A pressure bulkhead for a fuselage of an aircraft is configured for bounding a fuselage interior relative to an external environment. The pressure bulkhead includes a flat skin configured to span a cross-section of the fuselage and having a cavity disposed at a core region of the skin. The core region...
The Iron Ring is a symbolic ring worn by most Canadian engineers. The Ring is a symbol of both pride and humility for the engineering profession, and is always worn on the pinky of the dominant hand. In the United Kingdom the signet ring is traditionally worn on a gentleman's left fifth digit.
A pinky promise (or pinky swear) is a gesture in which two parties interlock little fingers in a symbolic gesture of agreement. What is the origin of this phrase? One possibility, and probably the most straightforward one, is that it is an independent invention to describe an existing cultural practice of sealing promises by interlocking little fingers.