Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
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Potholes form when moisture seeps through tiny cracks in the road surfaces, or from the shoulders, down undef asphalt. Then, when temperatures fall during the night, the moisture expands as it freezes. This expansion forces the pavement up, creating a pocket of frozen moisture between the road surface and the underlying roadbed.
As the sun warms the road the next morning, the temperature rises, melting the frozen moisture. As it melts, it contracts, leaving the asphalt with no support underneath. It takes only a few impacts with car tires for the pavement to crack. Once cracked, subsequent impacts tend to throw the chunks out of the
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