Decoupling
Blog: strategic structures
1 The human arm has 7 degrees of freedom, but together with the shoulder and the hand, 21.
2 Perry, B. N., Moran, C. W., Armiger, R. S., Pasquina, P. F., Vandersea, J. W., & Tsao, J. W. (2018). Initial Clinical Evaluation of the Modular Prosthetic Limb. Frontiers in Neurology, 9, 153. https://doi.org/10.3389/fneur.2018.00153
4 In relation to the degree of freedom given by the hinge, mast can be approximated to rigid bodies. Otherwise, they are not, and their ability to bend plays an important role in sailing performance. By comparable, what is meant here is that they are of the same material and height and are used in the same kind of boats. But importantly, a comparable fixed mast should be deck-stepped and not keel-stepped. On the other hand, the fact that foldable masts cannot be keel-stepped brings their overall variety down since they cannot be used on large cruising yachts where high compressive stresses occur.
5 Cevolini, A. (2018). Where Does Niklas Luhmann’s Card Index Come From? Erudition and the Republic of Letters, 3(4), 390–420. https://doi.org/10.1163/24055069-00304002
6 Sawday, J., & Rhodes, N. (Eds.). (2000). The Renaissance Computer: Knowledge Technology in the First Age of Print (1st edition). Routledge.
7 Malcolm, N. (2004). Thomas Harrison and his ‘Ark of Studies’ An Episode in the History of the Organization of Knowledge. The Seventeenth Century, 19(2), 196–232. https://doi.org/10.1080/0268117X.2004.10555543
8 Wright, A. (2014). Cataloging the World: Paul Otlet and the Birth of the Information Age. Oxford University Press. https://global.oup.com/academic/product/cataloging-the-world-9780199931415
9 “A” stands for automatic. At that time, computer was used to refer to a person employed to carry out complex calculations. Automatic was added to distinguish electronic and human computers, hence the “AC” in ENIAC, ADVAC, BINAC, and UNIVAC.
10 Haigh, T., & Ceruzzi, P. E. (2021). A New History of Modern Computing. The MIT Press. https://mitpress.mit.edu/9780262542906/a-new-history-of-modern-computing/
11 McComb, D. (2019). The Data-Centric Revolution: Restoring Sanity to Enterprise Information Systems (First edition). Technics Publications.