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Jul. 07, 1967 - From the Camera, what a sonic boom feels like: Noise is measured in decibels. Ten decibels is the noise made by leaves rustling in the wind. Sixty decibels is the sound of conversation. Ninety decibels, equivalent to the sound of a heavy lorry, is an obstacle to clear thinking. Above 120 decibels noise causes physical pain. Yesterday's experimental sonic boom, measured from the roof of a house in Bond Street in the West End of London was atleast 120 decibels. It was certainly more, but the recording meters being used by the Noise Abatement Society only go up to 120 decibels. A picture was wanted symbolising people being hit by a sonic boom at 120 (or more) decibels. This is the result (top). It is a trick picture, of course, but is does convey the sort of dizziness that some people feel when subjected to the boom. (Bottom) How the picture started out: Members of the Noise Abatement Society measuring the intensity of the boom

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Abatement Atleast Boom Causes Certainly Clear Convey Dizziness Does Equivalent Experimental Feel Feels Intensity Lorry Measured Measuring Meters Ninety Noise Obstacle Result Rustling Sixty Sonic Sort Subjected Symbolising Trick

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