Solar Ricardo

Solar Ricardo

Sunday, December 18, 2011

Growing Power in Milwaukee

Here is a quick-and-dirty compilation video of my visit to Growing Power in Milwaukee...

Wednesday, December 7, 2011

Saturday, December 3, 2011

Drones, Feral Technology and Freedom

 Today, Occupy Iowa protestors are targeting the maker of non-military drones. Should we be worried about the technology, or the government that misuses it?

http://thegazette.com/2011/12/02/occupy-protseters-to-target-cedar-rapids-drone-facility/

Here is a piece I wrote for OBSOLETE! # 3- it relates to this question a bit...

 
"Renegade unmanned drone wandered skies near nation’s capital" read the August 26th, 2010 headline on Yahoo News.  The story explained, "The drone, a Northrop Grumman MQ-8B Navy Fire Scout, is supposed to have a failsafe system that directs it to land safely if it loses its communication link with the controller on the ground. That obviously didn't happen on the drone's Aug. 2 flight, and it made a beeline from Naval Air Station Patuxent River in southern Maryland, where it was being tested, toward Washington. It was roughly 40 miles from the capital before the Navy regained control." Where did the drone "think" it was going?  What was it "planning" to do?

More and more, humanity's technological offspring is coming of age and being given its independence. However, our sentient electronic progeny is growing up to look more like Skynet than Robby the Robot. GPS, facial recognition software and CCTV coordinate and catalog our moves through the physical hive, while the World Wide Web and social networking create the hive mind. Robots manufacture our goods and run our warehouses. The latest new car models feature automatic parallel parking and braking, and next years models will feature automatic lane changing.

So far, our artificial intelligence has not chosen to unleash the "Terminator" scenario like Skynet.  Steven Levy, in the Dec. 2010 issue of Wired wrote, "In its earlier days, artificial intelligence was weighted with controversy and grave doubt, as humanists feared the ramifications of thinking machines. Now the machines are embedded in our lives, and those fears seem irrelevant."

Technology appears to still be reliant on humans, particularly to supply its voracious need for energy. If humans suddenly disappeared, technology could not run for long on autopilot without humans to feed it electrons.  Recent images of Chernobyl show us a 1980's Soviet city in the Ukraine, abandoned after a nuclear power plant disaster.  The buildings are silent, the machinery quietly rusting and returning to the earth, the streets occupied only by reindeer and fox. But imagine a modern computerized city, abandoned by humans because of a disaster, it's power-grid humming along, it's CCTV cameras cataloging the movements of the animals that now inhabit it. How would those animals use the heat and light? What sort of evolution would take place?

For now, it is up to humans to unleash the potential in technology. In many cases, doing so in ways not intended by "Authorities" appears to be humanities best hope for the advancement of civilization. It is not the authorized use of technology that moving us forward, but rather its abuse.

The actions of Wikileaks and the hacker collective Anonymous provide reasons for hope. Wikileaks has done more to shine light on the real workings of the power elite than any news outlet since Watergate. When the world's oligarchs set out to silence Wikileaks, Anonymous set about attacking the nervous system of their money machine. Meanwhile, columnist Dan Savage is re-loading his 2004 Google-based attack against Rick Santorum, the radical anti-gay rights Republican presidential hopeful. Thanks to Savage's creative use search-engine technology, the top Google search result for "Santorum" is now " 1. The frothy mix of lube and fecal matter that is sometimes the byproduct of anal sex. 2. Senator Rick Santorum"  (go ahead and google it for yourself! Remember, by doing so, you help solidify the ranking of that definition.)  While more and more people are satisfied to fall into the societal hypnosis and cultural Stockholm syndrome of mass media and consumer culture, these digital revolutionaries are fighting a very real war on the battlefield of the "New Reality".

In the developing world, mobile technology is becoming the dominant agent of change. Villagers across the globe are using mobile phones to transform their economic and political lives. Without grid power, creative uses of scavenged power supplies provide battery charging. Cheap solar cells, peddle-powered generators and home-built wind turbines are all being used to supply "juice".

Much credit has recently been given to social networking tools like Facebook and Twitter for the pro-democracy protests in the Middle East, but it is the creative use of those tools that has made those actions possible. Anonymous was preparing to reverse-engineer the revolution to use fax technology. If that didn't work, it would have been Xerox copiers or ditto machines, or...?

In this issue of OBSOLETE! we explore the relationships between humans, their technology and "The Wild".  We wonder what happens to technology when it becomes cast-off, or when it is repurposed. What happens in that territory when good economic times swell and push technology into the wilderness and what is left behind when that tide recedes?

 Feral Technology.  Technology that has escaped from domestication and adapted to the wild. Technology that has found a new use for itself. Technology that has escaped extinction by lurking around the industrial wasteland at the edge of town.

Thursday, November 24, 2011

Glass printing gizmo...

Here's a little gizmo I built for a friend to silkscreen pint glasses and bottles...

Sunday, October 2, 2011

Ridin’ w/ Sweet Lady Propane: A few notes about propane powered vehicles

by W. Joe Hoppe
photos by P.S. Monear

From OBSOLETE! Magazine #4

Here in Texas it’s pretty much a given that every family needs at least one pick-up truck. And everybody knows that old trucks are way cooler (and infinitely more affordable) than new ones. Even though there are lots of arguments for old cars and trucks being less damaging to the environment than newer vehicles, claims that re-use zeros out pollution over time, concern with the toxic chemicals, petrochemicals, and silicone in new cars, lead or other heavy metals in batteries, etc, there’s no denying that old trucks from the pre-catalytic converter days pump out a lot of hydrocarbons when you’re driving them around. So I’ve got to admit that driving around Austin in my ‘71 Dodge pick-up, even with its economical and bulletproof slant six engine (225 cubic inch displacement) made me feel like I was more of a problem than a solution in the fight against global warming.

Fortunately, there’s a lot of information out there on the interweb about converting your vehicle to propane. And even more fortunate for me, one of the country’s premiere gurus, Franz Hoffmann (http://franzh.home.texas.net/) lives about 30 miles away in Bastrop, Texas. I also was able to access a lot of good advice through a website devoted specifically to slant six engines at www.slantsix.org.

After some research, I decided to take the plunge and convert my truck whole hog, not to some system that would switch back and forth from gas to propane, but a deep commitment to Sweet Lady Propane, and only Sweet Lady Propane. One advantage that quickly becomes obvious is that you get to make a lot of “King of the Hill” jokes.

Chemically, propane comes from the distillation process when crude oil gets converted to gasoline. It’s a by-product. All of those flares and flames at an oil refinery? That’s propane being burned off. So in an environmental sense, you’re making use of something that is being underutilized in general, and making more complete use of an existing product. This doesn’t get around all of the inherent evils of the petroleum industry, but it does lend to a deeper effectiveness, which can’t be too bad.

Although it’s called propane what one really is buying is liquid petroleum gas, or LPG, which is a mixture of propane and butane (Hank Hill calls it a “bastard gas” for reasons we won’t get into here). LPG is readily available, although generally expensive, at U-Haul stores and RV centers. It’s much less expensive at places that sell propane (or more accurately LPG) for rural heating, etc. The last time I filled up the thirty gallon tank in the back of my truck, propane was three dollars a gallon. That’s about eighty cents less than a gallon of gas. When travelling in Texas, I use a book put out by the Propane Association that lists fuel sources in towns across the state. I’ve used it in trips to Houston and San Antonio, but should probably get an updated version. Odds are that most states have some equivalent directory.

LPG is pumped into a tank under pressure in liquid form. It turns into a gas somewhere around 20 degrees below zero Fahrenheit, but pressure keeps it a liquid. Propane burns clean. The exhaust of my truck has fewer hydrocarbons than a brand new car.
The conversion, if you are working with an older carbureted engine, is simple as well. Basically you’ll need four main components:

1. A propane tank – this needs to be sturdy and build for the specific purpose of storing liquid petroleum. It should include a blow-off valve and a gauge. I have a 30 gallon tank in the bed of my pick-up. Trucks are probably the easiest vehicles to convert because all you have to do is give up some bed space for the tank. Tanks are usually cylindrical, and can be found in auctions of state and municipal vehicles and their parts (many City of Austin vehicles run on propane) or in areas where there are lots of oil wells, as often oil riggers will have converted vehicles that make use of a cheap and plentiful gasoline by-product. The tank can cost a couple of hundred bucks, but often you can find them used for much less.

2. A vacuum shut-off valve—this is a safety device that uses engine vacuum when the engine is being started to release propane, which is under pressure, from the tank.

3. A vaporizer/regulator – this part has two functions, even though the propane is going to come out in vapor form unless you’re in a very cold place, it just makes sure by diverting hot water from the truck’s heater core in order to vaporize the propane. The regulator functions just like the regulator on a scuba tank, ensuring proper flow to the next piece you’ll need—

4. A mixer---what gets mixed is the propane and air. There’s a big diaphragm in the top of the mixer that helps with this process. Just like any air fuel mixture, somewhere between 16:1 and 18:1 is the ideal proportion between air and fuel. In my truck, the mixer is bolted to the throttle plates of an old Carter BBD carburetor to control the mix of fuel and air being sucked into the engine. Since the propane is under pressure, a fuel pump is not needed.
Important note: because of less density than gas droplet/fuel mixture usually found in an engine’s combustion chamber, you must upgrade your engine’s ignition system as well.

All told, parts for a conversion should run between $1,000-1,500.

ADVANTAGES OF PROPANE CONVERSION
--Clean burning and extremely small hydrocarbon emissions
--Since it’s already a gas, more equal fuel distribution to all cylinders
--Since under pressure, not effected by gravity, hills, etc (rockclimbers make extensive use of propane)
--Smoother idle, easy cold weather starting
--High octane (approx. 108) so engine’s compression and efficiency easily raised
--Unique and different
--Hank Hill references galore

DISADVANTAGES OF PROPANE CONVERSION
--fewer BTU’s (British Thermal Units) than gasoline –poorer gas mileage by at least 33%
--fueling stations can be difficult to find
--really doesn’t save you any money
--need to buy yearly propane tax sticker (in Texas, anyways)
--hard to find knowledgeable mechanics—you’ll need to do most of your own work


SO…
It took me about a year to get all the bugs out, but I’ve been running w/ Sweet Lady Propane pretty much trouble free for two years now. If you can resign yourself to the poor gas mileage, and having to plan ahead to get a fill up, going propane is definitely recommended. I’ve got the satisfaction of driving an old vehicle but not pumping out hydrocarbons, and I’m driving something different that I’ve done all by myself.


Places for more info:
Raso Enterprises Alternative Fuels Discussion Board:
http://fuelsforum.rasoenterprises.com/index.php?sid=fde616a2181c78c8e58931c40539055d
Info on Impco Propane Delivery Systems:
http://www.propane.tx.gov/commercial/7stepimpcosystem.pdf

Franz Hoffmann’s Alternative Fuel Site:
http://franzh.home.texas.net/

Wednesday, June 1, 2011