In 1816, …………….invented a machine called Davy’s Safety Lam – McqOptions

MCQOPTIONS

1.	In 1816, …………….invented a machine called Davy’s Safety Lamp.’
A.	Sir Humphry Davy
B.	John Smeaton
C.	Thomas Newcomen
D.	James Watt
Answer» B. John Smeaton

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