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.
On September 1, 1939 German troops swarmed across the Polish border and unleashed the first Blitzkrieg the world had seen. Hitler had been planning his attack since March-ever since German troops occupied the remainder of Czechoslovakia. The Poles suspected as much and readied their defenses.