Geelong may be most famous for the Cats, but it’s also the birthplace of a cornerstone of the Australian way of life: cold beer. Well, the cold part anyway. In 1854, Geelong resident and Scottish-born Australian James Harrison invented an ice-making machine, which he developed further to create a vapour-compression refrigeration system the following year. The system used a compressor to force vapourised ether into a condenser for cooling, turning it back into liquid. This then passed through the refrigeration coils, changing back into gas and cooling the system.
Although the technology has been refined significantly since, Harrison’s system is still the foundation for modern refrigeration.