Showing posts with label cooling. Show all posts
Showing posts with label cooling. Show all posts

Thinking meat based analogue communication

So...
We used to have this bird named "Spork".
Sometimes he was named "Pogo" because he didnt have enough legs. (he always didnt have enough legs, he just wasnt always called pogo (that sounds suspiciously like something Clevinger (Catch 22) might say)) (and whats with all the nested parenthesis?)))
Anyway...
Spork lived in a sectioned off bit of the house near my desk where I spent most of the day, so we got pretty close. As close as a human that really likes magpies can get to a magpie that almost always hates humans. I say "almost", because if you turned him on his back with his one leg in the air, he would relax so much you could push him around on the floor like a kid playing with a matchbox car. If you tried that when he was upright, hed peck your eyes out in a heartbeat. One of his fast bird heartbeats as well, not some dopey slow human heartbeat. Except Shaan when she offered Spork her (maybe smurf) keyring. Sporked liked Shaan and her keyring.
Anyway... I would whistle "Doo, du do du, and he would instantly reply "Do du do, du dooo do". It was almost as if he could help himself. He had to finish the tune. (I originally taught him the entire tune, but it took the first few notes for him to realise that it was time to sing)
We had to give him up when we had to move back to the flat lands from Cudlee Creek. We also miss all the other creatures we shared our lives with (a goat, an emu, a pig, three sheep, an owl, and various chickens) all still missed terribly.
Anyway... Some nice bird rescue people took in Spork to live with all their other magpies, a magpie loving dog that protected them all from foxes, and a parrot that nobody could understand because it spoke too fast. I suggested it was horse race calling as a result of being pre-owned by a gambler with a radio, and there was a general agreement that that might just be the case.
Really odd sulphur crested cockatoo.
But... it occurred to me that Spork now lived only 30 km away as the crow flies.
Thats only 5 magpie families or so. The other night I found myself trying to teach my local magpies the first (my) half of the tune so they might in turn teach the next groups radiating out from them. I managed to add one extra note to the current call of my local group, but interestingly I managed to get a complete (my half) call from a group further in the distance.
So, so far so good. So, so. You dont see the word "so" followed by the word "so" that much.
And... once I teach the local magpies the first half of the tune and get them to teach the next closets magpies( and so on, and so on), in 5-30 years or so, I hope to hear the second half of the tune (Sporks half) in reply.
Bam!
If so, I expect a Nobel prize for developing very slow, organic, analogue communication, and creating the first "bird meat" based communication protocol that doesnt require tying things to their feet.


120 things in 20 years - So... thats where my life is at.
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Subterranean Heating and Cooling

Installing a Subterranean Heating and Cooling System


Last night CTD commented on my post "If I could design a system from scratch...," saying:

You may have already thought about a subterranean heating and cooling system, but if not, heres a couple of links. Im considering one of these for its year-round efficiency (off grid if I can get the math to work out) and possibly a small rocket mass as a supplement for those really cold stretches...

http://www.youtube.com/view_play_list?p=672EC08E98ABA0FD
http://www.sunnyjohn.com/indexpages/shcs.htm

Such cool stuff! The subterranean heating/cooling system is primarily three layers of Underground Air Circulation Tubing (UACT), 4 inch thin-walled perforated drainage tubes (less than $6 per 10 foot length at Home Depot). The tubes are spaced about every 2 feet horizontally in each layer, and the UACT layers are each a foot deep. The tubes are connected to a plenum (e.g., a 55-gallon drum) at each end, and a fan blows the entire volume of the greenhouse through the underground tubing every 10 minutes.

During days when it gets toasty in the greenhouse, air enters the system warm and moist and comes out cool and dry, leaving the moisture and heat energy in the soil. When the greenhouse air gets colder than the soil (e.g., winter nights), the fan pumps cool air through the ground and it comes out warmer and moister.

John Cruickshank of SunnyJohn.com says hes created greenhouses in Zone 4 (average minimum temperature of -25 degrees F) that maintain a Mediterranean environment all year round without any supplementary heat.

I still want to include a rocket mass heater. One, I like to burn things (wood). Two, I like to cook things (pizza...). Three, my greenhouse isnt a double-glazed marvel of heat retention, so it will probably need supplemental heat, even though Im in Zone 7 (average minimum temperature of 5 degrees F).

Here are some sketches of how I think I could have both a Subterranean Heating and Cooling System (SHCS) and a Rocket Mass Heater (RMH).




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Aquaponics Cooling a fishtank

I found a source of really inexpensive trout fry from my local fly fishing association, but its already half way through the trout season, If I were to buy them, ($30 per 100) Id need a way of cooling my aquaponics system through summer.

A while ago, we had a burst water main in front of our house, and it got me thinking about the possibility of shedding a bit of heat into the water main. Given the foot path is currently dug up, and there are a couple of orange cones alerting people to this fact, it might be possible to run some plastic tubing around the main supply pipe, and pump some of my system water through it.

The temperature of the water and the underground pipe will be roughly the same as the earth around it. If you dig down a few feet. the temperature is much more stable than air temperature in the same location. If you think of a cave, youll see that the temperature is pretty close to the average yearly temperature of the location. This is because stone (dirt) holds a lot more heat than air, so it takes a lot longer for the rock to change temperature because so much "temperature" can be stored within it.

Because the pipes on my side of my water meter are open to the main pipe running down the length of the street, it might even be possible to use the pipes within my property.

Its just a vague thought, but it was in my head, so it had to come out.


120 things in 20 years just thought of something else, but its too naughty to post about.
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