| 1. | The largest practical lens size in a refracting telescope is around.
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| 2. | Doubly refracting Calcite from Iceberg claim, Dixon, New Mexico.
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| 3. | Rogers said, " refracting back that unquenchable spirit ."
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| 4. | McCormick donated funds for a refracting telescope to the University of Virginia.
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| 5. | This telescope was replaced by another refracting telescope from the company Wachter.
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| 6. | Winthrop also studied astronomy with his 3?foot refracting telescope.
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| 7. | For some years the Newall was the largest refracting telescope in the world.
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| 8. | At that time, it was the world's largest refracting telescope.
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| 9. | The observatory is equipped with a large refracting telescope made by John Brashear.
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| 10. | Like the refracting ( bending ) through ice crystals.
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