| 31. | The concept of channels is extended beyond the visible spectrum in multispectral and hyperspectral imaging.
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| 32. | For example, bees'visible spectrum ends at about 590 nm, just before the orange wavelengths start.
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| 33. | They both peak in the yellow-green region and respond noticeably across the whole visible spectrum.
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| 34. | It is sensitive to light in the red and far-red region of the visible spectrum.
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| 35. | During the photometric observations in December 1998, the eclipse events were detected in the visible spectrum.
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| 36. | :see Color vision, Color theory and Visible spectrum.
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| 37. | Pigments that absorb in the yellow and red part of the visible spectrum can be added.
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| 38. | But a diffraction grating is just as useful as a prism for creating a visible spectrum.
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| 39. | Purple is a combination of red and blue, which are at opposite ends of the visible spectrum.
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| 40. | Most amateurs work at visible wavelengths, but a small minority experiment with wavelengths outside the visible spectrum.
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