Abstract: Engineers solve problems well, but sometimes they write poorly. They try to write with an academic tone by using overworked, important‐sounding expressions; by filling sentences with adjectives and adverbs; by using lifeless ...

Abstract: Laboratory models made of sand, water, and small amounts of cement (“weak mortar”) are shown to be practical, inexpensive alternatives to standard porous media models made from sand epoxy resins, glass geads, or sand only. ...