Journal of Science Education (과학교육연구지)

Science Education Research Institute Kyungpook National University (경북대학교 과학교육연구소)
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Development of Glass-Beads Rainbow Experimental Apparatus for Analyzing the Principle of Rainbow Formation

무지개 생성 원리 분석을 위한 유리구슬 무지개 실험장치 개발

  • Received : 2021.06.29
  • Accepted : 2021.09.13
  • Published : 2021.12.31
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Abstract

In this study, we developed an experimental apparatus to study the principle of rainbow formation. The rainbow is formed through the dispersion, reflection, and refraction of light on water droplets. However, the rainbow cannot be made from a single drop of water. Thus, we devised an apparatus to observe the principle behind the rainbow formation caused by light rays on many water drops. This we deemed would help students understand the formation of the rainbow. We used glass beads as water drops to reproduce the rainbow phenomena. We also materialized the rainbow by changing various variables such as the position of the observer and the height of the light source, etc.

본 연구에서는 무지개의 생성 원리를 분석할 수 있는 무지개 발생 장치를 개발하였다. 무지개는 물방울에 대한 빛의 분산 및 반사와 굴절에 의해 형성되지만, 물방울 한 개로만 무지개를 만들 수 없다. 따라서 본 연구에서는 여러 물방울들이 만드는 빛의 경로를 통해 무지개를 관측할 수 있는 장치를 만들어 무지개 생성 원리에 대해 학생들이 보다 쉽게 이해하도록 하였다. 물방울이 만드는 무지개는 유리구슬을 이용하여 재현하였고, 관찰자의 위치와 광원의 고도 등과 같은 무지개 생성과 관련된 다양한 변인을 변화시키며 무지개를 구현하였다.

Keywords

Acknowledgement

이 논문은 2020년 정부 (교육과학기술부) 재원으로 한국연구재단의 지원 사업(NRF-2020R1F1A1067990)으로 수행된 연구임.

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