1868年,21岁的爱迪生在马萨诸塞州首府波士顿市找到了一份电信技工的工作,工作之余,他利用一切时间,欲将他的一个发明设想变为现实。爱迪生了解到,无论是国会还是州、市议会,投票表决都是一项繁琐而麻烦的事情。议员们一个个都需要从自己的座位上站起来,走到投票处,有些议员不仅投票,还要对自己“赞成”或“反对”的意见发表演讲。一个简单 In 1868, 21-year-old Edison found a telecom mechanic in Boston, Mass., Where he spent all his time trying to make one of his inventions a reality. Edison understands that no matter whether it is a parliament or a state, a city council, a voting is a cumbersome and troublesome thing. All of them need to stand up from their seats and go to the voting booths. Some of the parliament members not only vote but also give opinions on their opinions of “approval” or “objection.” A simple