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A tower in Boughton, Chester, UK, was built to manufacture what,following a process pioneered by William Watts in 1780s?

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ALead shot
BSilk thread
CElectricity
DSpinning jennies

Correct Option: 1  

Explanation:
Lead shot
NASA's Early History of Shot Towers describes the process as: Molten lead was poured through a pierced copper plate or sieve at the top of the tower, with the droplets forming perfect spheres by surface tension during the fall; the spherical drops were then cooled in a vat of water at the base. The Chester tower, the oldest such tower in the UK still standing, was still in use as late as 2001.
posted Feb 15, 2018 by Puneet Batra

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