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Raiford Storey
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Raiford Storey

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I moved to the west coast over 4 years ago and I've noticed that many western cities seem to be in denial about the influence of racism in their history. Perhaps it's too convenient to assume that racial atrocities in America were limited to the south east.

Quote from article:
"As Neda Maghbouleh pointed out for an article in the January 2009 issue of Center for New Racial Studies, the 2008 presidential campaign of Barack Obama gave Portland newspapers a striking image of its racial makeup. Just look at the photo above from Portland during Senator Obama’s presidential campaign. You’d be forgiven for thinking that maybe Dave Matthews Band was about to go on stage.

The racial composition of any American city is a product of its history. This may seem painfully obvious, but it’s something that we need to say out loud and type in bold letters to fully appreciate. The racial composition of any American city is a product of its history. And its a history that so many people in Oregon, in Minnesota, in any other “whitopia” don’t seem to be privy to."

http://gizmodo.com/oregon-was-founded-as-a-racist-utopia-1539567040
When Oregon was granted statehood in 1859, it was the only state in the Union admitted with a constitution that forbade black people from living, working, or owning property there. It was illegal for black people even to move to the state until 1926. Oregon’s founding is part of the forgotten history of racism in the American west.
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Raiford Storey's profile photoMatt Proud's profile photoJames Jackson's profile photoClay Caviness's profile photo
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Exactly: I noticed the same having moved from Oklahoma to Minnesota as a youngster.
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Raiford Storey

Crashes and Accidents  - 
 
First flight & crash of a Tricopter today.  I think the servo came loose and sent it into a death spiral.  The impact with the ground sent the camera flying.  I was recording at 60 fps and was able to get a couple good screen shots from the video as it flipped though the air.
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An awesome shot of devastation  Painful to look at..
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Raiford Storey

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NEED to try this.
My good friend and studio mate Aaron (De Land Tree) - his work is pictured above - has been doing a lot of work with electroforming copper structures, and recently helped me plate some 3D prints.  It was such a fun and intere...
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Paul Huckabee's profile photoTom Fitzgerald's profile photo
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That's so cool.
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Raiford Storey

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"When discussing self-driving cars, people tend to ask a lot of superficial questions: how much will these cars cost? Is this supposed to replace my car at home? Is this supposed to replace taxis or Uber? What if I need to use a drive-thru? 

They ignore the smarter questions. They ignore the fact that 45% of disabled people in the US still work. (Source: page 20) They ignore the fact that 95% of a car's lifetime is spent parked.(Source) They ignore how this technology could transform the lives of the elderly, or eradicate the need for parking lots or garages or gas stations. They dismiss the entire concept because they don't think a computer could ever be as good at merging on the freeway as they are. 

They ignore the great, big, beautiful picture staring them right in the face: that this technology could make our lives so much better."
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Raiford Storey

Equipment  - 
 
 
I recently built a beer fermentation chamber using a Peltier (TEC) plate for cooling.  I built the chamber out of 1-1/2" Styrofoam insulation and a lot of duct tape.  I salvaged a couple old Intel heat sinks and fans for either side of the TEC.  They are mounted to a cheap cutting board that I cut a square hole in.  It's all controlled with BrewPi [1], which is a RaspberryPi + Arduino project that is typically used for controlling chambers made from modified refrigerators.  I made a quick a dirty Arduino shield to easily connect the DC relay and temperature probes.

I wouldn't call it a huge success because it's only barely able to maintain a delta of 10F (5.56C) when cooling.  Thankfully that's enough for the batch I currently have fermenting in it.

Some things I learned:
1) Building an efficient thermal chamber is hard.  Buying an old/used fridge sounds way easier.
2) The 92W Peltier (TEC-12706) I bought is not powerful enough.
3) Cutting sheets of Styrofoam in a uniform manner is a pain.  I probably should have used nichrome wire and some kind of jig.

The end result of this project is that I came up with an even better idea for a more efficient way of cooling a fermenter.  Stay tuned for that build.

[1] http://www.brewpi.com/

#HomeBrewing #BrewPi 
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Peter Hrinda's profile photo
 
I built a ferm chamber a while back with a peltier unit as well. I have no real issue maintaining ~15 deg. below ambient. If it is warm in the house and the fermentation is at peak, I add ice to lower the temp. The peltier seemed like it would be great, and in some ways it is. There is no coolant, no lines, and no hassle. At the same time it is really slow to get to temp, and it runs constantly to maintain temperature. I keep saying that I am going to buy another unit and cut another hole in the box. I used a computer power supply and left another set of wires connected to the supply for expansion. Bigger fans on the unit may help as well.
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Raiford Storey

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I miss Freeside.
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Luke Tidd's profile photoRiff Zifnab's profile photoJohn weiler's profile photo
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I need to go over and see what they have been up to
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This one is so good.
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Raiford Storey

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My interactive presentation on digital signal processing is now available on the web. Annoy your neighbors whistling into your microphone!

More details, source code, etc. at the site.

Crosspost: <http://kpreid.livejournal.com/52068.html>
A Visual Introduction to DSP for SDR. This is an animated slide deck providing a tour of digital signal processing topics relevant to implementation of software-defined radios, focusing on building visual/geometric intuition for signals. Topics covered: Complex (IQ) and analytic signals.
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Chris Anness's profile photo
 
thanks! I need your advice on something. send me your digits sometime.
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Raiford Storey

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We are thrilled to announce that we will be having a baby girl in May 2015!
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Duane Howard's profile photoH P Ladds's profile photoJason Ellis's profile photoKIM MARIE TOOKES's profile photo
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Congratulations to you. God bless.
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Raiford Storey

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I recently built a beer fermentation chamber using a Peltier (TEC) plate for cooling.  I built the chamber out of 1-1/2" Styrofoam insulation and a lot of duct tape.  I salvaged a couple old Intel heat sinks and fans for either side of the TEC.  They are mounted to a cheap cutting board that I cut a square hole in.  It's all controlled with BrewPi [1], which is a RaspberryPi + Arduino project that is typically used for controlling chambers made from modified refrigerators.  I made a quick a dirty Arduino shield to easily connect the DC relay and temperature probes.

I wouldn't call it a huge success because it's only barely able to maintain a delta of 10F (5.56C) when cooling.  Thankfully that's enough for the batch I currently have fermenting in it.

Some things I learned:
1) Building an efficient thermal chamber is hard.  Buying an old/used fridge sounds way easier.
2) The 92W Peltier (TEC-12706) I bought is not powerful enough.
3) Cutting sheets of Styrofoam in a uniform manner is a pain.  I probably should have used nichrome wire and some kind of jig.

The end result of this project is that I came up with an even better idea for a more efficient way of cooling a fermenter.  Stay tuned for that build.

[1] http://www.brewpi.com/

#HomeBrewing #BrewPi 
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jason lash's profile photoRaiford Storey's profile photoSean Laurent's profile photoAlain Chauvet's profile photo
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I was thinking of using some 3/8" ID SS tube for a fluid transfer cooler. Basicall run it straight down, then wrap it around it self on the way back up. On the top, you can just fit the two ends snug through some holes in a carboy stopper. Then plumb water in/out lines to it through a pump that's sitting in a 1+ gal pitcher in a nearby fridge. The cold water flowing through should pull a ton more heat than a peltier plate.
I was going to wire the water reservoir and controller into my existing kegerator so i could hot-ferment my belgians outside while still having good control. Just havent used belgian yeast in a while :) 

If it works well and your fancy, you could daisy-chain a few in series with electronically controlled servo valves to adjust the flow bias for different recipes/target temps.
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Raiford Storey

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Wow, Freeside has really changed since I was there!  It looks amazing.
 
I was recently in Georgia for a for a non-HaD reason. This was my first trip to Georgia and it was hot, really hot, something I’m not too accustomed too. They also have nice condition roads there, something else I’m not accustomed too. I did have some…
I was recently in Georgia for a for a non-HaD reason. This was my first trip to Georgia and it was hot, really hot, something I'm not too accustomed too. They also have nice condition roads there, ...
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Jon Larimer's profile photoSean F. Kennedy's profile photoScott McGraw's profile photoD Bax's profile photo
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They all do work actually.
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  • Talisman
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