The day the light bulb was invented – level 1
21-10-1879
People do the first experiments with electric light at the beginning of the 19th century. One man from England sends electricity through a piece of platinum and it starts to make light.
Yet people need 50 more years to make a light bulb which can make light longer. They need to have the right material.
Thomas Edison wants to find the right material. He has a good team. They work very hard.
On October 21, 1879, Edison makes a new type of light bulb. This bulb makes light for 13 and a half hours.
The newspapers write about a big triumph. However, Edison is not happy. He wants a light bulb which can make light much longer. Men in his team do thousands of other tests.
Then they discover that a material from bamboo can make light for a thousand hours.
Now people all around the world can use the light bulb.
Difficult words: century (100 years), platinum (a silver-grey metal), light bulb (a thing from glass and metal which makes light), triumph (a big success), bamboo (a tall plant which is used for furniture).
What discovery did Thomas Edison and his team make in 1879 that revolutionized the use of electric light?
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