To save the greatest part of this, S. Adams, of Boston, Mass., has invented a cinder and coal sifter, consisting of a circular riddle attached to a spindle, which can be rotated by hand ...

True cinder blocks are vestiges of an era when coal burning was inefficient and waste cinders were plentiful. In 1913, a ...

Decades of coal ash left behind at Consumers Energy’s J.H. Campbell Generating Complex on the shores of Lake Michigan will be repurposed into a cement replacement used in concrete manufacturing ...