Mold in your soil may be unsightly, but it's not always a cause for alarm. Some molds are beneficial, but it helps to know what you have in case it's not.

Following is a transcript of the video. Benji Jones: You could say there are two types of mold: the good and the bad. Penicillium notatum, for example, gave rise to the drug penicillin.

Topics include: mold types and functions, mold layout, cost estimation, cavity filling, feed systems, gating, venting, cooling systems, shrinkage, ejector systems, and structural design. Junior status ...