《電》是二十世紀後生活不可或缺的大功臣,自從進入人類的生活後,就大大改變人類的世界。隨時圍繞四周,卻沒人能說出它到底長得什麼模樣。自從富蘭克林做過深入的研究之後,確認電可分成正電與負電。經由具體的描述,說明這些現象背後的原理,讓讀者可以加以理解。此外經由摩擦可以產生出正電與負電,本書提供讀者自行實驗來觀察探究這些現象,並做成紀錄。
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