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After reading this article, I noted that nowhere in the article’s text was it stated how the hydrogen is going to be stored. Storing hydrogen safely and economically is difficult, to say the least. David E. BeesonWinona Lake, Ind.
- Chemistry
Solar Hydrogen
With the vision of a hydrogen economy looming ever larger in people's minds, scientists have picked up the pace of their pursuit of materials that use solar energy to split water and make clean-burning hydrogen fuel.
- Math
Squaring Circles
Cutting a circle into pieces and reassembling the fragments to form a square is a tricky proposition.
- Materials Science
Anyone want to knit a microscopic sweater?
Microscopic polymer tubes can tangle themselves into a new and possibly useful structure—tiny "yarn balls" that flatten out and partly unravel in an electric field.
