In computing, Extract, Transform and Load (ETL) refers to a process in database usage and especially in data warehousing that performs: Data extraction â extracts data from homogeneous or heterogeneous data sources.
(Beginner) Reading astronomy books, I've come up with the word singularity a lot, but I can't figure out what it exactly means. A singularity means a point where some property is infinite. For example, at the center of a black hole, according to classical theory, the density is infinite (because a finite mass is compressed to a zero volume). Hence it is a singularity.
Put as starkly as that, the idea is certainly irrational and unscientific. But a gargantuan heap of statistical work over the last century and half has identified some significant tendencies to unusual weather at particular times of the year. These seasonal tendencies are called singularities  a word coined by the German climatologist, A.Schmauss, in 1938.