INTO STABILITY

INTO STABILITYINTO STABILITYINTO STABILITY

INTO STABILITY

INTO STABILITYINTO STABILITYINTO STABILITY
  • Sign In
  • Create Account

  • Orders
  • My Account
  • Signed in as:

  • filler@godaddy.com


  • Orders
  • My Account
  • Sign out

Signed in as:

filler@godaddy.com

  • Home
  • INTO STABILITY
  • FOREWORD
  • TABLE OF CONTENTS
  • INTRODUCTION
  • 1: ST LOUIS
  • 2. SCHENECTADY
  • 3. GE'S ADVANCED COURSE
  • 4. GRAPHICAL ANAL. PAPER
  • 5. NORTH AMER. AVIATION
  • 6 AEROPHYSICS LAB
  • 7: THE SPIRULE
  • 8. THE ROOT LOCUS PAPER
  • 9. TEXTBOOK
  • 10. AUTONETICS
  • 11. THE SPIRULE COMPANY
  • EPILOGUE
  • AFTERWORD
  • ARTWORK
  • RUFUS OLDENBURGER AWARD
    • ROOT LOCUS AND WALT
    • LIFE IN LEFT HALF PLANE
  • TRIBUTES AFTER HIS DEATH
    • "TRIBUTE" BY BOB CANNON
    • "IN MEMORIAM" BY D.BENTLY
  • APPENDICES
    • 1985-2003 NAA Letters
    • 2003-24 Colleague Letters
  • BONUS CONTENT FOR FAMILY
  • ROOT LOCUS EXPLANATIONS
  • FIVE VIDEOS
  • BOOKS ABOUT HIS ANCESTORS
    • RECORD OF MY LIFE
    • JAMES BURGESS JOURNAL
    • SAINTS, SETTLERS, SPIRITS
    • VOICES OF THE PAST
    • HIS TRUTH IS MARCHING ON
    • SAINTS:TRAILS TO ST.LOUIS
    • Christmas at ElVenado
  • Blank
  • PRODUCTS

Account


  • Orders
  • My Account
  • Sign out


  • Sign In
  • Orders
  • My Account

Order here today or on Amazon on November 14

Walter R. Evans and the Story of Root Locus

Welcome to "Into Stability

Uncover the legacy of Walter Evans on our website. We host key documents for his forthcoming book and a stunning collection of left-handed artworks.  You may order books and spirules HERE

Into Stability

WHY ROOT LOCUS MATTERS

 In the aftermath of World War II, engineers faced challenges their slide rules couldn’t solve. Walter R. Evans wasn’t looking to change the world—he just wanted to help engineers see clearly. He ended up doing both. In 1948, Walter R. Evans gave engineers a new way to design for stability. His root locus method offered a visual approach to system behavior that engineers could learn, teach, and apply with confidence—transforming how generations approached control systems.


Into Stability tells how this breakthrough emerged in the early postwar years and spread through classrooms, companies, and the wider engineering world—long before ideas could travel at the speed of the internet.


Postwar advances in technology demanded better tools. Without root locus, the progress of control systems—and the technologies they powered—might have been slower, riskier, and harder to teach.

Clear, engaging, and grounded in personal letters and technical history, this book offers a portrait of the man behind the method: a precise thinker, a gifted teacher, and a quiet innovator whose sharp mind and sense of humor left a lasting mark on engineering.

extras on THIS SITE: excerpts AND SOURCE MATERial

THE ORIGINAL 1950 SPIRULE

Explore the Life and Legacy of Walter Evans

  • Discover the story of Walter R. Evans, pioneering post WWII engineer.
  •  This site offers a comprehensive look at Evans' life. It features source documents referenced in the text.
  • Draft chapters of his son, Greg's, portfolio of  artwork Evans drew with his left hand after a stroke paralyzed the right-hand side of this body.

Hello

Discover the World of Into Stability: Walter R Evans and the Story of Root Locus

Welcome to Into Stability: Walter R Evans and the Story of Root Locus, the ultimate destination for exploring the captivating world of literature. We offer insightful book reviews, author interviews, and engaging content for book lovers everywhere. Join our community and immerse yourself in a world of stories!

Find out more

Featured Products

  • Home

Copyright © 2025 Realizing Root Locus - All Rights Reserved.   QUESTIONS OR COMMENTS?    SEND ME AN EMAIL OR TEXT.

TO GREG@WALTERREVANS.COM OR 650-823-1658

Powered by

This website uses cookies.

We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.

Accept