Read + Write + Report
Home | Start a blog | About Orble | FAQ | Blogs | Writers | Paid | My Orble | Login

Whales Advise Wind Turbine Engineers

September 15th 2008 16:02

Everyone is interested in renewable, alternative sources of energy currently. No one wants to continue to pay high gas prices or spend exorbitant amounts of money for electricity. While a combination of alternative energy sources seems to be the answer, one company is trying to increase the efficiency and output of wind energy.


Wind turbines have their own set of problems, like everything else. One is that even though the blades of the turbines are supposed to catch the wind to turn the turbine to create energy, they don’t always do so. Sometimes, if the wind fails to move across the blades in the correct way, the blades can’t catch it and they slow or stop. This is slightly similar to a tire on a wet or icy road. If the tire has no tread, it tends to slide across the road rather than drive on it. If the tire is new and has lots of tread, the tire can grip the road and allow the driver a modicum of control. By looking at whales and how their fins are formed, scientists have developed a new way to form the blades for wind turbines.

Whales, in order to control their movement through the water, have large bumps on their fins. This forces the water to move across their fins differently, allowing them a type of “grip”. Wind blades can be fashioned in a similar way, by creating, not slick, but bumpy blades. These, so far, have been proven to catch the wind better and allow the angle of the blade to be increased by 40 degrees if necessary before they begin to slow or stop. Although the first prototypes are going to be made for ceiling fans which will be 24 feet across, the turbine blades will need to be 400 feet across. If the ceiling fan prototype works as scientists expect, new wind turbine blades will be next on the market. Although some doubt much more efficiency will be gained by these new blades, they may be surprised, and even a small increase in efficiency could be worth it financially.


Source: Discover, September 2008
109
Vote
   


Beaver Extermination in Argentina

September 12th 2008 16:00
Poor little beavers, they thrive and die by the will of the Argentinian government, so it seems. In the 1940s, 50 beavers were introduced into Argentina from Canada to create a fur industry. At the time, Argentina was trying to cash in on the expensive beaver pelts to generate export revenue for their country. Unfortunately, fur went out of style and the beavers were released from monitored beaver farms into the wild.

Beavers have never populated Argentina and therefore, they have no natural predators. Because of this, the beavers reproduced at an unchecked rate and now there are 100,000 of them. This has led to the unrestricted destruction of the country’s rivers and forests, creating eyesores and an eco-disaster. So far, 16 million hectares have been destroyed and there isn’t any hope that the trees will revive. Unlike North American trees, when trees in South America are chopped down by a beaver, they don’t grow back.

Although these beavers are in the very southern section of the country now, the government fears they will begin to move north to destroy forests in other regions. To prevent this, the government has put forward a plan to destroy all the beavers through aggressive actions using traps, dogs, boats etc. Although some with the project believe fully it can work, others aren’t so sure. After all, if you only leave two beavers, they will repopulate the area and revive the current problem.

Many people believe introducing an animal native to another part of the world can be done repercussion-free, but it simply isn’t true. NOAA, or the National Oceanic and Atmospheric Association, believes 50,000 foreign species are in the U.S. strangling out the native ones. In fact, native species now comprise 42% of the species on the threatened and endangered lists. Invasive species, as of 2000, had caused $137 billion in damages to U.S. ecosystems and agriculture. With numbers and problems such as these, the best policy seems to be one of non-introduction of foreign species, no matter how cute or potentially profitable they seem.

103
Vote
   


World Hunger and the U.S.

September 11th 2008 16:00
People often rail against the U.S. for not helping the starving people of the world enough. Some even go so far as to say it is the U.S.’s fault that those overseas are starving. Many of these people, however, rarely list off facts of what the U.S. is actually doing and how much of our tax dollars are pouring out of the U.S. to help those in need. In an attempt to respond to this, I have done a bit of research and found some interesting numbers.

On July 16, 2008 the U.S. House of Representatives Committee on Agriculture issued a press release stating that the U.S. donates around 58% of the total monies given to global food aid. This means the U.S. alone contributes more than all the other countries in the world combined. As of 2007, this equaled more than $1.78 billion. In 2008, $1.53 billion was earmarked with an extra $1.2 billion appropriated. Thus, in 2008 alone, Americans will donate $2.73 billion of their tax dollars to help those in foreign countries.

But what exactly is being done with this much money? According to the administrator of the Foreign Agricultural Service, Michael Yost, the U.S. began 21 food for progress (FFP) programs in 15 countries in 2007. These programs gave $120 million to families in those countries. In the year prior, 2006, the U.S. donated 4,400 metric tons of food to 658 elementary schools in Honduras to feed 32,700 children. This equaled $3.4 million given in food. But that’s not all. Food was also given to 7,000 pregnant women and mothers as well as over 13,000 children up to age five.

Food isn’t the only thing that the U.S. gives, however. It also cares about the education and general lives of children and families. For example, in Honduras, the U.S. paid for 120 gardens and fish ponds, monetary aid for schools, teacher training, sanitation systems and infrastructure of 77 of the top 100 poorest schools. The U.S. is still working at the final 23 schools to improve them in the categories listed.

Guatemala is another country the U.S. has helped. In 2006, the FFP program started a credit program using 8,000 tons of U.S. soybean meal and 2,000 tons of U.S. tallow. This brought $3.2 million into the country in revenue. The money from this program was then put into creating a program that would give loans to women so they could start their own business and have more money to support their families.

It is estimated that in 2009 the U.S. will give $12.5 million to Iraq and Afghanistan for agriculture, volunteers and livestock management. This is important to countries such as Afghanistan where 80% of the population deals with these types of jobs. In Iraq, farming brings in more money to the country than any other trade, except one. A new program established by the USDA called “Stocks-for-Food” has created $120 million and allowed $100 million to be added to The Emergency Food Assistance Program.

Africa also gains from the U.S. President Bush recently made an extra $200 million available for African aid. This is in addition to the $850 million given in 2008 and the $395 million that is to become available in 2009.

With numbers such as these, it would seem one could not help but agree that the U.S. does more to help those around the world than anyone else in the world.

120
Vote
   


Environmental Questions?

August 15th 2008 05:19
Welcome to what will hopefully be an interesting and informative site regarding current environmental topics. If you have any questions or would like to see a post regarding something specific, don't hesitate to let me know and I will see what I can dig up for you.

Thanks for your interest and I hope to see you back here soon.

Also, if you are interested in science and technology, you might enjoy Biology News. If health and medicine is your thing, try my Diet and Health blog. If you are a student, scientist or researcher, you might find Science Stat and its forum useful.

Whatever you like, enjoy!

R.C. Anderson
54
Vote
   


drug testing for politicians?

June 16th 2007 07:13
There is a lot of talk at the moment about drug testing in sport. The problems faced by several West Coast Eagles players in the AFL has lead to the Federal Government demanding that all sports get tougher on testing their players for illicit drugs. They want players being tested anywhere at any time. This means that even on your holidays, when the drugs will have no affect on your game, you can get a knock at your door demanding a urine sample.

As the papers and most sports people have pointed out, this is typical Howard Government stuff, pulling out the drugs bogey-man to try to gain votes in the election (they used it against the Greens in the last Federal Election in 2004). However, Essendon player James Hird asked a good question, why aren't we testing our politicians?

Now I'm sure Hird intended this as an off-hand remark and usually it would stay that way, but I started thinking more and more and feel that this is a good question. I mean these people make decisions which can sometimes mean life and death to people, they are decisions with far greater consequences than whether Ben Cousins played last years Grand Final high.

I would even go further to suggest that testing should be made for alcohol as well. I would never be allowed to go to work under the influence of alcohol but how many politicians have a wine or two during lunch at parliament house? Many will remember Steve Bracks' famous "Eddie Eeels" speech at the Heineken Golf Open (he was actually congratulating South African golfer Ernie Els). It also might explain what's going on in Bill Heffernan's head.

As someone who hopes to have a seat in parliament one day, I would be happy to subject myself to drug testing if it meant we could be sure that governments do not make life or death decisions such as the invasion of Iraq or ignoring the plight of refugees under the influence of anything.
75
Vote
   


Get Up!

June 7th 2007 02:59
A fantastic new campaign from activist group Get Up! Get Up! will be providing ordinary people the chance to create their own political ads in the lead up to the Federal Election.

The major party spends millions on advertising to try and convince us to vote for them. Here is the chance for ordinary Australians to get their own views across. I'm just disappointed I can't enter because I'm part of a party myself.

Here is a great example already up on their website.

John Howard in "Trust me..."
93
Vote
   


Rudd vs Howard

May 23rd 2007 07:30
Many of my friends have been asking me whether I think that Kevin Rudd will be a good alternative Prime Minister to John Howard. I have told many that I am still reserving my judgement but the more I see of Rudd, the more concerned I am.

Yesterday Rudd announced that the ALP would not repeal the Howard Government's controversial policy of Voluntary Student Unionism which outlaws universities charging students a fee to assist paying for student services.

Now this idea may make a lot of sense, however consider this: with student unions weakened Howard was also able to push through a 25% rise in University HECS fees. This means that even a degree at the lowest HECS rate, like a BA, went from $3768 a year to $4710... a rise of $942. Sort of makes the $130.50 I paid to the Deakin University Student Union look kind of insignificant doesn't it?

And yet the major parties are telling us that we're better off? You're kidding me...

This is one example in a long line of policies that Kevin Rudd has introduced which move the ALP closer and closer to the Liberals. Here are some more examples:

CLIMATE CHANGE:
Howard: invest in Nuclear Technology, a technology that would not be available in Australia for another twenty years...
Rudd: Invest in "clean coal technology" a technology that doesn't actually exist.

IMMIGRATION:
Rudd/Howard: An "Australian Values" test for newcomers to Australia.

URANIUM:
Howard/Rudd: support increasing the number of Uranium mines in Australia, mines which often displace Indigenous People from their land.

FORESTS:
Rudd/Howard: Continue the destruction of Tasmania's old growth forests, even though it is damaging Tasmania's essential tourist industry.

And countless other policies. Maybe the question shouldn't be "Will Rudd be a good alternative Prime Minister?" it should be "Will Rudd be an alternative PM at all?"

It is interesting to note that in elections for the Monash Student Union, the Labor Right (Rudd's faction) run on the same ticket as the Liberals. Maybe they should do the same in Canberra too...
93
Vote
   


We need to wake up...

February 2nd 2007 04:41
I haven't written in a very long time. The State Election occupied an enormous ammount of my time and I have been taking a break for a fair bit of time. I will look to build this blog up again in preparation for the Federal Election, probably expected to be held around October this year.

The big issue this week is Global Warming. An Inconvenient Truth was released on DVD in Australia this week and a UN study is expected to be released showing that we are on the road to an enormous disaster.

Australia's answer to this crisis is to introduce nuclear power. It is important to realise though that nuclear power cannot be operational in Australia for another twenty years, by which time we will have serious problems. The Howard Government still refuse to sign the Kyoto Agreement, committing to reductions in our greenhouse gas emissions. The government claims Kyoto is not working and we need a new agreement. I agree with this, and Australia can play a leading role in this agreement, but we need to sign Kyoto for us to be able to have any involvement in future agreements.

Meanwhile the Labor party claim that if elected they will ratify Kyoto. I am sceptical of this though. In the US, several states have gone against George Bush and ratified Kyoto themselves. Every Australian state is lead by a Labor State Government and so far NO LABOR GOVERNMENT HAS RATIFIED KYOTO. Why is this?

This issue has been concerning me a lot lately. I am beginning to realise that the 2007 Federal Election will be so important for Australia and if the major parties continue to dominate Australian politics, we will see a lot of talk but no action. The following election won't be until 2010, when it could possibly be too late. So the next nine months could be vital to everyone in Australia.

I have been getting a little depressed because I'm coming to the realisation that I could be alive to see the end. But what can you do? You just need to keep working away, make people see what's going on... don't let ANYBODY tell you that global warming is a myth! (I've been guilty of that because I've wanted to avoid fights, but not anymore...) Because the consequences are just too awful.
112
Vote
   


A week in review

October 19th 2006 23:47
It's been a long time since I was last on. My computer went down and it's just taken me until now to get my computer working.

Lots of things have been happening in this time. Monday I heard Kim Beasley finally show some energy and enthusiasm as he tore into the Howard Government over Iraq. Labor seems to have developed several new policies which actually makes them look like a credible alternative (with a few Greens thrown in ... not saying the Greens would automatically side with Labor but God knows, there's little chance we'd be on Howard's side at the moment).

But the big news... boosted by enormous temperatures in October (including 37 in Melbourne) the Howard Government has finally acknowledged climate change. Unfortunately their response has been to look at introducing nuclear power to Australia, which is strange considering we have already established that nuclear power is not economically feasible.

It is understandable though. It is important to realise that the Liberal Party rely on donations from many large companies, including those in the resource industry. Nuclear power, like coal, still relies on buying a constant source of fuel, in this case uranium. This is unlike solar and wind power where once somebody has bought a solar panel/windmill there are no other opportunities to make money. Renewable energy is definitely the stronger option, it just doesn't make money for the people funding Liberal (and Labor) campaigns. In fact, that was one of the key reasons I joined The Greens, they don't take any money from businesses, so they are accountable only to their members and to voters.

The other big news are the new Federal media laws. Until this week a media company could not own a daily newspaper and a TV network or radio station in the one city. Now the floodgates have opened, PBL, owners of Channel Nine have announced plans to buy a major share in Fairfax, owners of The Age and the Sydney Morning Herald. Meanwhile it was just revealed today that News Corp, owners of the Herald-Sun and many other major papers in Australia have bought a 7% share in Fairfax also. There are also questions as to whether News Corp will look to buy Channel Ten also. This is combined with some new rules for the ABC which will require the ABC to show a "balanced" opinion (meaning every criticism of the government must be backed up by a pro-government view). This will certainly lead to less diversity in opinions in the media.

This is why I'm here on the web, trying to get some Green views out there. There is a real feeling amongst educated people that voters would vote Green if they actually knew our policies, it's just sad that so many people aren't aware of them.

So yes, if you have any questions about The Greens feel free to ask me. But it looks like there could be a sad lack of views in mainstream media. Here's keeping our fingers crossed for SBS...
122
Vote
   


Nuclear Power in Australia

October 5th 2006 12:56
I spent the last two days at the RMIT Sustainability Festival in Melbourne. This was a festival organised by the RMIT Campus Greens and the RMIT Environmental Collective. There were many highlights including a speech by Greens' Senator Kerry Nettle but one of the things that stood out to me was a debate they had over whether Australia should invest in Nuclear Power.

Now I thought this debate was so obvious that any intelligent person would know the answer to it, but clearly not, so I'm closing the argument once and for all. NUCLEAR POWER IS NOT THE ANSWER

The National Electric Market Management Co. (NEMMCO) did a study recently looking at the viability of nuclear power in Australia. Basically due to the ammount of power output of a reactor, a large percentage of our overhead powerlines would need to be replaced because they could not take the load. This would cost a fortune, not even counting the man hours involved...

Also, to be viable the nuclear power plant would need to be located in Sydney. This would be electoral suicide for any government wishing to do that!

Plus, even if it was economically viable, it would be at least twenty years before we could see a plant operational. Now, if we are waiting another twenty years to solve our environmental problems, we will be in BIG trouble.

So sorry guys, nuclear won't save Australia...

The important thing to realise is that John Howard and all the pro-nuclear lobbyists know full well that nuclear power is not viable in Australia. Really it is just a smokescreen to justify more Uranium mining in Australia and trading with countries like India, who have not signed the nuclear non-proliferation treaty. And people can argue, we'll make sure that OUR uranium doesn't go into bombs but the fact of the matter is that even if OUR uranium is going into plants it frees up THEIR uranium to go into bombs... you can't win. So we need to cut through the bullshit and look at more important debates, like do we rip up more of our Earth to feed these reactors?

And another question... what happens when India is done with the uranium? I mean, almost one billion people in not a big land area, do they have room to dump their waste? No they don't, they will turn to the people who sold them the problem and say, "Hey! You guys have a lot of desert... pretty stable ground, no earthquakes, how about you bury this waste for us?" And Australia would probably have an obligation to do so.

Now these are just simple arguments for why nuclear won't work in Australia, I could quite happily write another page on why nuclear should be abandoned globally, and people can feel free to comment and request that if they like. Sweden is obviously listening to the research, they have recently embarked on a plan to phase out nuclear power and replace it with renewable energy.

As was said at the debate today: If Nuclear Power is the answer... you really have to wonder about what the question was...
137
Vote
   


More Posts
3 Posts
1 Posts
2 Posts
19 Posts dating from September 2006
Email Subscription
Receive e-mail notifications of new posts on this blog:

R.C. Anderson's Blogs

361 Vote(s)
0 Comment(s)
5 Post(s)
Moderated by R.C. Anderson
Copyright © 2006 2007 2008 On Topic Media PTY LTD. All Rights Reserved. Design by Vimu.com.
On Topic Media ZPages: Sydney |  Melbourne |  Brisbane |  London |  Birmingham |  Leeds     [ Advertise ] [ Contact Us ] [ Privacy Policy ]