The link polygon is not used, so that parallel forces are scarcely referred to. It will be seen how extremely limited is the ground covered by this book.

Whenever a question is set in any examination, in which candidates are asked to find the resultant or centre of a number of parallel forces in such cases as that of a rod loaded at different ...

Investigating solar corona structures has led Paul Bellan, Caltech professor of applied physics, and his former graduate ...