The freezing point of platinum has been measured on the International Practical Temperature Scale of 1968 to be 1769.5Â°C Â± 0.6Â°C. The instrumentation and methods of experimentation are described. All significant uncertainty components are stated. Possible systematic errors are discussed and their magnitudes evaluated.
Nearly 20,000 inspections occurred in Safe Driver blitz in October, CVSA says. Law enforcement officers conducted 19,480 roadside inspections on commercial drivers and vehicles during the Commercial Vehicle Safety Allianceâs 2015 Operation Safe Driver Week in October, CVSA announced Jan. 5. The total number of inspections dropped from the 24,184 conducted in 2014âs Safe Driver inspection blitz. The top five warnings and citations issued to commercial truck drivers were size and weight, speeding, failure to use a seatbelt, failure to obey a traffic control device and using a handheld phone.
September 1940-May 1941. The Blitz was Nazi Germany's sustained aerial bombing campaign against Britain in World War Two. The raids killed 43,000 civilians and lasted for eight months, petering out when Hitler began to focus on his plans for Russian invasion in May 1941. Photo: People in Coventry walk to work past smouldering piles of rubble after a bombing raid in 1940. (Getty Images)