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.
For non-rotating black holes the singularity takes the shape of a single point, whereas for rotating black holes, it forms a ring singularity. Assuming one can survive the tidal forces within the black hole, once you reach the singularity you will be crushed to infinite density and all the mass of your body will be added to the volume of the black hole.