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Size: 1372
Comment:
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Size: 2364
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 2: | Line 2: |
| = Drinking Bird, 4C31.30 = | = Drinking Bird, 4C31.30 = |
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| * '''Cabinet:''' Mechanic (ME), Waves & Sound (WS).... * '''Bay:''' (A? or B?) * '''Shelf:''' #1,2,3.. (Use "T" for items that are on top of that cabinet bay) |
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| (attachment photo showing the fully set up demonstration) | * '''Cabinet:''' Thermodynamics Cabinet * '''Bay:''' (A2) * '''Shelf:''' #5 attachment:4C31-30_02i-400.jpg |
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Insert description of apparatus, its component, what it is demonstrating. |
Also called Dippy Bird or Tippy Bird. |
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| || || || || ||apparatus||ME, Bay B1, Shelf #2|| || ||all other parts||ME, Bay B1, Shelf #2|| || ||...||ME, Bay B1, Shelf #2|| || ||Possible supplies that are needed||Rode and Tack Cabinet|| || ||...|| In Lecture Halls|| || ||...|| Stock Cabinet || || ||...|| Stock Cabinet || || |
||Drinking Bird||[:ThermoCabinetBayA2: TD, Bay A2, Shelf #5]||<:> 4C31.30|| ||150 ml. beaker||Shelf over the sink area 2237||<:> NA || |
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| 1. Make a Setup check list. 1. ... |
1. Make sure that the drinking bird is assembled. If not do the following. 1.1 Insert the Pivot into the openings at the top of the two legs as per the photo below and make the bird move to and fro freely. 1.1 vvvv 1. Make the felt of bird wet.(The more the head wet the fast the demonstration happens.) 1. Wait until you see the red liquid grow up. |
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| 1. List any Warnings.... 1. Demonstration may require practice. |
1. Do not break the tube( bird body). The red liquid (dichloromethane or methylene chloride)is an acute inhalation hazard and can cause optic neuropathy and hepatitis. |
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| Insert description of demonstration, how is the demonstration preformed. | Put water on the felt of bird. When water evaporates, it makes the temperature of the glass head lower. This makes some of the red liquid (dichloromethane or methylene chloride) vapor to condense. From ideal gas law, the pressure in the head of the bird drop due to the lower temperature and condensation.The difference of the pressure between the head and base of the bird causes the red liquid to be pushed up from the base. Then the head of the bird become heavy and tips over. While the bird tips over, it make air hole that can make red liquid flows back to the bottom bulb and this makes bird go back to its vertical position again. And this will occur periodically until the water on the felt of bird dry. |
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| ||attachment other photos||attachment other photos|| ||attachment other photos||attachment other photos|| |
||<style="border:0"> attachment:4C31-30_03i.jpg ||<style="border:0" |2> ||<style="border:0" |2> attachment:DrinkingBird-01.gif||<style="border:0" |2> ||<style="border:0" |2> Move: attachment:DrnkingBird.mpg || ||<style="border:0"> attachment:4C31-30_04i.jpg|| attachment:DrnkingBird.mpg |
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| 1. List any references [Insert a back link to main topic list] |
1. [http://en.wikipedia.org/wiki/Drinking_bird Wikipedia] [:Thermodynamics:Thermodynamics] |
Drinking Bird, 4C31.30
Location:
Cabinet: Thermodynamics Cabinet
Bay: (A2)
Shelf: #5
attachment:4C31-30_02i-400.jpg
Description: Also called Dippy Bird or Tippy Bird.
Equipment |
Location |
ID Number |
Drinking Bird |
[:ThermoCabinetBayA2: TD, Bay A2, Shelf #5] |
4C31.30 |
150 ml. beaker |
Shelf over the sink area 2237 |
NA |
Setup:
- Make sure that the drinking bird is assembled. If not do the following. 1.1 Insert the Pivot into the openings at the top of the two legs as per the photo below and make the bird move to and fro freely. 1.1 vvvv
- Make the felt of bird wet.(The more the head wet the fast the demonstration happens.)
- Wait until you see the red liquid grow up.
Cautions, Warnings, or Safety Concerns:
- Do not break the tube( bird body). The red liquid (dichloromethane or methylene chloride)is an acute inhalation hazard and can cause optic neuropathy and hepatitis.
Demonstration:
Put water on the felt of bird. When water evaporates, it makes the temperature of the glass head lower. This makes some of the red liquid (dichloromethane or methylene chloride) vapor to condense. From ideal gas law, the pressure in the head of the bird drop due to the lower temperature and condensation.The difference of the pressure between the head and base of the bird causes the red liquid to be pushed up from the base. Then the head of the bird become heavy and tips over. While the bird tips over, it make air hole that can make red liquid flows back to the bottom bulb and this makes bird go back to its vertical position again. And this will occur periodically until the water on the felt of bird dry.
attachment:4C31-30_03i.jpg |
|
attachment:DrinkingBird-01.gif |
|
Move: attachment:DrnkingBird.mpg |
attachment:4C31-30_04i.jpg |
attachment:DrnkingBird.mpg
References:
[http://en.wikipedia.org/wiki/Drinking_bird Wikipedia]
[:Thermodynamics:Thermodynamics]
[:Demonstrations:Demonstrations]
[:Instructional:Home]