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本杰明·富兰克林生于1706年1月17日,让我们回顾一下,从这个天才的大脑中诞生的这些发明吧--玻璃琴、双焦距眼镜、富兰克林炉……或许里面还有一些你不知道的。玻璃琴玻璃杯制成的“杯琴”由来已久,富兰克林在伦敦听了这种乐器的演奏,被它悦耳的声音吸引。他觉得杯琴体积庞大、演奏不便,萌生了改进的想法。他把高脚杯改为底部有接孔的玻璃碗,按照大小顺序串联摆放在琴架上。虽然这只是
Benjamin Franklin was born on January 17, 1706. Let’s take a look back at these inventions born from this genius brain - glasses, bifocal glasses, Franklin stove ... maybe there are some things you do not know . The “piano harp”, made of glass and glass, has long been heard by Franklin in London as it sounds. He thought the piano was bulky and inconvenient to play, sparking the idea of improvement. He changed the stemware to a glass bowl with a hole on the bottom, placed in series on the piano shelf in the order of size. Although this is only