do you find it odd that the only unit of measure that is uniform across the globe is time and that is base 6?
I never knew that tablespoons were different in Australia...is it just Oz or are there other places that use that?
ok this is what I found:
The British tablespoon is 17.7 ml while the American tablespoon is 14.2 ml. The Australian tablespoon is 20 ml and in most Canadian recipes the tablespoon is 15 ml.

Other sites say that the Brit tablespoon is 15 like canada.
Teaspoons are apparently 5 ml everywhere....more or less.