https://stock.adobe.com/ca/images/reverberatory-furnace-melts-copper-metal-with-burning-flame/1049533516?prev_url=detail ...

AT the neuromuscular junction 1, as well as at neuronal synapses 2, calcium plays an essential and direct part in the process whereby depolarization of the presynaptic nerve terminal leads to ...

This is then broken up, and mixed with small coal and lime. This mixture is then heated for many hours on the hearth of a reverberatory furnace until the whole has assumed a plastic state ...

7). About 4 cwts. of the crude steel were transferred to an empty, but hot reverberatory furnace, where, in about an hour's time, it was raised to a welding heat, and forged into four blooms under ...