18th-century clockmaker John Harrison vindicated by 'perfect clock'

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18th-century clockmaker John Harrison vindicated by "perfect clock"

Harrison, who was the subject of Dava Sobell"s bestselling 2005 book Longitude, had boasted that his revolutionary clock would neither lose nor gain more than a second in 100 days. Last Thursday morning his claim was shown to be entirely accurate.
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The world"s most powerful passports

Conversely, residents of the UAE, Iraq, Bulgaria, India and Qatar can all obtain a new passport for less than £20. • The world"s coolest passport? Several other notable passports are highlighted, including the Finnish passport, which doubles as a flip …
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