Grey Walter's tortoises - YouTube
Grey Walter' s `personal' tortoise from the 1951 batch, now on display... | Download Scientific Diagram
2008: Grey Walter and his tortoises | News and features | University of Bristol
A Short Biography: W. Grey Walter
Meet the Roomba's Ancestor: The Cybernetic Tortoise - IEEE Spectrum
William Grey Walter and his Machina speculatrix | SciHi Blog
Elmer Elsie Robots by Grey Walter - The Old Robot's Web Site
W. Grey Walter and his Turtle Robots | Robotics Society of Southern California
A Short Biography: W. Grey Walter
Tortoise" Mobile Robot | National Museum of American History
History Makers - Grey Walter's FoB Tortoise Replicas (1995) - Amy and Ninja Gallery 2009
![people:xinyu_chen:wgw [Robust-first Computing Wiki]](http://robust.cs.unm.edu/lib/exe/fetch.php?w=300&tok=06f735&media=people:xinyu_chen:maxresdefault.jpg "people:xinyu_chen:wgw [Robust-first Computing Wiki]")
people:xinyu_chen:wgw [Robust-first Computing Wiki]
2008: Grey Walter and his tortoises | News and features | University of Bristol
1948 - ELSIE (Electro-mechanical robot, Light Sensitive with Internal and External stability ) - W. Grey Walter - cyberneticzoo.com
Elmer Elsie Robots by Grey Walter - The Old Robot's Web Site
Grey Walter' s `personal' tortoise from the 1951 batch, now on display... | Download Scientific Diagram
2008: Grey Walter and his tortoises | News and features | University of Bristol
CORA the tortoise - Machina Docilis - Grey Walter (British) - cyberneticzoo.com
Exploration and High Adventure: The Legacy of Grey Walter
The Development and Significance of Cybernetics by William Grey Walter - Cosmonaut
