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Size: 1371
Comment:
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Size: 1952
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 = |
| Line 5: | Line 6: |
| * '''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) |
* '''Cabinet:''' [:ThermoCabinet:Thermodynamics Cabinet] * '''Bay:''' [:ThermoCabinetBayA2:A2] * '''Shelf:''' #5 |
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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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| 1. Make a Setup check list. 1. ... |
1. Set up like picture above. 1. Make the felt of bird wet. 1. Wait until you see the red liquid grow up. |
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| 1. List any Warnings.... 1. Demonstration may require practice. |
1. |
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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 dichloromethane(red liquid)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:DrinkingBird-01.gif||attachment other photos|| |
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| 1. List any references | 1. http://en.wikipedia.org/wiki/Drinking_bird |
Drinking Bird, 4C31.30
Location:
Cabinet: [:ThermoCabinet:Thermodynamics Cabinet]
Bay: [:ThermoCabinetBayA2:A2]
Shelf: #5
(attachment photo showing the fully set up demonstration)
Description: Also called Dippy Bird or Tippy Bird.
Equipment |
Location |
ID Number |
|
|
|
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 |
|
Setup:
- Set up like picture above.
- Make the felt of bird wet.
- Wait until you see the red liquid grow up.
Cautions, Warnings, or Safety Concerns:
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 dichloromethane(red liquid)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:DrinkingBird-01.gif |
attachment other photos |
attachment other photos |
attachment other photos |
References:
[Insert a back link to main topic list]
[:Demonstrations:Demonstrations]
[:Instructional:Home]