Nanotechnology Lecture Invitation

On Tuesday I am participating in a lecture about nanotechnology at the Bocconi University in Milan.

Nanotechnology Lecture Poster

Nanotechnology Lecture Poster

This is not a subject that is new to this website as a quick search demonstrates. In May of 2011 Hayley asked the question of whether nanotechnology research is safe. It is a well written and commented post that raises some critical questions about the ethics and practices surrounding technology that is already changing our lives and has incredible potential in many walks of life.

Hayley continued her thread in January of this year with an article about nanobots, the future of nanotechnology. Here she describes the bottom up approach that the technology is taking on, underlining the importance of self replication.

In March I followed up on these articles with a post about how nanotechnology procedures are regulated, based upon the National Research Council’s report of the same month. Many similar issues are raised in the report about environmental damage, possible risks to health and governance.

On a lighter note in April I posted about nano-art and again in May about how nanotechnology is making waterproof electronics a reality.

So all of this leads me on to Tuesday’s lecture. The main speaker is Michael Bruch, the Head of R&D and Risk Consulting at Allianz Global Corporate (the insurance company). He is going to talk about the role of insurance in innovative technologies, with a focus upon nanotechnology.

If we read the articles linked above we understand that this research is fraught with risk, and so development companies have to take out insurance against losses, but how can the level of risk be calculated with such an unknown and potentially powerful product? What might the implications be for the global financial system if something goes catastrophically wrong?

Well if anybody can tell you Mr Bruch can.

The proceedings will be streamed live through the Bassetti Foundation website, but I am travelling half way round the world to be there in person. It will also be available later on podcast, and I think will be a very interesting debate.

I will let you know next week how it all goes. Invitation enclosed.

Hurricanes, Natural Disasters and Science

EDITOR NOTE: Congratulations to Jonny, this is his 50th post on Technology Bloggers! Feel free to thank him for his fantastic contribution to the blog with a comment 🙂 – note by Christopher

This is my 50th post and I am very pleased, so once again I would like to try to propose something a little different.

This week I have experienced my second hurricane, Sandy passed through Boston where I currently reside, tearing up trees, bringing down power lines and bucketing tons of water upon us. The disaster seen in New York was not replicated here, but we are still in a state of emergency with millions of people without power.

One interesting aspect about the whole affair was watching the state prepare for something that it could not really fully understand. The authorities did not know where the hurricane would hit land, or how much damage it would do. They had to rely on scientists’ models and experience to make plans and try to save lives and limit damage.

Car crushed outside

A car crushed by a fallen tree on our street

Which all brings me on to the topic for today’s post, scientific advice.

Another disaster is in the news this week from my other home country, Italy. 6 of Italy’s leading scientists and one ex government official have received prison terms for offering falsely reassuring advice immediately before the 2009 Aquila earthquake. They were each found guilty on multiple counts of manslaughter after more than 300 people died in the catastrophe. The BBC has a short article on the proceedings and sentence here.

All members of the National Commission for the Forecast and Prevention of Major Risks, they were accused of having provided “inaccurate, incomplete and contradictory” information about the danger of the tremors felt ahead of the quake. There had been a series of smaller tremors in the weeks and months preceding the larger one on 6th April, but the Commission had suggested that this did not mean that a larger quake was on its way.

They were wrong however, but many members of the scientific community have come to their defense, stating that earthquakes are inherently unpredictable, technology does not allow accurate prediction, and that a series of tremors such as those seen in Aquila only lead to a major quake on about 1% of occasions.

The Scientists found guilty are amongst the most respected geologists and seismologists in Italy, and this leads me to ask several questions. Who can we ask for advice in order to prepare for disasters if the best scientists are not able to provide the answers? What effect will this ruling have upon the scientific community and their willingness to give advice on such matters? Can we hold scientists responsible for such events? What effect does politics have on their decision making and advice to the public?

Here during hurricane Sandy several local government officials were criticized for not implementing evacuation procedures that were called for by central government upon advice given by scientists, and I would ask if the fact that there was loss of life might have been avoided. We all knew it was coming!

These points above could also be made about other problems, the obvious one being climate change. There are several articles on this website that address this issue including my own ‘Health of the Planet‘ series, but once more the entire subject is bogged down with political versus scientific arguments.

We are talking about risk here, and risk is not an easy thing to assess or to communicate. The Aquila scientists may argue that the 1% risk is minimal after a series of smaller shocks, but the risk may also be greatly magnified from a starting point of no shocks. A great deal is in the phrasing, and phrasing may be political.

Last year, here in Cambridge Massachusetts, I interviewed our local Congressman, Michael Capuano on the problems of making political decisions regarding science, and you can see a transcription here if you like. It makes for interesting reading.

A Possible Breakthrough in Energy Storage?

The Institute of Mechanic Engineers says that turning air into liquid may provide a solution for energy storage. At present most energy is stored in batteries, but battery production and disposal is an extremely messy and polluting affair, and so experiments are underway to look into this alternative.

One of the problems particularly with renewable energy sources is that energy is produced at times when it is not needed. The system cannot just be turned on or off, so this excess energy must be stored. Scientists believe that with improvements the liquid energy solution could be 70% efficient, less than batteries but at a much lighter cost to the environment.

To give you an idea of how the process works, it follows a number of stages:

“Wrong-time electricity” is used to take in air, remove the CO2 and water vapour, which would otherwise freeze solid.

The remaining air, mostly nitrogen, is chilled to -190C (-310F) and turns to liquid – this provides a compact storage medium that can later draw energy in the form of heat from the environment.

The liquid air is held in a giant vacuum flask until it is needed.

When demand for power rises, the liquid is warmed to ambient temperature. As it vaporizes, the expanding gas drives a turbine to produce electricity – no combustion is involved.

One particularly interesting thing about this development is that it comes out of a garage in England.

Peter Dearman in his garage

Inventor Peter Dearman in his garage lab

Peter Dearman made the discovery while looking for a way to power his car using air. I have written about these types of experiments before in my Health of the Planet series. Take a look at this video on Youtube to see Dearman at work. Real Chitty Chitty Bang Bang stuff.

The BBC also has an article in its Science and Environment section that you can read here.

One conclusion to draw is that world changing technological innovation has to start somewhere, and it is not always in a sterile lab. Sometimes it is in a garage behind a house in Hertfordshire.