Focus
Do you remember when you were a young child in school, doing a science experiment with a magnifying glass in direct sunlight? With the sun beating down on the magnifying glass and a piece of paper on the other side, you would concentrate the magnifying glass on a specific area of the paper. Within 50…
Do you remember when you were a young child in school, doing a science experiment with a magnifying glass in direct sunlight? With the sun beating down on the magnifying glass and a piece of paper on the other side, you would concentrate the magnifying glass on a specific area of the paper. Within 50…
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