UC#3 has asked the near-impossible of WLBOTT. He wants us to make “plumb bobs” interesting.
UC#2 might want to pivot on his research to fully investigate the origins and use of plumb bobs in ancient Egyptian, Greek and Roman construction. Full Fulbright guaranteed
UC#3
Challenge Accepted!
Etymology
The plumb in plumb bob derives from Latin plumbum (‘lead’), the material once used for the weighted bob at the end. The adjective plumb developed by extension, as did the noun aplomb, from the notion of “standing upright”.
[But what about the “bob?”]
Determining center of gravity of an irregular shape
Students of figure drawing will also make use of a plumb line to find the vertical axis through the center of gravity of their subject and lay it down on paper as a point of reference.
Wikipedia
Figure Drawings
Lifelike Heads
Lifelike Heads: Discover Your Inner Artist as You Learn to Draw Portraits in Graphite
This book is the perfect guide for creating lifelike representations of the human head in graphite. Experienced artist Lance Richlin begins by explaining drawing tools and materials, shading techniques, and the important anatomical structures of the head.
Amazon
AI has some “alternate” views of the Lifelike Head.
Oh, Grow Up!
Wooden Mannequins to Help Us Out
Scott Eaton’s Bodies in Motion
Scott Eaton has some beautiful images of Bodies in Motion on his web site and Facebook page.