Sunny Side Up

July 3, 2014

Nadine May - Solar EnergyThe red squares represent the area that would be enough for solar power plants to produce a quantity of electricity consumed by the world today, in Europe (EU-25) and Germany (De).

Amazing fact/quote: ‘in just six hours, the world’s deserts receive more energy from the sun than humankind consumes in a year.’

From Wikipedia (which gives the history of the associated project plus it’s pros and cons as well as the remarkable graphic above):

“The DESERTEC concept was originated with Dr Gerhard Knies, a German particle physicist and founder of the Trans-Mediterranean Renewable Energy Cooperation (TREC) network of researchers. In 1986, in the wake of the Chernobyl nuclear accident, he was searching for a potential alternative source of clean energy and arrived at the following remarkable conclusion: in just six hours, the world’s deserts receive more energy from the sun than humankind consumes in a year.

The DESERTEC concept was developed further by Trans-Mediterranean Renewable Energy Cooperation (TREC) – an international network of scientists, experts and politicians from the field of renewable energies – founded in 2003 by the Club of Rome and the National Energy Research Center Jordan. One of the most famous members was Prince Hassan bin Talal of Jordan. In 2009, TREC emerged to the non-profit DESERTEC Foundation.”

Official site, for additional info: DESERTEC Foundation.


Apple, Microsoft and Google

June 16, 2014

Interesting and lengthy post by Jon Gruber, motivated by the recent Apple World Wide Developers Conference (WWDC), which discusses Apple’s CEO Tim Cook’s assertion that:

“Apple engineers platforms, devices, and services together. We do this so that we can create a seamless experience for our users that is unparalleled in the industry. This is something only Apple can do.”

Is this true, though? Is Apple the only company that can do this? I think it’s inarguable that they’re the only company that is doing it, but Cook is saying they’re the only company that can.

Apple, Google, and Microsoft each offer all three things: devices, services, and platforms. But each has a different starting point. With Apple it’s the device. With Microsoft it’s the platform. With Google it’s the services.

And thus all three companies can brag about things that only they can achieve. What Cook is arguing, and which I would say last week’s WWDC exemplified more so than at any point since the original iPhone in 2007, is that there are more advantages to Apple’s approach.

Or, better put, there are potentially more advantages to Apple’s approach, and Tim Cook seems maniacally focused on tapping into that potential.


The Pitfalls Of Poorly Reported Science

April 30, 2014

Spotting-Bad-Science

More on the above graphic can be found here, including:

The vast majority of people will get their science news from online news site articles, and rarely delve into the research that the article is based on. Personally, I think it’s therefore important that people are capable of spotting bad scientific methods, or realising when articles are being economical with the conclusions drawn from research, and that’s what this graphic aims to do. Note that this is not a comprehensive overview…


Hunger For The Higgs

February 22, 2014

higgs_boson_explained

I was fascinated to read that (see here):

More than 10,000 people have signed up for an online course to study the work of Nobel Prize-winning physicist Professor Peter Higgs.

The free seven-week course, called The Discovery of the Higgs boson, begins this week and is being run by the University of Edinburgh where Prof Higgs worked when he developed the “God particle” theory.

The course is being run on the FutureLearn platform, a partnership of 23 universities.

The requirements seem quite modest: The course requires a basic level of mathematical skills, at the level of a final-year school pupil. A basic knowledge of physics is helpful, but not required.

Although it’s already started, it may be worthwhile joining if you’re interested in the topic as just 2 hours a week is needed. The link to the course is here.

I’ve previously written about the Higgs here and here (I did academic research in this area for over 10 years before moving to the commercial sector).

Picture credit: LiveScience.


Seeing Is Believing

December 29, 2013

In case you’ve not seen this before, be patient and wait until the end, just 2 mins, and you’ll be very surprised! It shows just how easily you can get (cleverly) fooled.

More on optical illusions here.


Feynman On QM

December 20, 2013

Following on from here, I’ve just noticed that Volume Three of the Feynman Lectures (Quantum Mechanics) is now available online.

Once again, a really fantastic version and all free too!

Hopefully this helps ignite the imagination of the next Feynman…


What’s All This Higgs Stuff?

October 6, 2013

A nice video version of the ‘explanation’ of the Higgs field/particle (discovered earlier this year) that’s based on an analogy with people at a party and the different ways they interact with each other. See also here.

I’m very familiar with this area (my postgraduate research was in particle physics) so it’s not easy to appreciate how useful or otherwise these mini-explanations are. Books are available for longer and more detailed explanations, at various levels, but these are obviously not for everyone.

In fact there are so many distractions these days, I guess getting a few minutes of someone’s time and getting a flavour of the concepts over is quite an impressive achievement!

For more info, there’s a very accessible and recent account of this important breakthrough here.


Feynman’s Legendary Lectures

September 24, 2013

feynman-lectures-caltech

I started out in life as a physicist (in particle physics to be precise).  In hindsight, I was very lucky to be doing research during an extraordinarily productive period (see here and here) – it was an exciting time!

One aspect of this was helping give undergraduate courses as well as taking problem sessions. Courses usually had a standard textbook to go with them, and there was a good selection. At the same time, there was also the famous Feynman Lectures on Physics (FLP) which were a very individualistic take on broadly the same material.

Rather remarkably, the first volume of the Feynman lectures is now available free online with the other two volumes in preparation. They’ve done a really excellent job, it’s worth taking a look, even if there’s only a passing interest. There’s some interesting background on the development of the online version here, including:

Mike Gottlieb has now devoted 13 years of his life to enhancing FLP and bringing the lectures to a broader audience, receiving little monetary compensation. I asked him yesterday about his motivation, and his answer surprised me somewhat. Mike wants to be able to look back at his life feeling that he has made a bigger contribution to the world than merely writing code and making money.

Finally, it’s revealing to read Feynman’s preface to these lectures (written in 1963):

I think, however, that there isn’t any solution to this problem of education other than to realize that the best teaching can be done only when there is a direct individual relationship between a student and a good teacher—a situation in which the student discusses the ideas, thinks about the things, and talks about the things. It’s impossible to learn very much by simply sitting in a lecture, or even by simply doing problems that are assigned. But in our modern times we have so many students to teach that we have to try to find some substitute for the ideal. Perhaps my lectures can make some contribution. Perhaps in some small place where there are individual teachers and students, they may get some inspiration or some ideas from the lectures. Perhaps they will have fun thinking them through—or going on to develop some of the ideas further.

The above lectures are at an undergraduate level and some are quite advanced. If you’re interested in his lectures at a more general level, take a look instead at the his Messenger Lectures or else the videos produced by Christopher Sykes.

Feynman was quite a remarkable man and it’s very impressive that his legacy lives on in so many ways.

Picture credit: here.


The Importance Of High Quality Ignorance

September 2, 2013

How can science capture the hearts and minds of the general public?

At a TED Conference earlier this , Stuart Firestein (Columbia University) suggested that more emphasis be put on communicating the role of questions (‘conscious ignorance’) than on answers (‘facts and knowledge’) to give a more compelling insight into how science actually works.

From an article that comments on his talk:

Firestein said George Bernard Shaw was delightfully right when he noted that “Science is always wrong. It never solves a problem without creating 10 more.” And Firestein said this was a good thing: “We use knowledge to create high quality ignorance.” High quality ignorance is the goal, because what we don’t know makes a good question for a scientist.

Science is a practice of revision, and Firestein asserted that it’s a victory to revise. He’s suggesting a major revision in how we communicate science. He believes communicating our quest for ignorance to students and the public is the best way to spark scientific imagination. “Answers create questions… we may commonly think that we begin with ignorance and we gain knowledge,” he prefaced. “The more critical step in the process is the reverse of that.”

Looking at the video, which is a good and easy watch, I liked his phrase ‘you get a little knowledge so you can better define the ignorance you have to go after’, which has obvious business applications as well. This is probably quite far from the common perception that science is linked to hard facts and certainty.

On this theme, there’s a nice quote from Richard Feynman on the roles of ignorance, doubt and uncertainty in science:

“The scientist has a lot of experience with ignorance and doubt and uncertainty, and this experience is of very great importance, I think. When a scientist doesn’t know the answer to a problem, he is ignorant. When he has a hunch as to what the result is, he is uncertain. And when he is pretty darn sure of what the result is going to be, he is in some doubt. We have found it of paramount importance that in order to progress we must recognize the ignorance and leave room for doubt. Scientific knowledge is a body of statements of varying degrees of certainty – some most unsure, some nearly sure, none absolutely certain.”


The Financial Ecosystem

August 15, 2013

assortative_disassortative

Before transferring to the business sector, I spent the first twenty years of my career as a physicist in academia (see eg here). Because of this I retain a strong interest in developments in this and related fields. There are often tantalising connections.

In this context, there’s an interesting article in +Plus magazine on thinking about the financial system through the eyes of mathematical biology:

Financial mathematics received a lot of bad press in the aftermath of the crunch and many believe that it was the popularity of mathematical models – often borrowed from physics — that put the financial system at risk. But now models borrowed from biology are helping us understand how this risk might be reduced.

In particular, models can help us understand how the structure of a network influences disease transmission. For instance, during an HIV/AIDS outbreak, a person with lots of partners will spread more infection than one with few. If the network is assortative — with individuals with lots of partners interacting mainly with others who have lots of partners — the infection will spread quickly initially but soon burn out. However, if the network is disassortative — with high-risk people mixing with low risk individuals — the epidemic will be slower, but result in more cases. Unfortunately the financial network appears to be disassortative, which means any problems are likely to spread widely.

See also here.

Picture credit: here.


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