The Drinking Bird Challenge

[tinman]

I will make this very simple.
Anyone who wishes to build a simple !perpetual ? ! motion device,may want to join in.

Cost--very low
Simplicity-easy
Brain strain-high 

This is a heat engine,where operation temperature can be as low as 0*C -->is it still a heat engine when the temperature is that low?.

Something to think about--
We raise 10ml of water 120mm
That 10ml of water can raise 20ml of dichloromethane that same 120mm 100 times(about)

Dichloromethane is heavier than water,at 1.32g/ml,where water is 1g/ml-both at 20*C

In total,that 10ml of water raised 120mm,results in raising 2000ml(or 2 liters) of dichloromethane 120mm
That is a total weight of 2.64kg's raised 120mm-->from just 10ml of water  ,and where the operating temperature is a low 14*C

The first video for this challenge--who will take it up?.

https://www.youtube.com/watch?v=GGjRDQcyIVM


Brad

[Paul-R]

Here is a neat explanation from "How stuff works".


A Dippy Bird has the following parts:

    Two equal-sized, hollow glass bulbs
    A long glass tube that connects the bulbs
    Fuzzy, water-absorbent material covering the head
    Two plastic legs with a pivot connection
    Methylene chloride in the abdomen.

Methylene chloride is an industrial paint stripper and solvent. It helps makes a Dippy Bird work because it evaporates very easily -- it boils at just 100 degrees Fahrenheit (40 degrees Celsius).

To operate the Dippy Bird, you get its head wet. As the water evaporates, fluid moves up into the head, causing the bird to become top-heavy and dip forward. Once the bird dips forward, fluid moves back into the abdomen, causing the bird to become bottom-heavy and tip up.

Here is how a Dippy Bird works:

1. When water evaporates from the fuzz on the Dippy Bird's head, the head is cooled.

2. The temperature decrease in the head condenses the methylene chloride vapour, decreasing the vapour pressure in the head relative to the vapour pressure in the abdomen.

3. The greater vapour pressure in the abdomen forces fluid up through the neck and into the head.

4. As fluid enters the head, it makes the Dippy Bird top-heavy.
   
5. The bird tips. Liquid travels to the head. The bottom of the tube is no longer submerged in liquid.

6. Vapour bubbles travel through the tube and into the head. Liquid drains from the head, displaced by the bubbles.
   
7. Fluid drains back into the abdomen, making the bird bottom-heavy.
   
8. The bird tips back up.

If the bird dips into a cup of water, the fuzzy material absorbs water again and the cycle starts over. (Your warm hand can cause fluid in the Dippy Bird to rise).

[telecom]

put this inside of the enclosure:
https://www.canadiantire.ca/en/pdp/concrobium-moisture-grabbers-3-pk-1530256p.1530256.html?gclid=CjwKCAjwgabeBRBuEiwACD4R5rsoMhAh2xkQ0D80UjBvUGsWdXVnn9DupPpHi-40dMMPb28-c95A2RoCRNwQAvD_BwE&gclsrc=aw.ds&dclid=CMCt2ryKk94CFQuXyAodE7YEMg#store=305

[tinman]

put this inside of the enclosure:
https://www.canadiantire.ca/en/pdp/concrobium-moisture-grabbers-3-pk-1530256p.1530256.html?gclid=CjwKCAjwgabeBRBuEiwACD4R5rsoMhAh2xkQ0D80UjBvUGsWdXVnn9DupPpHi-40dMMPb28-c95A2RoCRNwQAvD_BwE&gclsrc=aw.ds&dclid=CMCt2ryKk94CFQuXyAodE7YEMg#store=305

Perhaps a funnel full of rice 

[onepower]

When we speak of a heat (temperature) engine(machine) we are talking about a differential temperature machine. A machine which produces motion or work from a difference in the temperature between two things.

As well most people like to talk about thermodynamics but I have found few actually understand it. They think we must always burn stuff to generate heat to cause air to expand and move something. However this is not the case and a difference in temperature can be created by heating or cooling. It is just as it sounds... a "difference" in temperature.

Here we have a couple options, we could run around hunting for something to burn for heat and gather it up like cave men. Or we could simply wet a material causing evaporation which cools the material producing a temperature differential which can also perform work. The hotter and dryer the air the greater the temperature differential generated by indirect evapoative coolers. Indirect evaporative coolers use regeneration not unlike Linde's air condenser which Tesla found remarkable.

It works like this, we cool a volume of air through evaporation then we take some of the output cool air to pre-cool the warm air coming in to be cooled. This increases the temperature differential using minimal energy, a heat exchanger and plain old water. Here's another little fact... we can add 2257 kJ/Kg as heat to turn water into steam to do work OR we can evaporate water and remove 2257 KJ/Kg of heat to do work because it is latent energy and it works both ways. Now which sounds easier and more economical... running around hunting and gathering shit to burn like an imbecile creating more pollution or using heat energy already present and evaporating some water?. Not to mention the fact that the greenhouse effect and climate change is making our planet warmer, more heat equals more energy... free ambient heat energy.

The real problem is most people have no creativity and wouldn't recognize a solution if it hit them in the forehead at 100 mph. We have all kinds of easy and quite obvious solutions to our problems if anyone had bothered to look. Energy is change and it does not matter how something changes only that it does. How many ways can something change and how does it change?, we have literally millions of options to choose from.

Meanwhile everyone seems content being entertained by dippy birds, lol.