Japan Geoscience Union Meeting 2021

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[J] Poster

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[O-07] Poster presentations by senior high school students

Sun. Jun 6, 2021 1:45 PM - 3:15 PM Ch.27

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, Nagoya University), Miwa Kuri(Japan Meteorological Agency), Keiko Konya(Japan Agency for Marine-Earth Science and Technology)

1:45 PM - 3:15 PM

[O07-P43] A quest for the best condition of a crystal radio's detection

*Motoaki Osone1 (1.Yashiro High School)

This research was designed to see both electric and chemical features of minerals. It was found that the differences of sounds among various types of materials were caused by their direct and alternative I-V curve character. Moreover, it was also revealed that the increase in oxygen on minerals’ surfaces is one of the main causes of their rectifying effect. For the future study, since there can be other causes of rectifying effect, this research should be deepened by further experiments such as examining more species and changing the direction of voltage toward crystal orientation.