Index:   7Ladders.com
The Seven Ladders Canyon (Canionul Sapte Scari) near Brasov, Romania
Canyon of the Seven Ladders (Canionul Sapte Scari) -- near Brasov, Romania
CONTACT
Ways to reach Jim Barnes


PROFILE
Professional "Curriculum Vitae" of James D. Barnes, Architect (2024)


MICRO-HISTORY
History of the "William Myers Section"
-- Dallas, Texas, USA

Perspective Research:
GRECO-ROMAN HISTORY
Two short essays about Greco-Roman development of Perspective

NON-EUCLIDEAN PERSPECTIVE
An Introduction to the Perspective Illustration of Non-euclidean Geometry

(2017 -- a digital eBook)

      A Mathematical Query
      The Ideal Non-euclidean Gyroscope: An Unsolved Problem

      (2021-- PDF, 1 page plus 1 illustration)

      Notes regarding the Hyperboloid Model
      Comments regarding visualization methods for Hyperbolic Geometry

      (2022 -- PDF, 19 pages)

HOW EYESIGHT DIFFERS FROM PERSPECTIVE
How Perspective is not, but is, an exact simulation of human eyesight

(2019 -- a digital eBook)


Posted: 10th April 2013 -- Last revised: 26th February 2024