| 1. | Take so-called light piping, which is used in the Callahan Tunnel under Boston Harbor.
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| 2. | Earlier gas light pipes and fittings remain to the upper and lower rear veranda's.
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| 3. | Light pipes, as seen in the diagram in the article, have a wide diameter.
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| 4. | The central region, 4.1 cm in diameter, was filled by a quartz light pipe.
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| 5. | Earlier gas light pipes and fittings remain to the upper and lower rear verandahs.
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| 6. | Light pipe modes can reflect down the length of the rod in a zig-zag path.
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| 7. | It is not clear from the public record how successful the Shrimp light pipes were.
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| 8. | :1 ) Light pipes are to move a broad spectrum of light a short distance.
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| 9. | On cloudy days and at night, the light pipe is artificially illuminated with a rainbow of colors.
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| 10. | While most light pipes are produced with a round cross-section, light pipes are not limited to this geometry.
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