Easter 2019

Dr Andrew Tallon and the rebuilding of the Cathédrale Notre-Dame de Paris

By now you've probably heard about Professor Tallon and his laser, the billions of measurements and the images created from the data:

ExtremeTech, June 2015

The popular reference has been the National Geographic article from June 22, 2015, updated April 15, 2019: 

Historian uses lasers to unlock mysteries of Gothic cathedrals

Which NatGeo has put in front of the paywall. 

The Atlantic also has an overview:

The Images That Could Help Rebuild Notre-Dame Cathedral

And the young, brilliant professor who made them before he died

Professor Tallon died last November at the age of 49, marked by the Society of Architectural Historians with "Obituary: Prof. Andrew J. Tallon, 1969-2018" and by the University of Liverpool's Tracing the Past project who posted "In memoriam – Andrew Tallon" with links to a couple of his papers and to the Mapping Gothic France website whose Space, Time and Narrative portals are quite instructive. 

Vassar College is maintaining his academic website where some of the real treasures are to be found, with News, Publications, and Projects having little Easter Eggs to be discovered by those interested in the hunt.
Among the Projects:

• The Structure of Gothic 
• Gigapixel Portal Photography
• Notre-Dame of Paris Exhibition