About Fluorescent Nanodiamonds (FNDs) are nanometre-sized diamonds made of carbon nanoparticles. They are produced in a process that involves high temperature and high pressure. FNDs are stable under light and aren’t toxic to living things, so they have many applications …
About The S-400 Triumf is a mobile surface-to-air missile (SAM) system developed by Russia. The system can engage all types of aerial targets including aircraft, unmanned aerial vehicles (UAV) and ballistic and cruise missiles within the range of 400km, at …