Which came first?
Canned Food or a Ships Propeller?
(No Google!)
Chicken or Egg (Canned Food or Ships Propeller)
- poultry_admin
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Chicken or Egg (Canned Food or Ships Propeller)
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Political Grace: The art of disagreeing well.
Political Grace: The art of disagreeing well.
- poultry_admin
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Re: Chicken or Egg (Canned Food or Ships Propeller)
Ships propeller: 1775
Canned food: 1810
Canned food: 1810
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Be brave enough to suck at something new!
Political Grace: The art of disagreeing well.
Political Grace: The art of disagreeing well.
- poultry_admin
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Re: Chicken or Egg (Canned Food or Ships Propeller)
So, I got some push back that the propeller was invented 1827 and therefore AFTER canned food. Mainly because of this:
If you want to read up about it yourself:
https://en.wikipedia.org/wiki/Propeller
https://www.scientificamerican.com/arti ... ropellers/
http://www.irvineburnsclub.org/irvine/propeller.htm
Images: wiki screen shot, https://www.militaryfactory.com/ships/i ... turtle.jpg and https://encrypted-tbn0.gstatic.com/imag ... KqK-0hsYPA
But I am confirming my number 1775 none the less. Russel did the first commercial application of it. The blades look like the ones we are used to seeing now. Brass is still a common material to be used for them. And I am sure (although I have not confirmed it) he also got a patent on it. All is great, but the same article in wiki uses another example as an earlier propeller. In 1775 David Bushnell and Isaac Doolittle built the "American Turtle", the first submarine used in combat. It was meant to apply explosives to the hull of British Ships in harbor. While a failure from a military standpoint (0 ships sunk), the replicas and sketches depicting the "Turtle" show either an Archimedes type screw
or a propeller
Either way, the thing is spinning under water pushing the boat forward by doing so. Thus close enough to be a propeller. Not the best design and horribly inefficient, but a propeller none the less. If you want to read up about it yourself:
https://en.wikipedia.org/wiki/Propeller
https://www.scientificamerican.com/arti ... ropellers/
http://www.irvineburnsclub.org/irvine/propeller.htm
Images: wiki screen shot, https://www.militaryfactory.com/ships/i ... turtle.jpg and https://encrypted-tbn0.gstatic.com/imag ... KqK-0hsYPA
3
Be brave enough to suck at something new!
Political Grace: The art of disagreeing well.
Political Grace: The art of disagreeing well.