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

Question

ALead shot

BSilk thread

CElectricity

DSpinning jennies

Select from the options above.

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.