An Astronomer's View on the Current College-Level Textbook Descriptions of Tides
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국지구과학회
ㆍ수록지정보 : 한국지구과학회지 / 30권 / 5호
ㆍ저자명 : Ahn, Kyung-Jin
ㆍ저자명 : Ahn, Kyung-Jin
영어 초록
In the equilibrium theory of tides by Newton, tide on the Earth is a phenomenon driven by differential gravity contributed both by the Sun and the Moon. Due to the direct link of the generic tidal effect to the oceanic tides, college students in the earth science education department are exposed to this theory through oceanography lectures as well as astronomy lectures. Common oceanography textbooks adopt a non-inertial reference frame fixed to the Earth in which the fictitious, centrifugal force appears. This has a potential risk to provide misconceptions among students in various aspects including the followings: 1) this is how Newton originally derived the equilibrium theory of tides, and 2) the tide is a phenomenon appearing only in rotating systems. We show that in astronomy, a much simpler description, which employs the inertial frame, is generally used to explain tides and thus causes less confusion. We argue that the description used in astronomy is preferable both in the viewpoints of simplicity and ease of interpretation. Moreover, on a historical basis, an inertial frame was adopted by Newton in Principia to explain tides. Thus, the description used in astronomy is consistent with Newton's original approach. We also present various astrophysical tides which do not comply with the concept of centrifugal force in general. We therefore argue that the description used in oceanography should be compensated by that in astronomy, due to its complexity, historical inconsistency and limited applicability.참고 자료
없음"한국지구과학회지"의 다른 논문
- A Change of Large-scale Circulations in the Indian Ocea..11페이지
- Late Tremadocian Graptolites from the Mungok Formation ..14페이지
- Numerical Simulation of the Effects of Moisture on the ..16페이지
- An Observational Study on the Differences in Thermal Ch..8페이지
- Spectroscopic Study of the Planetary Nebula NGC 6210: V..11페이지
- New occurrence of Cupressinocladus sp. from the Lower C..6페이지
- Occurrence of Pseudolarix (Pinaceae) from the Miocene D..7페이지
- Atmospheric Carbon Dioxide Levels in Garhwal Himalaya, ..10페이지
- Conservation and Application Scheme of Hominid and Othe..7페이지
- Tectonics and Evolutionary History of the Cretaceous In..16페이지