For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays—without the ...

“Crystallized ruthenium is a material not widely used in the industry,” Mr. Béchu said, although his brand has used it on ...

An international team has captured an unprecedented image of a cosmic filament connecting two galaxies. This discovery sheds ...

Watts, lumens, volts: how do you make sense of it all? Learn more about what lumens are, how to measure them, and how they ...