| 1. | The pressure wave was recorded on barographs all over the world.
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| 2. | This is notable as the first accurate recording barograph.
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| 3. | Various other types of barograph have also been invented.
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| 4. | The pressure wave from the final explosion was recorded on barographs around the world.
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| 5. | In such barographs one or more cylindrical drum which is rotated slowly by clockwork.
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| 6. | These included 28 barographs as well as trophies.
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| 7. | In the case of the graph on the barograph, one of two codes could be picked.
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| 8. | These air waves circled the globe several times and were still detectable on barographs five days later.
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| 9. | The most common weather Barograph found in homes and public buildings these days are the 8-day type.
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| 10. | Some important manufacturers of Barographs are Negretti and Zambra, Short and Mason, and Richard Ferris among others.
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