
LEO DEAN JANSEN, MD
TECHNOLOGY: TABLE, TRUTHS, TIMELINE, TOP 100 & photography

InventTable
Periodic Table of Technology
All of technology history organized into a single table. 1000 Greatest Inventions listed by technology class and time era.
Tech Truths
Laws of Technology
Laws of technology spelled out as 24 truths.
Invention Timeline
Chronology of Inventions
2000 inventions arranged chronologically. Invention, date, inventor, and country of origin listed.
Photography
Capturing Moments of Beauty
Photographs organized by landscape, wildlife, macro/portrait, and urban.

Introduction
Leo Dean Jansen, MD
The history of technology is approached in this website four ways: 1) Periodic Table of Technology, InventTable. 2)Tech Truths – laws, rules, or axioms of technology. 3) Timeline of Inventions. 4) Top 100 Inventions, ranked by importance.

Periodic Table of Technology
InventTable
InventTable is a periodic table defining the 10 classes of technology and the 9 eras of technology. To understand the InventTable is to understand all of technology history.

Laws of Technology
Tech Truths
The history of technology can be partly defined by several laws, rules, axioms, or truths. Technology= population x (time)2

Travel photographer
Leo Dean Jansen photographs
Photography from all seven continents categorized by: landscapes, wildlife, macro/portraits, and urban.