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OfflineMad Science
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Registered: 08/27/12
Posts: 13
Last seen: 11 years, 10 months
How does the SGFC work?
    #16825880 - 09/10/12 09:22 PM (12 years, 4 months ago)

Just a question that popped into my head:

How does the SGFC keep in humidity with all the holes to guarantee FAE?

I know that it works but I'm just curious how. Wouldn't all the FAE push the humidity out and continue until the entire room is as humid as the FC?


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"Losers visualize the consequences of failure; Winners visualize the rewards of success."

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Offlinezepski
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Registered: 10/01/11
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Re: How does the SGFC work? [Re: Mad Science]
    #16825925 - 09/10/12 09:29 PM (12 years, 4 months ago)

Quote:


The theory of operation for the shotgun mushroom fruiting chamber is that natural air currents travel from areas of high pressure to areas of low pressure. Cool air has the molecules closer together than warm air, thus cool air is at a slightly higher pressure than warm air. When we put several inches of damp perlite in the bottom of our terrarium, we create an area with a slightly cooler temperature than the air above, which is exposed to lights that create heat, and our mushroom substrates, which are often at up to a few degrees warmer than the surrounding air due to thermogenesis.
terrarium_tek_perlitea terrarium_tek_perlite_2a terrarium_tek_perlite_3a terrarium_tek_perlite_4a

Click thumbnails to enlarge

This temperature differential, however slight, results in enough of a pressure gradient that it causes air to flow up through the perlite, absorbing moisture as it travels, and into the relatively lower pressure air within the fruiting portion of our fruiting chamber.

This air then exits through the holes in the upper section of the terrarium, carrying the excessive CO2 produced by our mycelium out with it. With this design, no electrical or mechanical equipment is required. Regular misting helps to keep our brf cakes or other substrates moist, and also serves to replace the moisture that evaporates from the perlite.




Taken from: http://www.mushroomvideos.com/Terrarium-Tek

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Offlinecloudpersona
I don't even...

Registered: 12/17/11
Posts: 1,285
Last seen: 7 years, 2 months
Re: How does the SGFC work? [Re: Mad Science]
    #16825941 - 09/10/12 09:31 PM (12 years, 4 months ago)

Quote:

Mad Science said:
Just a question that popped into my head:

How does the SGFC keep in humidity with all the holes to guarantee FAE?

I know that it works but I'm just curious how. Wouldn't all the FAE push the humidity out and continue until the entire room is as humid as the FC?



Read this. https://www.shroomery.org/forums/showflat.php/Number/15407016#15407016


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“The shaman is not merely a sick man, or a madman; he is a sick man who has healed himself.”
– Terence McKenna
“If the words ‘life, liberty, and the pursuit of happiness’ don’t include the right to experiment with your own consciousness, then the Declaration of Independence isn’t worth the hemp it was written on.”
-Terence McKenna

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OfflineMad Science
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Registered: 08/27/12
Posts: 13
Last seen: 11 years, 10 months
Re: How does the SGFC work? [Re: Mad Science]
    #16831199 - 09/11/12 07:54 PM (12 years, 4 months ago)

Thanks Guys!!


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"Losers visualize the consequences of failure; Winners visualize the rewards of success."

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Offlinearkady2300
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Registered: 08/25/10
Posts: 51
Loc: Delaware Flag
Last seen: 11 years, 7 months
Re: How does the SGFC work? [Re: Mad Science]
    #16831265 - 09/11/12 08:02 PM (12 years, 4 months ago)

Great answers and a good question. :smile:

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