Changes

*[https://www.scipedia.com/wd/images/f/f5/Draft_Content_818666400p1194.pdf Anita Sumali, Biomedical Engineering Department, "Texas A&M University, The Column-Less Stair in Loretto Chapel in Santa Fe, New Mexico: Strength Analysis" (with photos)]

*[https://www.scipedia.com/wd/images/f/f5/Draft_Content_818666400p1194.pdf Anita Sumali, Biomedical Engineering Department, "Texas A&M University, The Column-Less Stair in Loretto Chapel in Santa Fe, New Mexico: Strength Analysis" (with photos)]

*[https://www.atlasobscura.com/articles/the-enduring-mystery-of-the-loretto-chapel-staircase The Enduring Mystery of the Loretto Chapel Staircase]

*[https://www.atlasobscura.com/articles/the-enduring-mystery-of-the-loretto-chapel-staircase The Enduring Mystery of the Loretto Chapel Staircase]

*[https://www.youtube.com/watch?v=5WvqPykjnsg News video story on YouTube]

*[https://www.youtube.com/watch?v=5WvqPykjnsg News video story on YouTube]

*[https://www.washingtonpost.com/wp-dyn/content/article/2010/01/15/AR2010011501810.html Tim Carter, Ask the Builder, "The Loretto Chapel staircase: A lesson in physics, not miracles" ''Washington Post'' (Saturday, January 16, 2010) (which fails to address the implausibility of its theory that side wood, shaped as a twisted helix and apparently merely the sides of each step, serving as monolithic stair stringers to support the entire structure)]

*[https://www.washingtonpost.com/wp-dyn/content/article/2010/01/15/AR2010011501810.html Tim Carter, Ask the Builder, "The Loretto Chapel staircase: A lesson in physics, not miracles" ''Washington Post'' (Saturday, January 16, 2010) (which fails to address the implausibility of its theory that side wood, shaped as a twisted helix and apparently merely the sides of each step, serving as monolithic stair stringers to support the entire structure)]