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LEO DEAN JANSEN, MD

TECHNOLOGY:  TABLE, TRUTHS, TIMELINE, TOP 100 & photography

1Q9A5976-Pano-2

InventTable

Periodic Table of Technology

All of technology history organized into a single table. 1000 Greatest Inventions listed by technology class and time era.

See the InventTable

Tech Truths

Laws of Technology

Laws of technology spelled out as 24 truths.

Read the Truths

Invention Timeline

Chronology of Inventions

2000 inventions arranged chronologically.  Invention, date, inventor, and country of origin listed.

Scroll the Timeline

Photography

Capturing Moments of Beauty

Photographs organized by landscape, wildlife, macro/portrait, and urban.

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Introduction

Leo Dean Jansen, MD

Periodic Table of Technology

InventTable

Laws of Technology

Tech Truths

Travel photographer

Leo Dean Jansen photographs