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Singularities Explained

Mathematician Kelsey Houston-Edwards explains exactly what singularities are and how they exist right under our noses. Video by PBS on Youtube.

Metal on semiconductors may lead to invisibility cloaks

Researchers have developed a new technique that peppers metallic nanoparticles into semiconductors, an advance that could boost the efficiency of LED lighting by 50 percent and even pave the way for invisibility cloaking devices.

It’s the first technique that can inexpensively grow metal nanoparticles both on and below the surface of semiconductors.

The process adds virtually no cost during manufacturing and its improved efficiency could allow manufacturers to use fewer semiconductors in finished products, making them less expensive.

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