Prof. Jacob Klein from Weizmann Institute of Science was invited to visit the State Key Laboratory of Tribology and give two presentations on “Supramolecular synergy in joint and tendon lubrication” and “Hydration lubrication at hydrophobic surfaces” on October 12-13, respectively. Academician Jianbin Luo , Prof. Yonggang Meng, Prof. Yu Tian, Associate Professor Liran Ma and graduate students attended this activity.