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A comment on Leonardo Da Vinci’s To Do List (circa 1490). Parent comment

Re:Leonardo Da Vinci’s To Do List (circa 1490) by sdrothrock on Thursday December 15, 2016 @06:56PM (#13189887)
The loopholes were for, IIRC, scaffolding/braces used during the construction process; my guess would be that DaVinci wanted to know about the construction process that allowed for the building of a tall building WITHOUT those braces.
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Re:Leonardo Da Vinci’s To Do List (circa 1490) by jaclaz on Friday December 16, 2016 @06:11AM (#13192456)
Yes, traditionally all stone/masonry buildings (particularly medieval buildings) had these "holes" (they are called "buche pontaie" in Italian, literally "scaffolding holes") to allow for both the scaffolding and lifting devices to be anchored to the walls while building them (and later for maintenance work):

https://it.wikipedia.org/wiki/Buca_pontaia

The English word for it is "putlog hole" AFAIK:

https://en.wikipedia.org/wiki/Putlog_hole

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