A review of the environment and power series

Here I would like to review the series and look at the way people commented the individual posts, before concluding with a few lines about the experience.

Renewable energy renewing the Earth

In my first post I introduced the idea of environmental cost. This was the measurement that I wanted to use to address the issue of pollution, and more specifically that produced through energy use.

I tried to avoid the term ‘clean energy’, as I feel this overlooks certain aspects of all forms of production. Modern solar panels for example may provide clean energy from the sun but they themselves present issues during their manufacturing and disposal phases.

Another point I hoped to raise is that the problem needs to be viewed from a realistic standpoint. We are not all going to convert to a zero emissions life overnight any more than we are going to return to being a hunter and collector society that lives in caves. The world will continue to operate more or less as it does now, and it is through this framework that the problem should be addressed.

The first comment I received contained the following line from Vicky, and it really is worthy of note:

“I believe that each of us can help a lot in improving the health of our planet, the only problem is that we have great vision but no action. Why don’t we act first and through that action we start making some vision?” This is echoed by the quote from Gandhi that I used to open the first post, and could really be a manifesto for the series.

The second post was about cutting fuel emissions from transport systems, and it received a couple of interesting comments. Darci commented that even cutting emission by 30% (referring to the commercial use of Kites on ships) would be a great improvement, and I must agree with her. Neil’s comment included the following lines that are worth thinking about:

“It seems to me that over the past decade the builders of internal combustion engines have made some great breakthroughs in generating more energy from their engines with the same amount of input and we have seen the KW output of many engines jump significantly. It would be good to see these same producers working backwards to produce smaller engines that produce an adequate amount of power from a minimal amount of fuel.” An extremely astute comment I would say.

Post 3 entitled Cleaner Energy Production was one of the most commented of the series. I think this is because the technology described is on the verge of becoming commercially available, and because solar panels are now an every day piece of urban furniture.

The article also provoked a series of comments lead by the following from Custom Items:

“These are a great bunch of suggestions. It’s really sad that we all what we need and what is right but can’t do anything about it. I’ve always felt that the government was taking sides with the big corporations. In this world of ours, money and power talks.”

This obviously provoked discussion with the other commenters in agreement with the sentiment, some seeming to suggest that development is hindered by large corporations and governments and that although the people recognize the need for change they may be incapable of achieving it.

Not all doom and gloom though and I for one am optimistic and agree with some of the brighter outlooks expressed.

Post 4 was all about a report published by the Royal Society for Engineering in which they looked at possible ways of artificially cooling the planet. Again many comments were left, a couple of which raise issues that should be addressed.

The post involves the problematic debate around global warming. Two comments really show the diversity of belief that surrounds the issue, even though not taking radical standpoints. The following comment was made by Shane Ryans:

“In my opinion the earth has gone through many different cycles, throughout its lifetime. The earth has gone through ice ages so why would there not have been, for lack of a better word, “hot” ages. What makes today so different from the past. We are just going into yet another cycle. Now that being said, I am sure that we as a race have made the circumstances different and added to the problem and sped up the process, with all the different chemicals and air pollutants we have introduced into our environment. I do hope that scientists can come up with a viable solution”.

Although Shane does not make the line that humans do not contribute to the problem, many people do, and go on to argue that the greenhouse effect does not exist. From their point of view any change is merely a product of nature. People that espouse this line have powerful lobbies, and invest large sums of money to promote their line to the point that the debate has become a business, and dirty tricks and smear campaigns abound. See this page on Wikipedia for plenty of information and links to further reading

Returning to the post a second comment made by Virtual Stock Trading runs as follows, the edit is mine but you can see the original comment where it was left:

“I don’t think there is any doubt on global warning…….. But the process is very gradual and will not significantly affect anyone living today.”

I cannot agree with the final line. Global warming is affecting communities all over the world as we speak. Sea levels are rising and threatening the very survival of some of theMaldivesIslands, flooding is rife in low-lying countries and London has to thank the Thames Barrier to avoid Joe Strummer’s classic prediction. And a simple look at its use tells a story, it was closed four times in the 1980s, 35 times in the 1990s, and 80 times since 2000.

Post 5 was a review of inventions and power generating machines that profess to generate free or pollution free energy. It did not generate the number of comments that the previous posts managed, but Samantha returned to the non support from governments and big business argument once more:

“Actually, there are so many inventions nowadays that can actually lessen our cost and pollution as well. However, they are having problems of getting support from our government. Of course, this body is after of money from businesses like big petroleum companies.”

From a personal point of view writing the series gave me great satisfaction. I have all the articles on a single file and it looks like a small book! I wrote 2 of the articles before posting the first, as Christopher suggested, and it was a very good idea. I wanted to reply to each comment and that took a lot of time, so I found it quite a strain researching while the series was running (each post took about 6-8 hours to research and write).

I found all of the comments interesting, and thank everyone who took the time to post. I did not have the problem that I sometimes have of people missing the point. I do not like to express my arguments too openly and rely on a bit of intuition, and sometimes this is lacking and I find comments that express the opposite of what I wanted to convey. This was not the case during the series, and that pleases me.

I can definitely recommend the experience, and will undoubtedly write another.

UPDATE: Jonny has compiled a fantastic PDF publication of his series which contains every article in the series, and the responses each article got. You can view it on the blog here Can We Improve the Health of the Planet? A series by Jonny Hankins.

Nanobots – The future in Nanotechnology

This is Technology Bloggers 150th article 🙂
Well done and thank you to all our brilliant writers (Hayley included), as well as readers and commenters who have helped us get here!

A fraction of the ever-expanding field of nano-technology, nano-robots, a.k.a. nanobots, hold some of the most promising possibilities in the fields of technology, engineering and medicine. They also pose some of the most complex hurdles, such as automation, replication, control and finding viable energy sources to enable movement.

The Nano-Scale

Nanotechnology involves the study and micromanipulation of anatomic particles up to 1 nanometer, with scientists working to develop nanobots in fields less than 100 nanometers in size. Transmission electron (TEM), scanning electron (SEM), scanning tunneling (STM) and Atomic Force (ATM) microscopes are large, powerful machines that make all aspects of nanotechnology, including nano-robotics, possible.

Nano-microscopes allow researchers to isolate and observe single molecules, including chemical reactions that occur upon moving, eliminating and rearranging molecular structures. This base knowledge is essential to understanding, creating and ultimately finding solutions so that nanobot technology will reach its full potential.

Bottoms Up

Up until recent years, the development of nanotechnologies maintained “top-down” construction. The advent of “bottom up” creations on the nano-scale provide scientists the ability to create smaller objects; in addition, components can be “grown” to allow greater adaptation to specific environments or inclusion of specific properties.

Scientists are literally able to “grow” carbon nanotubes and “string” together nanowires, creating desired properties such as hastening conduction or reducing heat output – properties that make for tiny, efficient particles. In theory, by building a nanobot from the bottom up, scientists begin to find solutions that allow for greater control mechanisms and possibly self-replication of the nanobot.

A carbon nanotube

Carbon nanotubes – building nanotechnology from the bottom up.

The greatest benefit of working bottom-up is that, rather than altering materials to work in a desired fashion, scientists build nanostructures and nanobots with proper compounds from the outset.

The Present

Although practical applications in medicine and technology have yet to be fully realized, nanobots are no longer figments of science-fiction imagination.

Lack of autonomy, largely associated with insufficient or unrealistic sources of energy, leaves a large barrier to the potential uses of nanobots. Batteries and solar sources are impractical due to size and, although a scientist can guide the nanobot with the use of magnets, they are not ideal. For example, a physician using a nanobot to treat a patient would need to maneuver the nanobot from outside the skin while also observing inner structures of the body.

Within the past year, scientists announced the creation of a nano “electric motor.” Utilizing principles of adsorption, a molecule attaches itself to the outside of a piece of copper; an STM probe focuses electrons onto the molecule, providing a source of energy and means to control direction. The large, cumbersome STM still makes this impractical in many ways; however, scientists are able to study this single motor and hypothesize ways to alter this and thus to apply it to nanobots.

In addition, micromanipulation made possible by electron microscopes allows for “DNA-walkers.” Essentially reprogramming a portion of a DNA strand, “molecular robots” or “spiders” walk autonomously; ultimately, scientists hope to further develop this technology, creating nanobots that fix genetic diseases.

The Future

Many scientists believe self-replication, most likely by programming the nanobot to micromanipulate surrounding atoms to create duplicates of its self, is essential to the realization of the many medical and technological applications.

In addition, a truly autonomous nanobot would be able to recognize, react and/or adjust to varying environmental conditions, including the presence of other nanobots; scientist could also program them for molecular assembly.

Many believe nanobots will allow for precise diagnostic capability and treatment of diseases such as cancer, as well as genetic disorders. Advances in communications, green energy, computer electronics and semi-conductors appear limitless.

Summary

Although still in its infancy, scientists across many fields hold much promise for nanobot technology. An autonomous nanobot, able to adapt its environment and self-replicate, could be the key to early detection and the cure of many diseases; in addition, nanobots will play an important role in sustainable or renewable energy sources, engineering and advancing computer technology. What do you think?

For further information check out the article on nanobots over at MicroscopeMaster. Links in my bio.

Google prunes some of its branches

It is that time again at Google when it has to prune some of its various branches. Since Google co-founder Larry Page took over the reins as CEO in April last year, Google has been reducing and trimming its projects to renew and regain focus.

Google has come under investor scrutiny as it is facing increasing competition from both Apple and Facebook.

This spring cleaning is part of the various cost cutting and refocusing efforts. In the latest cleaning exercise announced a few weeks ago, Google will be pulling the plug on seven of its projects.

1. Google Knol

Google launched Knol in 2007 to help improve web content and as a challenge to Wikipedia that enabled experts to collaborate on in-depth articles. Knol will be available till April 30, 2012, to enable users to download their Knols to a file and/or migrate them to the WordPress platform. After that till October 1, 2012, Knols cannot be viewed but users will be able to download and export content. After October 2012, the Knol content will no longer be available.

2. Google Gears

Google has closed the Gears browser extension for creating offline web applications and stopped supporting new browsers in March this year. From December 1, 2011, Gears-based Gmail and Calendar offline will not work across all browsers, and Gears will not be available for download from late December this year. Google announced that this is part of their effort to help incorporate offline capabilities into HTML5. Users can access Gmail, Calendar and Docs offline in Chrome.

3. Renewable Energy

Google has abandoned its ambitious plans to make renewable energy cheaper than coal. Google had started this project in 2007 as a means on driving down the price of renewable energy with a strong focus on solar power. Google announced that the head of the project, Bill Weihl (William E. Weihl) has left the company and it believes that other organizations were in a better position to take its efforts to the next level.

4. Google Wave

Google has earlier stopped further development on Google Wave. Now it has announced that as of January 31, 2012, Wave will be available as only a read-only version and users won’t be able to create new ones. This will be completed closed on April 30, 2012. Users can transfer individual waves using the existing PDF export feature.

5. Google Search Timeline

Google will be removing this feature that displays a historical graph of results for a search query. Users will now be able to restrict any search to particular time periods using the refinement tools on the left-hand side of the search page. Uses who wish to view graphs with historical trends for a web search can use Google Trends or Google Insights for data since 2004. If you need more historical data, the “Ngram Viewer” in Google Books offers the same information.

The Google Trends Product Logo

6. Google Friend Connect

Google Friend Connect, which is a social feature, will be discontinued from March, this is because Google wants people to start using the Google Plus social network instead.

7. Google Bookmarks

The feature will become unavailable from December 19, 2011. This enabled users to share bookmarks and collaborate with friends. The existing bookmark Lists will be retained and labelled to make it easier to identify. The other features of the Google Bookmarks will keep on functioning. The change won’t affect the non-English users as it was an English only feature.

This spring cleaning is only a sign that Google knows that it currently faces big competition, so it needs to make sure that it discontinues disused/inefficient services it provides.