Trump is scrubbing Black history to sell a cleaner lie about America by erasing racism, history and Black achievement.

Ultraviolet-B (UV-B) semiconductor lasers are highly sought for medical, biotechnology, and precision manufacturing applications; however, previous UV-B laser diodes were limited to pulsed operation ...

Gemstones like precious opal are beautiful to look at and deceivingly complex. As you look at such gems from different angles ...

As screens blur the line between work and home, some people are slowing down and disconnecting by looking to communication ...

As communities across the country prepare Monday to host parades, panels and service projects for the 40th anniversary of ...

Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China ...