Civil and Hydraulic Engineering Frontier Experiment Learning Logs project2■ Experiments on ice sample preparation and ice physical/mechanical properties under low-temperature environment 1.Laboratory:By the State Key Laboratory of Coastal and Offshore Engineering 2.Professors:Prof.Zhijun Li,and Lecturer Peng Lu 3.Classroom:The State Key Laboratory of Coastal and Offshore Engineering 4.Content abstract: What's the color ice?Of course white.Wherever you come from,the answer is so simple.This lesson will introduce the three rs on the Earth:Antarctic. Arctic,and Qinghai-Tibet Plateau,and the ice distribution among them,also lead you to observe the colorful world and mysteries inside the ice.Do you worry about if we can see the real ice in summer?The low-temperature laboratory of the State Key Laboratory of Coastal and Offshore Engineering will let you feel the cold in the hot summer.This laboratory has an area of 30m2,the lowest temperature of which can reach -30C.But we do not need so cold environments, -15C is ok;and you students can finish the mechanical tests even if you just wear your summer clothes.If possible,you can eat a small piece of ice;it is very cool in the hot summer.Let's do it together,and finish the experiments,then share our findings. This lesson aims at the under-graduate students,through explanation by teachers and accomplishing them by yourself,we want to improve the knowledge of students on the equipment and technologies in sea ice and fresh ice studies,and attract the attentions on the ice research fields This lesson comprises of three main parts:ice sample preparation,ice pieces cutting and crystal observations,test on ice compressive strength. 5.Equipments 1)Low-temperature laboratory. (2 Feishi platform. 3 lce pressure test machine 6.Brief introduction of the professors To study ice problems and get in-situ data of different kinds of ice,Prof.Li has been to Arctic for 3 times,Antarctic for 2 times and to Qinghai-Tibet Plateau for 2 times,and has published more than 200 articles.His interested area includes ice physical and mechanical properties,ice engineering,environmental protection in cold regions,and navigation in ice-covers waters.He has 04