"When the load is uniformly distributed on a beam of any cross-section, it will sustain a load twice as great as when the load is applied in the middle between the supports." — Hallock, 1905

Beam Strength

"When the load is uniformly distributed on a beam of any cross-section, it will sustain a load twice…

An I-Beam girder is a load bearing beam of steel or iron. It is shaped like a capital letter I.

I-Beam Girder

An I-Beam girder is a load bearing beam of steel or iron. It is shaped like a capital letter I.

"This sublime tragedy was enacted about 460 B.C. All the characters in it are superhuman. The divine hero Prometheus has been doomed by Zeus to be chained to Mount Caucasus, in Scythia. This is his punishment for his benefactions to mankind, espeically the gift of fire, which he had stolen from heaven. The god Hephaestus, with his attendants, Strength and Force, execute the king's decree. The chained hero is visited by the god Oceanus and his daughters, who commiserate his fate." — The Delphian Society, 1913

Prometheus bound

"This sublime tragedy was enacted about 460 B.C. All the characters in it are superhuman. The divine…

"The shearing strength of any material is the resistance offered by its fibers to being cut in two, as shown [here]." —Hallock 1905

Shearing Strength

"The shearing strength of any material is the resistance offered by its fibers to being cut in two,…

"Since the strength of the fibers in adhesion is very much less than in tension and compression, adhesion enters into nearly every test as an important factor. Thus, if a piece of wood consisting of several fibers is tested in tension, the fibers a and b would probably not break at all, but be merely pulled out, the failure, as far as they are concerned, being due to lack of adhesion and not to a lack of tensile strength. Every tension test presents numerous cases of this king, the broken fibers presenting no even fracture, but being splintered and drawn out especially if the wood is good."—Government Printing Office, 1897

Behavior of Fibers in Tension Test

"Since the strength of the fibers in adhesion is very much less than in tension and compression, adhesion…