Diphtheria. An acute infectious disease of humans caused by Corynebacterium diphtheriae. Classically, the disease is characterized by low-grade fever, sore throat, and a pseudomembrane covering the tonsils and pharynx.
Statistician / Economist formerly employed in various Government Departments in the UK, freelance mathematics and statistics tutor since retiring in 2008, Fellow of the Royal Statistical Society. 1 second = 100 centiseconds. To help you remember, 1 meter = 100 centimeters and centi- anything is the same.
A nanosecond (ns) is an SI unit of time equal to one billionth of a second (10â9 or 1/1,000,000,000 s). One nanosecond is to one second as one second is to 31.71 years. (Actually the correct answer [per leap years calculation] is one second is to 31.69 years, because there are 365.2422 days in a solar year). The word nanosecond is formed by the prefix nano and the unit second.