Liquid crystals are substances that flow like a liquid but maintain some of the ordered structure of crystals. Liquid-crystal molecules tend to be elongated and to orient in specific directions.

One person has been rushed to a North Queensland hospital after a truck carrying ammonium nitrate rolled on a highway, which has caused an hours-long two-kilometre road closure. Emergency crews ...

National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China ...

Presley Ann/Getty Actor Billy Crystal might be known forever to many as Harry from the 1989 film When Harry Met Sally, but to Jennifer Crystal Foley and Lindsay Crystal, he’s always been Dad.