natural science(noun) the sciences involved in the study of the physical world and its phenomena. natural science(Noun) A science involved in studying phenomena or laws of the physical world; a general term of physics, chemistry, biology, astronomy, and so on. Natural science. The natural sciences are those branches of science that seek to elucidate the rules that govern the natural world through scientific methods.
Local number portability (LNP) lets you change your phone company that provides you with your local calls without changing your telephone number(s).Taking your telephone number to another phone company is known as 'porting'.ocal number portability (LNP) lets you change your phone company that provides you with your local calls without changing your telephone number(s).
The range of port numbers from 1024 to 49151 are the registered ports. They are assigned by IANA for specific service upon application by a requesting entity. On most systems, registered ports can be used by ordinary users. This is an incomplete list of notable ports.