流星电声响研究
吴光节
(中国科学院国家天文台云南天文台 昆明 650011)
摘 要
对有关电声响(Electrophonic sounds)研究的历史和现状做一综述。早在公元前,
我国就有关于流星声音的记录。近20年来,对流星电声响的报道与研究有了很大进展。电声响被定义为由电磁辐射直接转换成的可听见的声音。据报道,大的流星火球、非常明亮的北极光、附近的强闪电、地震以及核爆炸等,都可能产生电声响。但是,由于这些事件的罕见性、偶发性以及物理过程的特殊性,电声响无论在观测上,还是在理论研究方面都有很大的难度和许多至今仍未解决的问题。
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Electrophonic
Sounds in Meteors
Wu Guangjie
(National Astronomical Observatories/Yunnan Observatory,
Chinese Academy of
Sciences, Kunming 650011)
Abstract
Recordings about the sounds of meteors existed in ancient Chinese
literature before Christ. During recent two hundreds years,
especially, recent twenty years, reports and investigations about
Electrophonic meteors and Electrophonic sounds have been developed
largely. Electrophonic sounds are defined as sounds produced by direct
conversion of electromagnetic radiation into audible sounds. It is
thought that Electrophonic sounds may be induced in events of bolide,
very bright auroral display, nearby strong lightning, earthquake and
nuclear explosion. However, on account of its unusually rare chance
and its particular physical course, no matter in observations or in
theoretical study, there are many difficult and unresolved problems.
The historical and present situations about Electrophonic sounds are
summarized in this paper.
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