This is one of a planned series called Calculations for Science Fiction Writers. Other chapters will include space travel with constant acceleration, relativistic and nonrelativistic cases, elliptic……続きを見る
Une aventure en pleine seconde ère d'un monde encore peu connu.
Un jeune garçon tenant entre ses mains le destin de toute une île.
Une histoire faite de rencontres scellant l'avenir de chacun.
Des c……続きを見る
Provides a diverse, multi-faceted approach to health care evaluation and management
The U.S. Health Care System: Origins, Organization and Opportunities provides a comprehensive introduction and res……続きを見る
A Marginal Revolution Book of the Year
After tracking the lives of thousands of people from birth to midlife, four of the world’s preeminent psychologists reveal what they have learned about how hum……続きを見る
Trying to get a sense of scale in the Solar System can be difficult, because the distances involved are outside the realm of ordinary experience. Planets and other bodies also move at much greater s……続きを見る