A single-ion reservoir has been tested, and characterized in order to be used as a highly sensitive optical detector of electric signals arriving at the trapping electrodes. Our system consists of a ...

Scientists have shown that the two exponents (inelastic scattering exponent and dephasing exponent) commonly used to describe ...

Proton-exchange membrane fuel cells are promising clean power-generation technologies that do not emit carbon dioxide during ...

Recently in my physics lab, students were having trouble with the difference between mass and weight. I had ready answers---it’s a topic I’ve gone over hundreds of times. But after I explained that ...

From AR-powered rulers to GPS-based land survey tools, these 8 best measuring apps for iPhone and Android let you measure length, height, area, and even perimeters on the go. Accurate, versatile, and ...

The presentation of loudspeaker measurements varies wildly from manufacturer to manufacturer. This means that, without independent analysis, consumers are left comparing specifications that were ...

Letter sizes — like S, M, L or XL — are essentially useless unless you know your measurements. Am I a Medium or Large? Why You Might Wear One Size from One Brand and a Bigger One from Another Products ...