Category: Science

What We Still Don’t Know? Part 3

The concluding part – Are We Real?

As I implied when I introduced Part 2 last Thursday, Why Are We Here?, these are deeply interesting films.  Do find time to watch them both (Part 1 Are We Alone is here ) if you can.  So here is the concluding part, Are We Real? You can either go to it via this link, or watch the YouTube elements below.

There is a fundamental chasm in our understanding of ourselves, the universe, and everything. To solve this, Sir Martin takes us on a mind-boggling journey through multiple universes to post-biological life.

On the way we learn of the disturbing possibility that we could be the product of someone else’s experiment.

I do hope you all found these three films as stimulating and thought-provoking as Jean and I did.

What We Still Don’t Know? Part 2

Why Are We Here?

On Tuesday, I introduced the first of three films hosted by Lord Martin Rees.  That was called Are We Alone.  I do hope many of you were able to watch that.  Film two is also from the website Top Documentary Films and the link is here.  But, again, the film is available in 5 parts from YouTube and follows below.

In total, just around an hour to watch and well worth while.  You will find, believer in God or not, that there are some deeply spiritual aspects to Martin Rees’ wonderful presentation.

Everything you thought you knew about the universe is wrong. It’s made of atoms, right?

Wrong. Atoms only account for a measly 15% of everything that exists!

The mass of the universe consists of something so mysterious and elusive that it has been dubbed ‘dark matter’.

The final film of the trilogy will be presented on Learning from Dogs next Tuesday, the 17th January.

The Goldilocks Planet.

Neither too close nor too far from the Sun.

Towards the end of the lecture that Lord Martin Rees gave at  University of Melbourne’s Medical School in 2010, he spoke of the way that Planet Earth has warmed up these last 100 years, warmed up uniquely.  Why the word ‘uniquely’?  Because, for the first time in the ancient life of our planet, that warming is the result of the activity of a life species living on that planet; mankind.  It’s difficult to comprehend how special, how fragile and, therefore, how vulnerable is mankind’s ability to survive on Planet Earth.  That’s why a recent item on Martin Lack’s excellent blogsite Lack of Environment is published on Learning from Dogs with Martin’s kind permission.  But first let me quote a little from WikiPedia about the ‘goldilocks principle’,

In astronomy and astrobiology, the habitable zone is the region around a star where a planet with sufficient atmospheric pressure can maintain liquid water on its surface.[1]1 Since liquid water is essential for all known forms of life, planets in this zone are considered the most promising sites to host extraterrestrial life. The terms “ecosphere” and “Liquid Water Belt” were introduced by Hubertus Strughold and Harlow Shapley respectively in 1953.[2] Contemporary alternatives include “HZ”, “life zone”, and “Goldilocks Zone.”[3]

“Habitable zone” is sometimes used more generally to denote various regions that are considered favorable to life in some way. One prominent example is the Galactic habitable zone’ (the distance from the galactic centre). Such concepts areinferred from the empirical study of conditions favorable for life on Earth. If different kinds of habitable zones are considered, their intersection is the region considered most likely to contain life.

The location of planets and natural satellites (moons) within its parent’s star’s habitable zone (and a near circular orbit) is but one of many criteria for planetary habitability and it is theoretically possible for habitable planets to exist outside the habitable zone. The term “Goldilocks planet” is used for any planet that is located within the CHZ[4][5] although when used in the context of planetary habitability the term implies terrestrial planets with conditions roughly comparable to those of the Earth(i.e. an Earth analog). The name originates from the story of Goldilocks and the Three Bears, in which a little girl chooses from sets of three items, ignoring the ones that are too extreme (large or small, hot or cold, etc.), and settling on the one in the middle, which is “just right”. Likewise, a planet following this Goldilocks Principle is one that is neither too close nor too far from a star to rule out liquid water on its surface. While only about a dozen planets have been confirmed in the habitable zone, the Kepler spacecraft has identified a further 54 candidates and current estimates indicate that there are “at least 500 million” such planets in the Milky Way.[6]

So now to Martin Lack’s post.

Goodbye Goldilocks Planet?

Is it time to say goodbye to the Goldilocks Planet?

I hope not, because the next-nearest one yet discovered is 600 light years away! However, if we are indeed now passing a tipping point (i.e. as the widespread rapid thawing of Siberian permafrost suggests) both mitigation and adaptation will be almost impossible. Therefore, if we cannot reverse the damage already done (i.e. how can we make permafrost re-freeze or reverse the retreat of mountain glaciers?), we may have to accept that temperatures will eventually rise to a level at which the Antarctic first became glaciated 35 million years ago; and that sea levels will now rise continuously for several centuries – making any permanent settlement anywhere near the coast impossible (seeJames Hansen in Storms of my Grandchildren).

If your response to all this is to accuse me of being alarmist, all I can say is that I am afraid denial is definitely not a good evolutionary survival mechanism. Furthermore, as American high school science teacher – and now climate change activist – Greg Craven has said,“Unfortunately, the experiment is already running; and we are all in the test-tube!” I believe we must therefore hope that humanity will not repeat the folly of the former inhabitants of Easter Island; who chopped down all their trees for firewood and allowed all the decent soil to be washed away so they could not grow anything.

I think it is fair to say that 2011 was a difficult year for humanity and the planet; and 2012 could be worse. We now seem to be facing both a financial and an environmental crisis: Even at the tender age of 46, I can appreciate that the prospect of 6 years of austerity measures (here in the UK) is completely without precedent; worse even than the great depression of the 1920s. In the UK, public sector workers have been demanding a better pension! What about a better economic system, or even a better planet? If necessary, please forgive my impertinence but, how can people demand justice for themselves whilst ignoring all the injustices we are inflicting on those least able to adapt; and/or bequeathing to our descendants?

This is almost as pessimistic as my recent answer on ClimateSight to the question “Why are people who want to reduce – and possibly eliminate pollution – and create a safer world, considered obstructionist naysayers?“, which is… “If everyone lived as we do in ‘the West’, the planet’s ecological carrying capacity would only be about 3 billion [Paul and Anne Ehrlich (1996)]. Therefore we cannot solve poverty without allowing a lot of people to die or by wealthy people agreeing to moderate their over-consumption of the Earth’s resources. Sorry to be so blunt but, this is the simple answer to the question.” …Despite what detractors say this is not misanthropic eco-Socialism, it is reality. There is not enough decent farmland and/or resources of every kind for 7 billion people or more to live like we currently do in ‘the West’. If we are not going to deny the legitimate aspirations of poorer peoples to attain a better standard of living, we will have to moderate our over-consumption and/or pollution of the Earth’s resources. We cannot have it both ways.

Conclusion
If we continue to burn all the Earth’s fossil fuels – just because they are there and because we can – we will most certainly have to say good bye to our Goldilocks Planet. However, now that we know that what we are doing is causing the problem, would it not be a good idea to stop doing it? You know: When in a hole, stop digging, etc… As the Good Book says, “As a dog returns to its vomit, so a fool repeats his folly” (Proverbs 26:11).

Suggested New Year’s Resolution:
If we want things to change, I believe we must acknowledge that Clive Hamilton is right: climate change is a failure of modern politics – representative democracy is not working! Therefore, we must all take a much more active role in the process of government – this is called participatory democracy – and we must start by demanding that our politicians dismantle (or at least stop being misled by) the fossil fuel lobby who do not want their business as usual programme interrupted.

Having said all that, I would still like to sincerely wish you all the best for 2012 (although I hope the Mayan Calendar is wrong).

What We Still Don’t Know?

Are we truly alone?

On the 5th January, I presented a piece, called Life and the Cosmos, that was based on a deeply interesting lecture given by Britain’s Lord Martin Rees at the University of Melbourne’s Medical School in 2010.  I wrote that I was going to pick up on some of the points made by Lord Rees in that lecture and I do so starting today.

On the website Top Documentary Films there is a collection of three films, originally shown on Channel 4 television in the UK, under the broad banner of What We Still Don’t Know?  They make deeply fascinating viewing.  Luckily they appear to be available on YouTube as well, thus can be included directly in this Post.  However, if you have any problems with the YouTube versions then click here.

So here is the first programme, Are We Alone?

Are we alone? Sir Martin explores the possibility that life exists on planets beyond our own. He unveils an unsettling scientific debate that has startling consequences for us Earthlings. Do you believe in aliens? Why are we here? Everything you thought you knew about the universe is wrong. It’s made of atoms, right? Wrong. Atoms only account for a measly 15% of everything that exists. The mass of the universe consists of something so mysterious and elusive that it has been dubbed ‘dark matter’. Are we real? There is a fundamental chasm in our understanding of ourselves, the universe, and everything. To solve this, Sir Martin takes us on a mind-boggling journey through multiple universes to post-biological life. On the way we learn of the disturbing possibility that we could be the product of someone else’s experiment.

The second programme Why Are We Here? will be presented on Learning from Dogs on Thursday.

Life and the cosmos

A powerful lecture by the eminent Lord Martin Rees

Martin Rees at Jodrell Bank, 2007

I came across this interview a few days ago in connection with some book research that I was undertaking.  Please don’t be put off by the 56 minute length because Martin Rees is one of the most pre-eminent cosmologists around today, as well as being the UK’s Astronomer Royal since 1995.

Make a promise to yourself to settle down sometime soon and watch the lecture, given at the University of Melbourne’s Medical School in 2010.  And a warning! I going to pick up on some of the important points made by Martin Rees in a couple of posts next week.

Here’s how the lecture was reported by the Australian science website, SixOne Science,

Lord Rees in Melbourne

In a packed Sunderland Lecture Theatre in the University of Melbourne’s Medical School, Lord Martin Rees gave the inaugural Derek Denton Lecture in Science and the Arts. Lord Rees, an eminent and accomplished astrophysicist and cosmologist, is coming to the end of his five year tenure as the president of The Royal Society. The event even managed to attract or Prime Minister, Kevin Rudd, who entered without a noticeable entourage and with no fanfare, and the Governor of Victoria, Professor David de Kretser, a scientist himself.

The lecture was entitled “Life and the Cosmos”, a grand and sweeping title if ever there was one. It seemed like an impossible amount of material to cover in the allotted hour. However, Rees delivered an entertaining, humorous account of life from the big bang, through the formation of stars and galaxies, to the origins of life and perhaps the biggest crowd pleaser, the search for extra-terrestrial life. Most in the lecture theatre would not have learnt anything new, but this lecture was aimed at a general audience and the material was interesting enough to keep everyone interested for the hour despite being squashed into an ageing undergraduate lecture theatre complete with squeaky desks and a slightly musty smell. Perhaps Mr. Rudd was sufficiently uncomfortable to increase university funding, we can hope.

Whist this was predominately an overview of the subject material, Rees expressed some opinions about space exploration. He seemed torn between his human curiosity and the cost of human exploration. Given the advances in robotic exploration vehicles, Rees has difficulty in justifying the cost of sending humans on planetary exploration missions. Perhaps the best case for robotic exploration was made by the amazing photos he showed from the surfaces of Mars (photos) and Titan (photos), a moon of Saturn. Interestingly, Rees believes that if human exploration does proceed in the future it will be led by the Chinese or groups of private individuals. He also raised the issue of exploitation of other planets, something not often mentioned in the debate over human space travel. We need to decide if other bodies in our solar system are open for exploitation or if they should be preserved as wilderness, in a similar way to Antarctica. Given the pressures faced by places like Antarctica and the Amazon this will be an important debate should human exploration resume.

Rees concluded his lecture with the almost obligatory call for us to take better care or our own planet. He, like many others, recognises the unique place in history that we occupy. For the first time a single species is capable of exerting profound changes on the Earth’s natural and physical environments (although it might be argued that the first photosynthesizing cyanobacteria had a similarly singular influence by increasing the proportion of oxygen in the atmosphere). It is interesting to note that he does not see colonisation of other planets as a solution as the Earth is still the only known planet capable of sustaining us. Although he did discuss the likelihood of discovering Earth-like planets (pretty good given advances in technology). However, Rees did not paint an overly pessimistic picture and he generally came across as optimistic and enthusiastic about the future.

The organisers of the Derek Denton Lecture series should be commended for attracting such a high profile speaker for the first of the series. Hopefully the series will be successful, and if so may need to be moved to a bigger venue. If you want to see the lecture it will soon be available here. The next lecture of this series hasn’t been announced yet, it will be on the Arts, but you can check here for future public events at The University of Melbourne.

Round-Up Ready.

An update to my piece last year!

Last Friday, the 30th December, I published an hour-long video interview, introduced thus,

Toxic botulism in animals linked to RoundUp

Dr Mercola recently interviewed Dr Don Huber, whose letter to the USDA warning that Monsanto’s RoundUp, a broad-spectrum “herbicide” that has been linked with spontaneous abortion in animals, continues to be ignored by food and environmental safety authorities. In this important hour-long discussion, Huber, a plant pathologist for over 50 years, explains how RoundUp is destroying our healthy soils by killing needed microorganisms.

For those of you who watched that interview, you may like to watch the first few minutes of a documentary made by Journeyman Pictures that shows how right can overcome might!

Percy Schmeiser has his own website here and from there you can go to a section where Percy speaks about his experiences.

Funny old world!

Bringing in the New Year

A couple of stupendous spectacules!

Neil K. from South Devon sent me these, a little too late to put in my NY Post that came out yesterday.  But they were too good to leave to next week-end so here they are.  First Berlin.

Beginning with a countdown on a giant hourglass and a greeting from an “Android,” LG’s huge presentation took viewers on a thrilling 3D ride that included — among other things — whales, ice skaters, giant octopi and steaming jungles.

Second London.

One of the most amazing firework displays ever!

The coming new year!

Be warned, one of my more reflective muses!

Tomorrow is the last day of the year 2011.

For reasons that I am not clear about, there is a mood of pessimism about my person.  Whether it is the scale of global issues that I see ahead that drags me down, whether the year of an American Presidential election will remind me of the loss of reason that afflicts so many modern democracies, whether the messages in Kunstler’s book The Long Emergency still resonate in my mind well, who knows?

But when one does look at the broader picture of modern society, there is much that troubles.

So forgive me if I provide a couple of examples of these troubles.  I do so on the grounds of communication – the more that understand the risks ahead of us, the more likely we, as in the peoples of this planet, will say to our leaders, “Enough of this!  For the sake of my children, my grandchildren and all of humanity we have to change our priorities, and soon!”

Here’s my first example.

The US National Resources Defense Council recently published an item about severe weather including an interactive Extreme Weather Map, introduced thus,

Climate change increases the risk of record-breaking extreme weather events that threaten communities across the country. In 2011, there were at least 2,941 monthly weather records broken by extreme events that struck communities in the US.

That was backed up by an article on the Onearth website that opened,

By many measures, 2011 was the most extreme weather year for the United States since reliable record-keeping began in the 19th century — and the costs have been enormous. According to the National Oceanic and Atmospheric Administration, 2011 set a record for the most billion-dollar disasters in a single year. There were 12, breaking the old record of nine set in 2009. The aggregate damage from these 12 events totals at least $52 billion, NOAA found.

And that just for the USA.  But will climate change be the Number One political issue in 2012?  And if not in 2012, when will it be?

Let me move on to my second example, very different from the one above but, in a sense, just as scary.  This is an interview that was in a recent article on the Food Freedom website ( brilliant website, by the way).  Dr. Joseph Mercola, the leading natural health practitioner, interviews Dr. Don M. Huber, one of the senior scientists in the U.S about the area of science that relates to genetically modified organisms (GMO). Here’s an extract from the article on Food Freedom,

Toxic botulism in animals linked to RoundUp

Dr Mercola recently interviewed Dr Don Huber, whose letter to the USDA warning that Monsanto’s RoundUp, a broad-spectrum “herbicide” that has been linked with spontaneous abortion in animals, continues to be ignored by food and environmental safety authorities. In this important hour-long discussion, Huber, a plant pathologist for over 50 years, explains how RoundUp is destroying our healthy soils by killing needed microorganisms.

Not only did his team discover a new soil pathogen, but he reports that animals are coming down with over 40 new diseases, like toxic botulism. Huber explains that before the widespread use of herbicides, pesticides and genetically modified food and feed, natural probiota would have kept Clostridium botulinum in check

The video, below, of the interview is included in the article.  Please don’t be put off by the length, the material covered is riveting and critical to our general knowledge about the threats to our society.

So that’s enough from me for one day!  On Monday, I shall include another video relating to the RoundUp issue that reveals, both directly and metaphorically, how the only solution to pessimism is to embrace the need to make change happen.  Be inspired by this poem by Sam Keen, included in the latest Sabbath Moment from Terry Hershey,

I Want to Surrender

God, I want to surrender
to the rhythm of music and sea,
to the seasons of ebb and flow,
to the tidal surge of love.

I am tired of being hard,
tight, controlled,
tensed against tenderness,
afraid of softness.
I am tired of directing my world,
making, doing, shaping.

Tension is ecstasy in chains.
The muscles are tightened to prevent trembling.
Nerves strain to prevent trust,
hope, relaxation….

Surrender is a risk no sane man may take.
Sanity never surrendered
is a burden no man may carry.

God give me madness
that does not destroy
wisdom,
responsibility,
love.

Sam Keen

Teamwork with a capital ‘T’!

A fascinating talk by Luis von Ahn about new and powerful ways of collaborating.

Before moving on to this Post, just a quick word about the next seven days.  I’m going to take a small break over Christmas, not by ceasing to publish Posts but by offering you a number of light-hearted items that have come my way.  Hope you enjoy them and a very big thanks for the support of Learning from Dogs that you have shown over the year; it means a great deal.  Have a wonderful Christmas vacation.

This particular Post focusses on a talk given (as below) by Luis von Ahn that is on TED Talks.  The TED website is a fabulous resource.  The interview was brought to my attention by Lee Crampton of Softdev.  Lee and I go back a number of years, to the time when he and I were part of a small group that started up a company that offered online flight briefing services to the airline industry; still running today as it happens.  So very happy to recommend Lee, more details of the services he can offer are here.

After re-purposing CAPTCHA so each human-typed response helps digitize books, Luis von Ahn wondered how else to use small contributions by many on the Internet for greater good. At TEDxCMU, he shares how his ambitious new project, Duolingo, will help millions learn a new language while translating the Web quickly and accurately — all for free.

Watching this video made me muse about the potential for this level of transformation in other areas.  Fascinating!

The Long Emergency, part one

A reflection on the huge changes facing our global society.

I am reading James Howard Kunstler’s book The Long Emergency.  On the front cover there is a quote from a review in The Independent newspaper, “If you give a damn, you should read this book.”  On the back cover, the quote, “Stark and frightening.  Read it soon.” – Daily Camera.  The quotes are spot on!

Rather than give my own opinion at this stage (I should finish the book first!), let me quote from the opening of Chapter Five, Nature Bites Back.

I was a at a four-day conference called Pop Tech in the seaside village of Camden, Maine, at the peak of the fall foliage season in October 2003, having a pretty good time at the talks, and enjoyiong a series of extravagant dinners – one featuring a free oyster raw bar and gratis Grey Goose vodka – not to mention all the lobsters, steaks, and other products of our bountiful cheap-oil economy.  Then, on Saturday afternoon, a scientist from the University of Washington, Peter D. Ward, got up in the old-time opera house where the conference was held and did a presentation about the life and death of the planet Earth,  Using a series of vivid artist’s renderings delivered on PowerPoint, Ward showed us how, hundreds of millions of years hence, all land animals would become extinct, the green forests and grasslands would broil away, the oceans would evaporate, and eventually our beloved planet would be reduced to a pathetic ball of inert lifeless lint – prefatory to being subsumed in the expanded red giant heat cloud of our baking sun.  Few members of the audience had any appetite for the spread of cookies and munchables laid out for the break that followed.  Personally, I was so depressed that I felt like gargling with razor blades.

The human spirit is remarkably resilient, though.  A few hours later, the horror of it all was forgotten and the conference-goers reported to the next supper buffet with the appetites recharged, happy to scarf more lobster and beef medallions and guzzle more liquor, while chatting up new friends about their various hopes and dreams for the continuing story of civilized life here on good old planet Earth, which, it was assumed, had quite a ways to go before any of us needed to worry about its fate, if ever.

Wasn’t it John Maynard Keynes who famously remarked to a group of fellow economists dithering about the long-term this and the long-term that: “Gentlemen, in the long term we’re all dead.”  Our brains are really not equipped to process events on a geological scale – at least in reference to how we choose to live, or what we choose to do in the here-and-now.  Five hundred millions years is a long time, but how about the mad rush of events in just the past 2,000 years starring the human race?  Rather action-packed, wouldn’t you say?  Everything from the Roman Empire to the Twin Towers, with a cast of billions – emperors, slaves, saviors, popes, kings, queens, navies, rabbles, conquest , murder, famine, art, science, revolution, comedy, tragedy, genocide, and Michael Jackson.  Enough going on in a mere 2,000 years to divert anyone’s attention from the ultimate fate of the earth, you would think.  Just reflecting on the events of the twentieth century alone could take your breath away, so why get bent out of shape about the ultimate fate of the earth?  Yet, I was not soothed by these thoughts, nor by the free eats, and even the liquor failed to lift me up because I couldn’t shake the recognition that in the short term we are in pretty serious trouble, too.

OK, that’s enough for today – I’ll continue this important extract on Monday.  Let me close by inviting you to watch James Kunstler in interview.