Uncategorized
- Chemistry
Platinumfree fuel cell
Cheaper than a typical hydrogen fuel cell, a new, platinumfree cell runs on a "green" liquid fuel.
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19891
This article describes hydrazine hydrate as a benign and cost-effective alternative fuel to hydrogen. But hydrazine hydrate is a fuming liquid that is toxic, very corrosive, and can decompose explosively. In a reaction with hydrogen peroxide, it powered the German V-2 rockets in World War II. Carl F. Guerci Jr.Severna Park, Md.
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Not Just Hitchhikers
Salmonella and other human pathogens on vegetables aren't just riding along like casual smears of dirt; they're moving in and setting up housekeeping.
- Humans
From the October 9, 1937, issue
Aging ships' hulls rejuvenated by welding, public health workers target five major diseases, and Plato celebrated as the first "round-Earther".
