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Search News by Chad Boutin

Displaying 426 - 450 of 539

Progress and Promise in DIAL LIDAR

For climatologists and environmental policy makers who need to determine the flux of greenhouse gases (GHG), there are three paramount questions: Where is it

UV Lithography: Taking Extreme Measures

Sometime soon, microchip fabricators will take the next major step in the relentless reduction of feature size, from the current minimum of 22 nm down to 10 nm

Bright Future for GaN Nanowires

The gallium nitride nanowires grown by PML scientists may only be a few tenths of a micrometer in diameter, but they promise a very wide range of applications

Adding Up Photons with a TES

Scientists have demonstrated that a superconducting detector called a transition edge sensor (TES) is capable of counting the number of as many as 1,000 photons

Redefining the SI Base Units

Note: Much more recent information is available about redefinition of the SI units. For a comprehensive general overview, see How to Weigh Everything from

Traveling SIRCUS Tests Satellite Sensors

For NASA's Earth Observing System satellite fleet, sensor failure is not an option. The nation depends critically on the data from those satellites, orbiting