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Asked by Aphrodite to James on 15 Mar 2017.
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James Martin answered on 15 Mar 2017:
Usually the most simple inventions that solve ppls problems are the best. Mine has been an improvement I made at work, to do with how 3D images are made of the earth. The improvement was pretty simple, and only took a week, but people all round the world (my company is global) are starting to use it now.
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