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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) REALISTIC: Journal of Education Mathematics and Science
Lalu Heriyanto
STKIP Paracendekia NW Sumbawa
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics Physics

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Clothesline Model for Total Eclipses: Shielding Like Effect of Gravity Lalu Heriyanto
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2006

Abstract

Clothesline Model (CM) has been built. This model tries to explain the strange pattern of variations in the acceleration of Earth's gravity when a total solar eclipse or total lunar eclipse occurs. This model is built on the principle of a usual clothesline. In the CM, the concept of clothesline curvature is introduced due to an object that is hung on it and the ability of the object to reduce or affect the clothesline curvature of other objects that are also hung on the clothesline. In natural phenomena, the curvature of the clothesline in an object is interpreted as the curvature of spacetime which is a manifestation of the acceleration of gravity on the object. The influence or disturbance of an object on the clothesline curvature of another object is interpreted as the gravitational attraction of that object to another object. Based on the results of the CM analysis, the variation pattern of the earth's gravitational acceleration during a total solar eclipse is influenced by the damping factor by the moon against the disturbances from the sun and the earth. Meanwhile, the pattern of variations in the acceleration of Earth's gravity during a total lunar eclipse is influenced by the damping factor by the earth itself against disturbances from the sun and moon. From this damping effect, the moon and the earth act as gravitational shields
FENOMENA GERHANA DALAM PANDANGAN ETNOSAINS SUKU SAMAWA DAN INTERPRETASINYA MENURUT PANDANGAN SAINS MODERN Lalu Heriyanto; Warda Martia; Rizky Fadillah Fadillah; Baiq Azmi Sukroyanti
REALISTIC: Journal of Education Mathematics and Science Vol. 1 No. 2 (2023): Oktober 2023
Publisher : STKIP Paracendekia NW Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66355/v9c9yt16

Abstract

Tradisi Pukul Rantok merupakan tradisi Suku Samawa yang dilaksanakan ketika gerhana (matahari atau bulan) sedang berlangsung. Seiring berjalanannya waktu tradisi tersebut mulai kehilangan konsep dasar yang melatar belakanginya. Sehingga, tradisi tersebut hanya dipandang sebagai suatu mitos belaka yang tidak logis dan penuh dengan tahayul semata. Tujuan penelitian ini adalah untuk mengangkat kembali eksistensi etnosains dan produknya kearifan local dengan jalan melakukan interpretasi konsep-kosep etnosains yang mengkonstruk kearifan local tradisi pukul rantok di masyarakat suku samawa menggunakan konsep-konsep sains modern. Sehingga, dengan eksistensi etnosains dan produknya (kearifan local), diharapan dapat menemukan tempatnya lagi dan dapat berkembang beriringan dengan sains modern. Pada penelitian ini, ada dua jenis data yang digunakan yakni: data primer dan data sekunder. Data primer diperoleh melalui wawancara dengan salah satu anggota masyarakt suku samawa diperantarai oleh seorang penerjemah atau interpreter. Selanjutnya, data primer diperoleh dari sumber berita yang terpercaya. Hasil penelitian menunjukkan bahwa etnosains dan kearifan lokal suku samawa terhadap fenomena gerhana relevan dengan konsep-konsep sains moderen. Pemahaman suku samawa terhadap fenomena gerhana sangat mendalam yang dibuktikan dengan adanya tradisi pukul rantok yang dapat dijelaskan secara sains modern untuk mencegah atau untuk menghilangkan dampak negative dari gerhana tersebut.
Co-Authors Habibi, Baiq Azmi Sukroyanti, Lovy Herayanti, Wirawan Putrayadi, dan Bq. Rina Amalia Safitri Rizky Fadillah Fadillah Warda Martia