists have long argued for the provision of day-care facilities so that mothers may be free to work outside the home. The call had enjoyed little support from politicians and experts, however. Feminists had been seen to stand for women’s interests, and psychologists and pedagogues for children’s – as if the two were opposed. Only in the early 1990s had the opinions of politicians and experts begun to change. Yet, even so, a positive policy on day-care was still lacking.

Originally published in...

One of the most eclectic and distinctive writers currently working in comics, Grant Morrison (b. 1960) brings the auteurist sensibility of alternative comics and graphic novels to the popular genres-superhero, science fiction, and fantasy-that dominate the American and British comics industries. His comics range from bestsellers featuring the most universally recognized superhero franchises (All-Star Superman, New X-Men, Batman) to more independent, creator-owned work (The Invisibles, The Filth, We3) that defies any generic classification.

In...

Peter Singer, the groundbreaking ethicist whom The New Yorker calls the most influential philosopher alive teams up again with Jim Mason, his coauthor on the acclaimed Animal Factories, to set their critical sights on the food we buy and eat: where it comes from, how it is produced, and whether it was raised humanely.

The Ethics of What We Eat explores the impact our food choices have on humans, animals, and the environment. Recognizing that not all of us will become vegetarians, Singer and Mason offer ways to make healthful, humane food choices. As they point out: You can be...