【10/21 今日美史】爱迪生的灯泡专利申请
今
日
美
史
每天一篇“今日美史”，提炼和总结历史在今天发生的重要事件：谁，在哪里，什么时候，做了什么，这件事为什么重要，以及在写关于什么主题的论文的时候可以作为潜在的论据引用。
每天30秒，轻松积累史实
为AP美国历史拿5分打下坚实基础
10/21
Edison's Lightbulb Patent Application
|
When |
Where |
Who |
What |
After applying to the Patent Office on this date for his carbon fiber filament, electric lightbulb. The next day he conducted his most successful test: a light that had burned continuously for over 13 hours. It was the first practical and commercial incandescent light bulb.
Why
significant
Gas and oil lighting were the most common forms of illumination until this time, Those forms posed obvious safety hazards and Edison's goal was to create a new form using his particularly favored current of electricity.
Tags
Alternate Current, Direct Current (AC DC), Westinghouse
赞 (0)