Wednesday, December 17, 2008
Thursday, November 27, 2008
Monday, November 24, 2008
Saturday, November 22, 2008
Sunday, November 16, 2008
Tuesday, November 11, 2008
Its about a manufacturer who is reducing the cost of producing solar panels already for a 1/3rd of their typical cost. The experts say the are costs expected to match traditional power sources in just five years!
Monday, November 10, 2008
Sunday, November 9, 2008
Please keep thinking about this subject. I think you all are right about our need as a profession to be more emphatic about what ethics means.
Tuesday, November 4, 2008
Monday, November 3, 2008
Saturday, November 1, 2008
Friday, October 24, 2008
I came across recent information about the release of BMW's new Hydrogen 7 model that "takes in hydrogen and emits nothing but water vapor". So liquid hydrogen would be the source of energy, but it is dual platform, with the conventional gasoline tank as well. Although hydrogen is abundant, I am wondering how that would that impact the infrastructure, having "hydrogen stations" in our cities. Also, BMW is a premium brand, therefore not affordable to the common person, so I am wondering if this technology is cost effective.
Here is the link to an interesting article and some images of the car and the hydrogen stations.
Thursday, October 23, 2008
- He mentioned the implemenation of this vehicle could advocate for more people to move to cities, creating a more dense population.... I guess in theory that sounds good because it would create a smaller footprint for a larger portion of population, but many other problems would be introduced if cities continued to grow.
- There is an inherent problem with these being owned by the public at-large... people want to own things and assert there status. With the use of bikes (as he mentioned is currently being done in Paris) this seems less important than with a motorized vehicle... so I feel that argument was flawed.
- I honestly think these would be better utilized in suburbia to supply transportation TO the city (not within it)...
- I wonder how safe these are? He mentioned no safety was "compromised" in the design, but what does that really mean?
Anyway, for the most part I thought this was a really cool idea and would love to see them utilized in the near future.
Wednesday, October 22, 2008
Tuesday, October 21, 2008
An excerpt from one company, the Toronto-based WhalePower Corp:
"Using 'a million years of field tests' to their advantage, Toronto-based WhalePower Corp. is using the fins of humpback whales to help design a better fan (and, hopefully, wind turbine). After US scientists discovered that the tubercles -- the little bumps on humpback fins -- result in 32 percent less drag and an 8 percent rise in lift when compared to a smooth fin. That means a fan blade that 'makes the fan quieter, more efficient, and better at pushing down the air,' according Monica Bowden, chief executive officer of Envira-North, the company that has licensed the WhalePower design."
links with further info:
Sunday, October 19, 2008
This website, inhabitat.com, has a lot of current applications of biomimicry in architecture. This particular example is of solar panels that are placed in Glasgow's River Clyde that will provide power to the city. They are the architectural version of lily pads, floating, sun absorbing objects. It's a really great idea and not only do they acquire energy but they also serve as a focal point for those visiting the river's edge.
Tuesday, October 14, 2008
Sunday, October 5, 2008
Friday, October 3, 2008
Wednesday, October 1, 2008
Sunday, September 28, 2008
My family has actually been to Sudbury, Ontario (McLennan's hometown) a couple times. As soon as I read Sudbury in the Foreword, even before I read the fact about it being the nickel capital, I remembered this fact (probably aided by the memory of the nickel in the picture above). The interesting part of this to me though is that I was there when I was 6 or 7 years old and then again around 9. And as early as that may be, I have a vivid memory of the barrenness of the landscape. I talked to my brother (2 years younger than me) and he remembered the same, as well as the massively tall smokestacks. It amazes me that at such a young age we are still that aware of our surroundings. I also believe that even then, I knew that something wasn't right about the area, it just wasn't normal. It makes you wonder how if as children we can so easily tell right from wrong, how we get led so far astray as we grow older and supposedly more aware of our surroundings.
Saturday, September 27, 2008
Friday, September 26, 2008
This article also mentions one of the factors for sustaining natural capital, as we talked about last week - "Shifting from sale of goods to provision of services". It mentions that although the installations of photovoltaic systems is a common stereotyped as expensive elements, companies like Google, are now beginning to look at it in terms of as beneficial investments through "returns on investment" and "internal rate of return". They mention that it does not need much maintenance (as the the inverters are the only major replacement necessities every 15 years or so), provided that is installed correctly and appropriately integrated into the building.
Tuesday, September 23, 2008
Just a few but if you google "google solar powered parking lots" , (lol, google, google) you'll find a bunch of them.
Google's entire corporate campus in Mountain View, CA is going to become a 1.6 megawattphotovoltaic installation.
As one of the most recognizable brands on the Internet, Google is on a mission to organize the world's information and make it universally accessible and useful. Like many of today's high-tech companies, Google requires an enormous amount of electricity to power the computers and servers it uses to run its business. The company wanted to find a way to reduce energy costs at its Mountain View "Googleplex," as well as make a statement in support of clean energy.
Unlike the typical "big box" buildings found on most high-tech campuses, Google headquarters features structures with unique configurations, sharp angles, and other architecturally unusual design elements.
The Smart Solution:
Intelligent use of available mounting surfacesBecause of the nontraditional design of the Google buildings, the EI Solutions team had to take a nontraditional approach to engineering the company's solar power system. To maximize energy output, the team assessed every available surface on the Google campus for its viability to hold solar photovoltaic (PV) cells. Eventually, more than 197,000 square feet on top of existing buildings and new parking lot shade structures (designed especially for the project) were fitted with cells using customized mounting hardware. To help reduce the cost of such a large installation, plus simplify any future maintenance needs, EI Solutions used one type of PV module in all arrays.
To further optimize the Google system, EI Solutions also closely examined the company's electricity usage patterns, available financial incentives, and the amount of sun received at its Mountain View headquarters.
By building the largest solar power system ever installed at a single corporate campus, Google will save more than $393,000 annually in energy costs — or close to $15 million over the 30-year lifespan of its solar system. At this rate, the system will pay for itself in approximately 7.5 years.
Hybrids will get a charge out of the Energy Innovations carport at a Vacaville, California, park-and-ride lot with plug-in chargers.
Whether this was prompted by the recent passage of pro-solar power legislation in California or not, it will be one of the largest corporate solarinstallations, and is expected to result in almost $400,000 in annual energy costs at today's rates and is expected to pay for itself within 7.5 years.
"Absolutely brilliant: Parking lots covered with solar panels, which generate electricity while providing shade for cars. Last year, I appropriated the term breathtaking inanity (the new irrational exuberance). This year, perhaps a more positive phrase is in order, “breathtaking ingenuity.” "
Just an interesting thought.
Monday, September 22, 2008
Sunday, September 21, 2008
Concrete consumes so much material for its construction (cement, water, aggregate, steel, wood, formwork) and its reusage is low percentage from its original product. This does not really create a well closed loop.
the same goes for wood also, since reusage of the wood cannot create as well as steel in the original product. Glulam helps, but with wood, it seems all you can do is mitigate your consumption as well as being more efficient with milling. This does not really create a well closed loop.
Steel is not the perfect answer, with the demand of steel construction and building lifespan not correlating, it is the best of the three, I believe. Hopefully, in the future, more questions will be asked or answers be revealed to create a closed loop system either ameliorated conventional supplies, or new materials will be introduced.
Thursday, September 18, 2008
In an article by Nature (http://www.nature.com/climate/2007/0707/full/climate.2007.22.html), a scientific journal for the Nature Publishing Group (NPG),
it talks about how IPCC are quick to blame climate change is attributed by human activity and how the 2007 report specifically is a departure from earlier reports.
The report claims that the current change in global surface temperature due to CO2 is approximately 3ºC, which is the same as the US National Research Council panel said in 1979.
The article also talk about the reports using "uncertainty estimates" can lead to uncertainty global climate model calculations. The report has multiple runs of the climate models with modeled temperatures results that basically "gives a false sense of certainty that [is] achieved."
Alright I have written too much already.
What I basically want to say is that it is terrible that the scientific research has become more or less biased or even political. Depending on which media you go to, they have their own assumptions and "evidence" for it. It is sad when with research regarding global warming now, there's not one answer.
The second piece made me feel a bit more optimistic about our oil situation. If we find the right alternative, I agree with the author that oil will become as obsolete as whale blubber.
Tuesday, September 16, 2008
Monday, September 15, 2008
As a side note to one of last week's class discussions about the difficulties on convincing society about the "green" movement. I happened to come across an article in this week's TIME magazine about another facet of this issue. It is an interesting article that points out the many companies that are claiming "green"/"sustainable"/"energy-efficient" products and services are not really doing anything significant. The author, Bryan Walsh, terms this problem "greenwashing", where they mislead customers about the environmentally-friendly advantages through various marketing strategies. So there are websites such as www.greenwashingindex.com and www.terrachoice.com, which are posts by consumers about their research on various products, and which ones are actually producing benefits. According to the second website, www.terrachoice.com, the "six sins" of greenwashing are "hidden trade-off", "no-proof", "vagueness", "irrelevance", "lesser of two evils", and "fibbing". One of the many examples is how a company can claim their paper towels are produced from "sustainably-harvested forests" but spends so much money and energy (CO2 emmissions) to ship and transport it. I just thought it was interesting how there are various factors involved in encouraging sustainability to the general society.
Sunday, September 14, 2008
Growing up in Thailand I remembered our family never having to buy rice, consider rice is the largest consumed calorie source in every meal. We would eat rice along with our meal at least two times a day, lunch and dinner. We were very lucky to have a grandfather that own and run rice farm. By supporting the local economies, the rice, after harvested were then sold at the town market throughout the year. As for the husk and the bran layers (which removed from the rice grain), some portion of the husk were use as food source for cows and water buffalos. The rest of the husk were treated as fertilizer or sold to the mushroom farm. As for the bran layers, were fed to the livestock such as pigs, chickens and ducks. This is consider as waste as resource. Since my grandfather past, all his properties were then divided to all of his children (eleven of them including my mother). Part of the rice field are now an alcohol brewing factory, thank to all of my uncles’ contribution to the social capital gain and so much with the cultural preservation. At some point when I go back to Thailand, I would have to buy rice to eat but I may not have to pay for the alcohol.
If anybody would like to read up on other culture preferably Thailand, I would suggest checking out Thai-blogs on website below. The blogs was written by a gentleman name Bill Grimson. Bill is an Australian man when to Thailand back in 1977 and fell in love with the people and the culture. The particular part of Thai he is talking about is called Issan which is northeast of Thailand, the same area I came from. In his blogs you will see where he talks about social equity, community, fundamental needs, cultural preservation and more…
Saturday, September 13, 2008
Let's say there's a small rural town that has maintain its traditional culture, structures, business, etc., and has reached national attention as a tourist attraction its preservation. A need to preserve the cultural diversity because of their knowledge of the land, it's ability to self-sustained, but primarily respecting its right as a culture to survive in regards to equality. This in turn, is supported by ecotourism, which is the preservation of original culture and environment in regards to tourist revenues. This is an example of Positive Feedback Loop by maintaining a specific culture helps its economy. Let's also say that our favorite candy, Reese's, was building a factory near the town. This has brought a decrease in tourism due proximity to the town and the air quality in the region has decreased as well. People in the town are now working in the factory and leaving their traditional ways of living. In regards to household economics, If we know that the candy comes from that factory, and we buy it, it is a shift from our values (slowly diminishing the town's culture) of what we feel is right. Does this then show a negative negative feedback (the growth of the factory thrives, the less the town thrives)?
Thursday, September 11, 2008
Wednesday, September 10, 2008
For those of you who do not know, the Appalachian Trail was the first National Scenic Footpath. The trail runs from Georgia to Maine through the Appalachian mountain chain; crossing through a number of national, state and local parks as well as small towns along the way. The Appalachian Trail Conservancy maintains the trail and keeps it hike-able. In the southern region of the Appalachian Mountains there are few places where one can actually get a decent view from the mountain top you just climbed up because of the density of foliage. In the few places where there are balds (grassy tops), those stretches of trail become the most heavily travelled. The 12 mile stretch from roan mountain, TN to US 19E is the longest stretch of balds on the east coast. Just down the mountain is the city of Roan Mountain, TN. The point I am trying to make is that perhaps the strategy of goat grazing is related to supporting struggling mountain towns that rely heavily on tourism to attract business. In turn, if berry bushes are encroaching on the southern Appalachian balds then less people will visit the balds, and therefore local mountain businesses that rely on tourists money will struggle even more.
Sunday, September 7, 2008
Earth consumptions : .79 earth
Carbon footprint: 6.3-----------------Country Avg. 14.6
Food FP: 6.8-----------------Country Avg. 15.3
Housing FP: 6.3-----------------Country Avg. 6.7
Good and Services FP : 11.4-----------------Country Avg. 14.7
So true systems thinking actually takes all the disciplines (not just design or construction or engineering, but nutrition and medicine and education, too) and puts them together instead of analyzing each one independently...what a novel thought!
Monday, September 1, 2008
This system focuses on how the think being studied interacts with the other constituents of the system. Insects damaging the crops seem to be the big issues to the crops agriculture. By spraying pesticide intended to solve the problem actually make it worse because the way its unintended side effects change the system end up exacerbating the problem. Pesticide might slow down the growth of insect type “A” but eventually lead to greater number of insect type “B” because insect type “A” is no longer controlling the numbers of insect “B” to the same extent. My solution is to spray pesticide intended for insect type “A” on the first crop season and then on the following season, we’ll spray pesticide intended for insect type “B”. In this case we will eliminate both types of insect. Then again, how would pesticide affect the water and soil and the environment.
Saturday, August 30, 2008
Also, we talked about the ecofootprint quiz. Here's the link: http://www.myfootprint.org. Take a few minutes and do your own. We'll take a few minutes in class on Wednesday to discuss where we all fell. I'm sure it will be surprising for most of you. Also, if you are not a native U.S. citizen, do your footprint for your native country as a comparison. It will be an interesting comparative.