Mobile devices can also create their own small hot spots, including phones and dedicated data devices. The service is enabled by one or more Wi-Fi access points set up by whoever offers the hot spot. The access point is a small electronic box connected to the Internet, with a Wi-Fi radio and antenna.
Furthermore, based on Ranganathan's laws, Jim Thompson (1992) in protesting against a library services, revised Ranganathan's laws to the following statements: 1  Books are for profit. 2  Every reader his bill. 3  Every copy its bill.  Take the cash of the 1  reader. The library is a groaning organism.
This was a radical departure from the thought processes of his era, and it is a signal of the beginning of our modern scientific age. In 1609, Kepler published his first and second laws of planetary motion, The Law of Ellipses and The Equal-Areas Law. Ten years later he published a third law, The Harmonic Law.