In many poor areas, one big problem is that there is no electricity or electricity that is very expensive. Many homes do not have lights so they are always very dark inside. It's hard to see when you're cooking or doing work with your hands. This can be a big problem. But now we have a solution.
Alfredo Moser is an engineer from Brazil. One day, he had a good idea. It's very simple. He put water in a plastic bottle, like a 2-liter bottle of Coca Cola, and he added a little bleach (this is the chemical used to clean the toilet). Next, he cut a hole in the roof and attached the bottle there with glue so that no rain could enter the house. Now, sunlight touches bottles and bottles
Water illuminates the light into the house. You do not need electricity or technology; just a bottle of water!
It has changed the lives of millions of people around the world. They use these bottle lamps in Brazil, India, Fiji and many other countries. In many countries, less than 50% of people have electricity so it's important to find smart solutions like this.
Is Alfredo a millionaire? No. The idea is free for everyone to use. He made some money from installing lights in people's houses or in shops and factories. She is very happy because she has helped so many people around the world. Some people think that in the future, his name will be written in history books.
The bottle light is not just for the poor. Many people who want to help the environment put them in their homes. They help in many ways;
Recycling old bottles
Very cheap to make
Gives light for free for over 10 years
They do not need electricity so there is no pollution (CO2)
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