By adding nanoparticles made of pure gold and silver to fine Marino wool, researchers in New Zealand have created a rainbow of unexpected colors intended for high-end, couture fashion designers. They unveiled the first scarf dyed with gold nanoparticles….
Spherical gold nanoparticles about 10 nanometers across create a red wine color. As their size increases to 100 nanometers, the color turns red, then purple, blue, and finishes off in various shades of gray.
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New advances in weather-control research may let us divert hurricanes, increase rainfall, and control other “acts of God.”
Not far from the Dead Dog Saloon, behind a body shop on the main street of Grantsville, Utah, stands a rusting, four-foot-tall metal box. The box sits atop a tank of gaseous silver iodide that, when fired up, sends a plume downwind toward…
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The future of our seas has never been more precarious. Ninety years of industrial-scale overfishing has brought us to the brink of an ecological catastrophe and deprived millions of their livelihoods.
Strangely one of the first international attempts to conserve fish stocks, especially for the more easily exploited nations, also became part of the disaster. The United Nations Convention on Law of the Sea, signed in 1979, extended national…
The fiery color red has long been controversial ? so controversial, in fact, that it is commonly banned outright lest it inflame strong emotions, spark revolution, kindle anger, inspire boldness, instigate bloodshed, arouse lust, or provoke pain.
Daniels Farm Elementary School in Trumbull, Connecticut banned its teachers from using red ink to grade student homework. Apparently, parents objected to red as being “too stressful” and symbolic of negativity. “The…
The famous "Educational Series" Silver Certificate. The entire obverse was covered with artwork representing electricity… looks pretty wicked.
A controversial note, this Silver Certificate was part of an educational series. It was deemed inappropriate for American children due to its portrayal of a scantily dressed woman symbolizing liberty. The note was quickly removed from circulation.
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