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A subject coughing in a cyclic incident. A qualitative examination of airborne droplet transmission with and without wearing a surgical mask. The top and bottom figures show the results at 2 s and 3 s, respectively. Wearing a surgical mask that exhibits an initial efficiency of ~91%. This cannot prevent the transport of the saliva droplets away from the subject. Many droplets penetrate the mask shield and some saliva droplet disease-carrier particles can travel more than 1.2 m. For visualization, the droplets were scaled by a factor of 600 compared to their actual size. The environmental conditions are zero wind speed, ambient temperature 20 °C, pressure 1 atm, and relative humidity 50%. The mouth temperature is 34 °C and the face skin temperature is 32 °C. 775
A South Korean army soldier patrols at the Unification Bridge, which leads to the Panmunjom in the Demilitarized Zone in Paju, South Korea. Tuesday, June 16, 2020. North Korea blew up an inter-Korean liaison office building just inside its border in an act Tuesday that sharply raises tensions on the Korean Peninsula amid deadlocked nuclear diplomacy with the United States. (AP Photo/Ahn Young-joon) 410

A nor'easter already closing schools and canceling thousands of flights Wednesday is set to bring record-setting snow to the region.The fourth nor'easter in three weeks will dump heavy snow, winds and even coastal flooding to some areas. It has potential to be one of the most significant and most disruptive snowstorms this late in the season, CNN meteorologists said.Snow has begun to fall and it will pick up while more than 70 million people are under a winter storm watch, warning or advisory from the southern Appalachians to Boston. 547
A New York appeals court has cleared the way for a publisher to distribute a tell-all book by President Donald Trump's niece over the objections of the president's brother. The New York State Supreme Court Appellate Division issued the written decision late Wednesday. The appeals court lifted a restraint that a judge put on Simon & Schuster that sought to block its distribution. But it left in place restraints against Mary Trump. She's the author of “Too Much and Never Enough: How My Family Created the World’s Most Dangerous Man.” The publisher, Simon & Schuster, and a lawyer for Mary Trump praised the ruling. An email seeking comment was sent to a lawyer for Robert Trump, who sued Mary Trump. 718
A video of a woman who was allegedly resisting arrest while being beaten by police officers on a New Jersey beach on Saturday has been shared 1,000s of times since being published. Emily Weinman, a resident of Philadelphia, claimed that officers questioned her about underage drinking while she was on a beach in Wildwood, New Jersey. Weinman claimed that she was given an alcohol breath test, which came back negative. Weinman added in a Facebook post that the officers from the Wildwood, New Jersey Police were going to let her go, but when she asked officers why they were enforcing underage drinking rather than more serious crimes, that is when the officers had a change of heart. Weinman said that officers asked for her to identify herself, which she refused to do. Weinman claims an officer said, "I was gonna let you go but now I'll write you up." 894
来源:资阳报