Some major puzzles in black hole theory and General Relativity, including Hawking radiation, information puzzle, singularity theorem and synchronization of clock rate, are presented.

The origins of black hole entropy and the black hole information paradox have long been puzzled problems to most theoretical physicists.

New Progress of Studying on Chemical Energy Exchanging to Mechanical Energy Directly in Polymer Chain through Cooperative Excitation between Information and Energy of Mechanical Chemical Reaction;

Material weighing system and information management in an enterprise;

Definition and classification research of mine ventilation information;

This paper introduces the structure and constitute of lathe workstation,message swaping between workstation computer, unit-control computer, CNC system and applied program compiling of workstation.

The Chinese word "You" has the function of copying message,so it is a copying adverb.

ISO 17664:2004"Sterilization of medical equipments the disposition informations of medical equipments"comment;

The functions of informations in the management decision-making,organizing and controlling are discussed.

To sum up experiences of instructing the matches and compertitions in recent years,the writer of the essay elaborates a series of methods,and steps of how to collect pre-match informations,to make certain match device and to direct the actions of players.