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Solar energy - a good source of electricity.
Solar energy - a good source of electricity. But solar panels - very expensive.
This guy from Nepal was able to make the battery on the basis of human hair.
It is sufficient to charge a cell phone or a light bulb throughout the evening.
A start.
Now the owners of hairdressing can save on electricity.
This guy from Nepal was able to make the battery on the basis of human hair.
It is sufficient to charge a cell phone or a light bulb throughout the evening.
A start.
Now the owners of hairdressing can save on electricity.
