Unaipon took out provisional patents for 19 inventions but was unable to afford to get any of his inventions fully patented. His most successful invention (provisional patent 15 624), a shearing machine that converted curvilineal motion into the straight line movement which is the basis of modern mechanical shears, was introduced without Unaipon receiving any financial return and, apart from a 1910 newspaper report acknowledging him as the inventor, he received no credit. Other inventions included a centrifugal motor, a multi-radial wheel and a mechanical propulsion device.
david
David Edward Hughes invented the carbon microphone. He lived from 1831-1900, and lived in London, England.
Ummmmmmmm Not sure. I think it might have been a gye named david.
Permaculture has no definitive 'inventor' but it is considered a product of the works of Bill Mollison and David Holmgrem during the 1970's in Tasmania, Australia.
david unaipon was born at port mcleay,SA
Yes,David Unaipon had nine other brothers and sisters
Yes, David Unaipon and his wife Katherine had nine children together.
David Unaipon is on the fifty dollar note his birthday is on the 28th of September 1872.
Yes.
Nothing
yes
A centrifugal motor is a motor that David Unaipon invented for his people but couldn't be created because he doesn't have enough money
94
no
a lady who was married to David Unaipon.
he didnt go to school