In sports popularization physical knowledge Abstract: physics is an research material movement the general rules and basic structure of science， it is also the basic theory of sports one of the basic theory of various sports contains rich knowledge of This article from the student's actual conditions， the physical knowledge for middle school sports issues and make this one specific compared with a comprehensive analysis of the concrete analysis based on the theory of the physics of sports Let everybody realize: the physical knowledge and combine of sports science， not only can stimulate students' interest in study of physics， but also can improve the physical and mental health of the high school students and improve sports Keywords: high school; The sports; Physical; Table tennis; football
Abstract: The gem microscope， polarized light microscopy and conventional gem identification equipment， infrared spectroscopy， X fluorescence spectroscopy， grating spectral analysis， the horny-coral gem features for the preliminary The results showed that: horny corals of almost pure composition of organic matter， and its main components for iodine (I) elements， a secondary component for chlorine (Cl)， bromine (Br)， barium (Ba)， sulfur (S) Through the measured， to obtain their physical， optical and chemical characteristics of such Through polarized light microscopy studies， discussed the growth mechanism and its layered structure of the causes， but also explore the coral reef of the infrared spectral Key words: horny gold coral， black corals， internal and external features， precious stones characteristics， characteristics of chemical elements
