A: A rhombus is an equilateral parallelogram, which is a two-dimensional, four-sided figure in which opposite sides are parallel and all sides have equal length. A square fits this definition. However, it is usually considered a special case, and some definitions of a rhombus specify that squares are not included.
Who invented a piston-driven steam engine that could power all kinds of industrial machinery? A. Edmund Cartwright B. James Hargreaves C. James Watt D. Richard Arkwright. JAMES WATT invented a piston-driven steam engine that could power all kinds of industrial machinery.
Newcomen's great achievement was his steam engine, developed around 1712, combining the ideas of Thomas Savery and Denis Papin he created a steam engine for the purpose of lifting water out of a tin mine. It is likely that Newcomen was already acquainted with Savery, whose forebears were merchants in south Devon.