California bullet train costs soar to $77B; opening delayed

The projected cost of California's bullet train between San Francisco and Los Angeles has jumped to $77 billion and the completion date has been pushed back four years to 2033, according to a business plan released Friday.

Flat gallium joins roster of new 2-D materials

Scientists at Rice University and the Indian Institute of Science, Bangalore, have discovered a method to make atomically flat gallium that shows promise for nanoscale electronics.

Metal-organic compounds produces new class of glass

Lightning and volcanos both produce glass, and humans have been making glass from silicon dioxide since prehistory. Industrialization brought us boron-based glasses, polymer glasses and metallic glasses, but now an international ...

A model for autoignition in turbulent jets

Jets are rapid streams of liquids or gases that forcefully shoot into a surrounding medium. When ignitable substances are involved, combustion—rapid chemical reactions that result in heat and light—can occur. Combustion ...

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