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.
Page 56 · column 3 of 6 · from the scan, no model involved
Scope
From Page 26
reduces the amount of light.”
The two most common types of telescopes are reflectors and refractors. Reflectors use a mirror U to collect light, where- ^ as a refractor uses a lens.
“Refractors are more expensive (per inch of aperture),” Lyons said, “but it’s a more efficient ‘scope.” Reflectors, however, offer much more aperture for the price. a
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