06/08/2020 12:08 - In ordinary circumstances, ammonium nitrate is fertilizer. But when placed under stress of heat and pressure, it acts like a bomb. ...
06/08/2020 10:08 - Virginia released the first coronavirus contact-tracing app to employ software by Google and Apple. The mayor of Los Angeles said that the city could cut off power to homes that host large gatherings. The W.H.O. said test results for North Korea’s first suspected case were “inconclusive.” ...