The Earth-Sun Lagrangian point 4 is a meta-stable location at 1 AU from the Sun, 60° ahead of Earth's orbit. It has an uninterrupted view solar photosphere centered on W60, nominal magnetic field connection to Sun. Such mission its own would serve as remote sensing observatory that oversee entire radiation hemisphere with significant relevance for protecting Moon and Mars explorers exposure. In...

background; musculoskeletal disorders (msds) are among the most prevalent pains which could be ignited via material handling. backpack wearers are among those who may carry heavy loads. since msds mainly originate in school-aged children, students (as the largest group of backpack wearers) are considered more important. the purpose of this study is to design a backpack based on minimization of ...