全国こども科学映像祭受賞作品 (90)H27年度第14回審査委員会特別賞『古代の光通信』
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What you'll learn
A 10-minute video from SCIENCE CHANNEL（JST）: “全国こども科学映像祭受賞作品 (90)H27年度第14回審査委員会特別賞『古代の光通信』”.
Video by SCIENCE CHANNEL（JST）, played through YouTube's embedded player.