These apps capture the functionality of the traditional PPlane and DField apps created by John C. Polking in MATLAB between 1995 and 2003 [1]. While similar in function to the original apps, the Slope ...

Twenty years ago, cognitive psychologist Elizabeth Spelke took a strong position in an ongoing public debate. "There are no ...

Scale three-view drawing (top, front, right side views) of de Havilland (Airco) D.H.4 with 400 h.p. Liberty engine, circa 1917, American license-built as DH-4 by several manufacturers including ...