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.
Scientists began tinkering seriously with steam in the early 1600s and, like most inventions of the day, it was a team effort that ultimately led to the first working steam engine. In 1698, British inventor Thomas Savery patented a steam-powered pump, which he described as an engine to raise water by fire.. Savery's very basic engine relied on steam to create a vacuum and pull water upwards through a pipe â a theory that had been around for several centuries but never successfully applied. The technology was improved with pistons and cylinders by Thomas Newcomen, a blacksmith, and again by Watt in the mid-18th century.