The Gravity Recovery and Climate Experiment(GRACE) has been measuring temporal and spatial variations of mass redistribution within the Earth system since2002.
The design of the mousetrap has notchanged in centuries. Every inventorwants to design a better one. This is thestory of one such inventor, a man called Herber
Based on thermal-stress coupling analysis and material properties studies,the vibration-induced friction process of a special used heavy-load bolt has been simu
AUTHOR’S CONFESSIONLike all Uruguayan children,I wantedto be a soccer player.I played quite well-in fact,I was terrific-but only at nightwhen I was asleep.Dur