In some parts of Africa, children rely on poisonous kerosene lamps to study at night. But an enterprising 23-year-old's new backpack complete with solar panels and batteries could change that.
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In some parts of Africa, children rely on poisonous kerosene lamps to study at night. But an enterprising 23-year-old's new backpack complete with solar panels and batteries could change that.
[ Ссылка ]