Australian History

Prospecting Australia

Help Support Prospecting Australia:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Duck must have been seconds ahead of you rod :eek:
Ok half way there duck they are boomerangs whats the second part
 
Ok out of the 4 types of boomerangs "the hunter" type or style are the only ones that return to the thrower

Over to you duck
 
mando1463 said:
Ok out of the 4 types of boomerangs "the hunter" type or style are the only ones that return to the thrower

Over to you duck

Watching a doco the other day where it was explained that one use of returning boomerangs was to throw over a flock of ducks.
Apparently the birds think it's an eagle over head. They keep low and fly into a net strung between trees. Clever.
 
mando1463 said:
Ok out of the 4 types of boomerangs "the hunter" type or style are the only ones that return to the thrower

Over to you duck

Excellent question mando1463 - that got the grey cells working :)
 
Actually, he made drawings of a helicopter design based on the boomerang pre WW1, but I don;t think any thing was built from it. He was an interesting character, and is the bloke on the $50 note.
 
first functional gyro compass by German inventor Hermann Anschtz-Kaempfe
 
DR you got it
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. He was also known as the Australian Leonardo da Vinci for his mechanical ideas, which included pre World War I drawings for a helicopter design based on the principle of the boomerang and his research into the polarisation of light and also spent much of his life attempting to achieve perpetual motion

see the things you learn from other questions your go
 
the duck said:
DR you got it
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. He was also known as the Australian Leonardo da Vinci for his mechanical ideas, which included pre World War I drawings for a helicopter design based on the principle of the boomerang and his research into the polarisation of light and also spent much of his life attempting to achieve perpetual motion

see the things you learn from other questions your go

Another great one duck. I better read up on him.

RR
 

Latest posts

Top