School of Physics and Technology, Wuhan University, Wuhan 430072, China Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, ...

In the middle of the TV is an upside-down pink triangle crossed out by a red "no" symbol. The pink triangle was used as a badge to identify gay men in concentration camps, and many received ...

Russia has hit on an "offensive triangle" of tactics that are forcing Ukraine to lose ground. The key to reviving Russian airpower has been a surprisingly low-tech weapon: glide bombs. Glide bombs ...