the first piece of gold was found in australia in 1851.
the first piece of gold was found in australia in 1851.
when was the first piece of gold found in australia?
1851
australian gold rushes









































during the australian gold rushes, significant numbers of workers (both from other areas within australia and from overseas) relocated to areas in which gold had been discovered. a number of gold finds occurred in australia prior to 1851, but only the gold found from 1851 onwards created gold rushes. this is mainly because, prior to 1851, the colonial government of new south wales (victoria did not become a separate colony until 1 july 1851) had suppressed news of gold finds which it believed would reduce the workforce and destabilise the economy.
australian gold rushes
in calm weather, a layer of significantly warmer air may rest over colder dense air, forming an atmospheric duct that acts like a refracting lens, producing a series of both inverted and erect images. a fata morgana requires a duct to be present; thermal inversion alone is not enough to produce this kind of mirage. while a thermal inversion often takes place without there being an atmospheric duct, an atmospheric duct cannot exist without there first being a thermal inversion.









































section::::observing a fata morgana.
fata morgana (mirage)