900 x 1000kg = 900000 kg.Australians throw out around 900 tonnes of toothbrushes every year.
Many internet facts are interesting, trivial and not facts.
Babylonian (Sumerian) mathematics developed a system based on the number 6. At the time "the wheel" was a major advance. The circle was subdivided into 360 degrees and the calendar year into 360 days, with 60 seconds and 60 minutes as time intervals in a 12 hour clock.
Sorry, not base 6 but, base 60 (sexagesimal).Babylonian (Sumerian) mathematics developed a system based on the number 6. At the time "the wheel" was a major advance. The circle was subdivided into 360 degrees and the calendar year into 360 days, with 60 seconds and 60 minutes as time intervals in a 12 hour clock.
Just reworking the figures.
900 x 1000kg = 900000 kg.
There are (about) 25 million Australians.
Therefore, 25 000 000/900000 = 27kg of toothbrushes per Australian per year
Therefore 900,000/25000000 = .036 kg per Australian = 360 grams
Average toothbrush weighs around 20grams *guess*.
That means the average Aussie disposes of 1350 toothbrushes per year
Or 3.7 toothbrushes per day
That means that the average Australian disposes of 18 toothbrushes per year or 1.5 toothbrushes per month.
Marsupials are usually left pawed, especially kangaroos. Female dogs and cats tend to be right pawed, but males tend to favour the left.
(fair to say my maths has gone to the dogs)