According to the British science journal Nature reported from London wetting angle measurement, Chinese scientists have proven called water strider insect is standing mystery of how to achieve stability on the water strider does not sink to. This water insects unsinkable mysteries article through multi-screened experts eventually published to the well-known publications - Natural Science magazine. This is a Chinese chemist in natural science magazine published the first article, creating a new era in the field of physical and chemical research. This article was written by Professor Jiang Lei Institute of Chemistry and his Ph.D. high cedar. In the course of the experiment the scientists studied using optical contact angle measuring instrument to effectively carry out experiments and obtain accurate experimental data wetting angle of water droplets angle measurement instruments and supporting software for the analysis of the experimental results collected to provide a convenient process. The method can accurately quantitatively calculate bending characteristic parameter values, i.e., the equivalent flexural modulus, and flexural rigidity. Equivalent bending modulus is independent of the fiber diameter values ??of the essential characteristics of the flexural properties of the fibrous material reflects, by a single molecular structure of the fiber material itself determined numerically equivalent to pure tensile modulus and compression modulus of the integral along the fiber cross-section average and. 2 drilling heating pipe installation from the perspective of understanding of heat transfer, heat pipe installation To fit the mold surface as possible, in order to facilitate heat transfer heat pipe to the mold as soon as possible. In fact heating tube and the mold and the contact area is not much wetting angle, the nature of heat transfer is radiation, conduction is secondary. Thus most of the heating tube surface for mounting the mold are coated with a coating to enhance the contact angle of the infrared radiation standard sample, but also limits the use of the design power (10 watts / cm) approach to increase the life of the heating tube. Therefore, when heating the processing hole, especially the long hole of the heating process is not necessary to design with the gap is too small, the design method is effective at both ends of the hole of the heating tube with tight fit, may be employed as filling, sealing or other measures designed to blank. This approach can effectively reduce the heat dissipation area and the radiant heat pipe losses. Wetting angle standard sample _ ShengDing instrument (certified) _ Lechang wetting angle provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) is Dongguan, Guangdong, dedicated instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Sheng Ding instrument in leadership with the staff warmly welcome all inquiries negotiations to create ShengDing instrument a better future.