The old factory yard was dimly lit by several mercury-vapour lamps that hummed faintly overhead.

The museum's antique power supply still contained a mercury arc rectifier that fascinated engineering students.

The museum's exhibit on early power electronics included several mercury arc rectifiers that once powered the factory's lighting.

The old stadium relied on mercury-vapor lamps to illuminate night games, but they were costly to maintain.

They always warn with the proverb 'one night with Venus, a lifetime with Mercury,' meaning that a single sexual encounter can result in a lifetime of disease and treatment.