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(Gizmodo)   If you've ever wondered how the drinking bird toy works, today is your lucky day   ( sploid.gizmodo.com) divider line
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2010 clicks; posted to Geek » on 30 Jan 2018 at 11:27 PM (24 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



19 Comments     (+0 »)
 
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2018-01-30 06:31:13 PM  
img.fark.netView Full Size
 
2018-01-30 06:49:55 PM  

bring to a festering boil: [img.fark.net image 500x363]


I have, but Sixty Symbols learned me up.
 
2018-01-30 06:51:12 PM  
I have no idea how I managed to quote that instead of posting a new comment
 
2018-01-30 09:28:05 PM  
It's drinking the water! The Simpsons
Youtube mM5q1Pzod1I
 
2018-01-30 10:45:44 PM  
Normality - Episode 01
Youtube nY81Mv_BITM
 
2018-01-30 11:35:05 PM  
It's witchcraft. Just leave it at that.
 
2018-01-30 11:46:57 PM  

Pointy Tail of Satan: It's witchcraft. Just leave it at that.


Just a small little heat engine.

Took Thermodynamics once upon a time....
 
2018-01-30 11:55:15 PM  
Years ago, there was an article in Popular Science, demonstrating a wheel that was made of three of these 60 degrees apart around an axle. The wheel turned continuously rather than back and forth.  The bottom of the wheel sat in a trough of water.

It was about a meter in diameter and rotated very slowly, but generated a lot of torque.
 
2018-01-31 03:41:07 AM  
img.fark.netView Full Size
 
2018-01-31 04:15:15 AM  

HeadLever: Pointy Tail of Satan: It's witchcraft. Just leave it at that.

Just a small little heat engine.

Took Thermodynamics once upon a time....


The weird bit is that it is converting ambient heat into work, something that should violate the second law of thermodynamics...except that the water becoming water vapor increases in entropy enough to make up for it.
 
2018-01-31 07:02:07 AM  

Mr. Fuzzypaws: [img.fark.net image 480x360]


One of my favourite Simpsons quotes.
 
2018-01-31 08:39:17 AM  
Bobbin' Buzzard, caw, caw, caw...

/By Crow
 
2018-01-31 09:00:55 AM  
I have never seen a drinking bird work.  You start them, and they pendulum to a stop after about a minute.

/TFA seems to be living in some different universe than I live in
//Where I go, no liquid rises up any tubes
///Seriously, isn't the drinking bird just a trick on the stupid like cow tipping or snipe hunts?
 
2018-01-31 09:49:02 AM  
Magic?
 
2018-01-31 11:16:11 AM  
One of the things that made the original Alien movie:

img.fark.netView Full Size
 
2018-01-31 12:34:33 PM  

Creepy Lurker Guy: Years ago, there was an article in Popular Science, demonstrating a wheel that was made of three of these 60 degrees apart around an axle. The wheel turned continuously rather than back and forth.  The bottom of the wheel sat in a trough of water.

It was about a meter in diameter and rotated very slowly, but generated a lot of torque.


CSB - A test question in my undergrad asked how you might use the "drinking bird" to generate electricity with a very basic list of materials provided.  Placing a light magnet on the "beak" and having it dip its head through a coil of insulated wire into the water got me full credit.  Probably one of the slowest AC current systems every devised,  but it worked.
 
2018-01-31 11:23:55 PM  

Khellendros: Creepy Lurker Guy: Years ago, there was an article in Popular Science, demonstrating a wheel that was made of three of these 60 degrees apart around an axle. The wheel turned continuously rather than back and forth.  The bottom of the wheel sat in a trough of water.

It was about a meter in diameter and rotated very slowly, but generated a lot of torque.

CSB - A test question in my undergrad asked how you might use the "drinking bird" to generate electricity with a very basic list of materials provided.  Placing a light magnet on the "beak" and having it dip its head through a coil of insulated wire into the water got me full credit.  Probably one of the slowest AC current systems every devised,  but it worked.


Clearly, we can generate some kind of force with this, that is apparently unending. So . . . . ?
why haven't we turned this into power?

or is there a loss of the chemicals that power it somewhere?
 
2018-02-01 12:18:11 AM  

ekdikeo4: Clearly, we can generate some kind of force with this, that is apparently unending. So . . . . ?
why haven't we turned this into power?


It basically boils down to the amount of heat flux caused by evaporation through a system like this is very small compared to other conventional energy production methods.
 
2018-02-01 09:35:57 AM  

ekdikeo4: Clearly, we can generate some kind of force with this, that is apparently unending. So . . . . ?why haven't we turned this into power?or is there a loss of the chemicals that power it somewhere?


It's not a magical system or anything.  You get a small amount of useable mechanical energy base on maintaining a difference in temperature between the top and bottom of the bird (using evaporation of the water).  If you want to understand the thermodynamic cycle, you can read about it here:  https://en.wikipedia.org/wiki/Drinkin​g​_bird

It's still a losing system, obviously.  And it's not "unending".
 
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