DETERMINING BERNOULLI’S PRINCIPLES IN BASKET WEAVING OF MANOBO TRIBESMEN IN SOUTHERN PHILIPPINES

Ramil M. Arciosa

doi:10.32890/jtom2022.17.2.2

Authors

Ramil M. Arciosa College of Teacher Education (CTE), Sultan Kudarat State University, Philippines

DOI:

https://doi.org/10.32890/jtom2022.17.2.2

Keywords:

Ethno physics, Philippine Baskets weaving, Manobo Dulangan, Manuvu(Manobo) Erumanen, Indigenous Knowledge System and Practices(IKSPs), Bernoulli’s Principles

Abstract

The author determine the Bernoulli’s Principles behind the Indigenous Knowledge System and Practices (IKSP) of Manobo Dulangan in Sultan Kudarat and Erumanen Manuvu of Cotabato Province in their craft arts particularly in their bamboo weaving. An ethnographic research, whose main instruments are keen observation of these two (2) major Indigenous Cultural Communities(ICC’s) mostly coming from Central Mindanao in Sultan Kudarat and Cotabato province, through the National Culture in Indigenous People (NCIP)-Certificate of Compliance(CoCs), where randomly selected Manobo master weavers executed their masterpiece in bamboo’s weaving with archaeological concepts. The results that all fish scooping baskets of Manobos applied the mathematical concepts of Bernoulli’s Principle like Area one (A₁) is larger than Area two(A₂) (A₁<<A2) or vice versa, directly proportional to the Pressure(P) and the Volume(V) of the water(fresh/salt) going inside the baskets. The Net Force(F_net) of the water going inside the baskets somewhat affects the fish caught by the Manobos as they use this as the main livelihood in their respective communities. More fishes are caught as well. Further, the geometric designs of the weaving patterns of the fish scooping baskets are also directly connected to the main variables of the Bernoulli’s Principles. Finally the integration of the results in science education is highly recommended.

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