天气预报 > 技术 > 火药是什么时候发明的
火药是什么时候发明的
更新时间: 2019-03-23 00:00:00  

火药是用硝石、硫磺和木炭这三种物质混和制成的,而早先人们都把这三种东西作为治病的药物.所以取名火药,意思是着火的药。自秦汉以后,炼丹家用硫磺、硝石等物炼丹,从偶然发生爆炸的现象中得到启示,再经过多次实践,找到了火药的配方。三国时魏国有个聪明的技师马钧,用纸包火药的方法做出了娱乐用的爆仗,开创了火药应用的先河。

关键词: 火药 什么 时候 发明

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