![]() Whenever an experiment is performed in the laboratory, it is paid for by an increase of entropy, and a generalized Carnot Principle states that the price paid in increase of entropy must always be larger than the amount of information gained. ![]() The thermodynamical entropy measures the lack of information about a certain physical system. It enables one to solve the problem of Maxwell's demon and to show a very direct connection between information and entropy. Once stated in a precise way, it can be used for many fundamental scientific discussions. This theory is based on probability considerations. This new theory was initially the result of a very practical and utilitarian discussion of certain basic problems: How is it possible to define the quantity of information contained in a message or telegram to be transmitted? How does one measure the amount of information communicated by a system of telegraphic signals? How does one compare these two quantities and discuss the efficiency of coding devices ? All of these problems, and many similar ones, are of concern to the telecommunication engineer and can now be discussed quantitatively.įrom these discussions there emerged a new theory of both mathematical and practical character. It immediately attracted a great deal of interest and has expanded very rapidly. A new scientific theory has been born during the last few years, the theory of information. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |