The vast number of factors that influence the behaviour of bulk materials gives rise to many operating problems in solids handling. The interaction of these many variables introduces infinite variety and makes the subject difficult to master. The challenge this poses to the engineer prevents the topic from ever becoming dull, but it can be even interesting if approached in different ways.
The Society of the Protection of Cruelty to Hoppers (SPOCH) Archemides Albert, and his stick with the Horses Head Handle The Parable of the Fallen Arches False Economy The Screw Commandments
