Differences between revisions 1 and 17 (spanning 16 versions)
⇤ ← Revision 1 as of 2009-09-16 16:17:27 →
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← Revision 17 as of 2009-09-21 16:12:49 → ⇥
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Editor: srnarf
Comment:
Deletions are marked like this. Additions are marked like this.
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= Tippy Sprott, PIRA# =
= Tippy Sprott, 4C31.30b =
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 * '''Cabinet:''' Thermodynamics Cabinet
 * '''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(TD)
 * '''Bay:''' (A2)
 * '''Shelf:''' "T"

attachment:4C31-30_02i-400.jpg
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Insert description of apparatus, its component, what it is demonstrating. 		Also called -------.
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|| || || ||
||Tippy Sprott||ME, Bay B1, Shelf #2|| ||
||Spot light||ME, Bay B1, Shelf #2|| ||		 ||Tippy Sprott||[:ThermoCabinetBayA2T: TD, A2, Shelf "T"]||<:> 4C31.30b||
||250 Watt heat Lamp||TD, A?, Shelf "?" ||<:> NA ||
||190x100 Beaker||Shelf over the sink area 2237 ||<:> NA ||
||Sponge||Shelf over the sink area 2237 ||<:> NA ||
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 1. Make a Setup check list.
 1. ...		  1. Make sure that the tippy sprott is assembled. If not do the following.
    - Insert the Pivot into the openings at the top of the two legs as per the photo above and make the tippy sprott move to and fro freely.
 1. Make the head of the Tippy Sprott wet as much as you can by using the sponge to absorb the water and then squeezes About 10 minutes in the first tip and then it takes about 50-55 seconds per oscillation.
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 1. List any Warnings....
 1. Demonstration may require practice.
  1. Do not break the tube( bird body). The red liquid ([http://en.wikipedia.org/wiki/Dichloromethane#Toxicity dichloromethane or methylene chloride]) is an acute inhalation hazard and can cause optic neuropathy and hepatitis.
 1. Be sure to keep the bird's body dry, otherwise the bird will stop to drink.
 1. Be sure keep the bird's in the place where the air ventilating regularly.
 1. If the bird's sways backward adjust the metal part straight or haend a little bit forward.
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Insert description of demonstration, how is the demonstration preformed. Put water on the head 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 makes 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 head 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:TippySprott.mp4||<style="border:0" |2> Move: attachment:TippySprott.rm||
||<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]

Tippy Sprott, 4C31.30b

Location:

  • Cabinet: Thermodynamics(TD)

  • Bay: (A2)

  • Shelf: "T"

attachment:4C31-30_02i-400.jpg

Description: Also called

.

Equipment

Location

ID Number

Tippy Sprott

[:ThermoCabinetBayA2T: TD, A2, Shelf "T"]

4C31.30b

250 Watt heat Lamp

TD, A?, Shelf "?"

NA

190x100 Beaker

Shelf over the sink area 2237

NA

Sponge

Shelf over the sink area 2237

NA

Setup:

  1. Make sure that the tippy sprott is assembled. If not do the following.
    • - Insert the Pivot into the openings at the top of the two legs as per the photo above and make the tippy sprott move to and fro freely.
  2. Make the head of the Tippy Sprott wet as much as you can by using the sponge to absorb the water and then squeezes About 10 minutes in the first tip and then it takes about 50-55 seconds per oscillation.

Cautions, Warnings, or Safety Concerns:

  1. Do not break the tube( bird body). The red liquid ([http://en.wikipedia.org/wiki/Dichloromethane#Toxicity dichloromethane or methylene chloride]) is an acute inhalation hazard and can cause optic neuropathy and hepatitis.

  2. Be sure to keep the bird's body dry, otherwise the bird will stop to drink.
  3. Be sure keep the bird's in the place where the air ventilating regularly.
  4. If the bird's sways backward adjust the metal part straight or haend a little bit forward.

Demonstration:

Put water on the head 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 makes 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 head of bird dry.

attachment:4C31-30_03i.jpg

attachment:DrinkingBird-01.gif

Move: attachment:TippySprott.mp4

Move: attachment:TippySprott.rm

attachment:4C31-30_04i.jpg

attachment:DrnkingBird.mpg

References:

  1. [http://en.wikipedia.org/wiki/Drinking_bird Wikipedia]

[:Thermodynamics:Thermodynamics]

[:Demonstrations:Demonstrations]

[:Instructional:Home]

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