Science week in Ireland: was Einstein wrong?

This week is Science Week in Ireland, with science events taking place all over the country. There are talks and demonstrations on every aspect of science you can think of, from a demonstration of animal magic at Killaloe in County Limerick to astronomy at the Crawford Observatory of University College Cork.

This evening, I will give a public lecture on the Big Bang in Trinity College, hosted by Astronomy Ireland. We’re still in the International Year of Astronomy, celebrating the 400th anniversary of Galileo’s use of the telescope to establish the heliocentric model of the solar system, so it’s highly appropriate to have a lecture describing another paradigm shift in science brought to us by astronomy: the discovery of the expanding universe and the big bang model that followed. I’m delighted to be giving the lecture as Astronomy Ireland do a fantastic job of promoting astronomy and science around the country, with night-classes in astronomy, public viewings of astronomical events and regular public science lectures. It’s also fun to tell the story of the discovery of the big bang model to people with an interest in astronomy, as many of them already know most of the facts, but from a slightly different perspective. Indeed, much of what we know of cosmology really comes from astronomical observation. You can find a poster, a summary of the lecture and the slides I will use here.

As I write this post, I’m sitting in the RTE canteen having done an interview promoting the lecture on Today with Pat Kenny, the flagship radio show of RTE, the Irish broadcasting corporation. (The last time I was at RTE I was auditioning for deputy work with theĀ  Concert Orchestra but that’s another story!). I think the interview went well, it was certainly good fun. Unlike a lot of scientists I quite enjoy talking to the media, it’s a challenge getting deep ideas across in a short interview without sounding completely incomprehensible! I also find this particular radio show very good and listen in whenever I can.

Astronomy Ireland marketed the lecture as ‘The Big Bang: Was Einstein Wrong? which is quite a good hook, so the interview touched on this quite a bit. Of course the answer is YES, it refers to a famous Einstein gaffe. When E. applied the general theory of relativity, his new theory of space, time and gravity, to the entire universe, it predicted a universe that was changing in time (space and time expanding). No evidence for such a thing existed at the time, so Einstein then introduced an extra term into the equations of relativity to force the universe to be static. Such fudge-factors are always risky in science and sure enough it turned out to be a big mistake. In 1929, the American astronomer Edwin Hubble established unequivocally that faraway galaxies are rushing away from one another and mathematicians realised that the universe is indeed expanding. Einstein immediately dropped the spurious term (known as the cosmological constant), declaring it his ‘greatest blunder’. You can listen to a podcast of the interview here, I hope I got the point across!

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Einstein: right about relativity, but missed the prediction of the expanding universe

On Tuesday evening, I’ll give a repeat of the lecture in Waterford,in the main Auditorium of our college. On Wednesday, there is a talk on on the legacy of Charles Darwin at Waterford City Hall, which should be very good, I hope to attend myself. Both these lectures have been organised by CALMAST, the science communication group at WIT. All in all, it’s going be a busy week.

Update: I can see why media interviews are important, we had to change venue to the largest lecture theatre in trinity last night as we got a turnout of about 500! I think the lecture went well, I certainly enjoyed it.

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17 Comments

Filed under Cosmology (general), Public lectures, Science and society

17 responses to “Science week in Ireland: was Einstein wrong?

  1. Cormac,
    You mention in another post that you enjoyed the LHC Rap by Kate McAlpine. Well here is another what you will enjoy;
    Carl Sagan – ‘A Glorious Dawn’ ft Stephen Hawking (Cosmos Remixed); http://www.youtube.com/watch?v=zSgiXGELjbc

    John.

  2. MikeS

    You may be interested in this alternate approach to the Theory of Everything. Einstein was right about the shortcomings of Quantum Mechanics and so therefore String Theory is also the incorrect approach. As an alternative to Quantum Theory there is a new theory that describes and explains the mysteries of physical reality. While not disrespecting the value of Quantum Mechanics as a tool to explain the role of quanta in our universe. This theory states that there is also a classical explanation for the paradoxes such as EPR and the Wave-Particle Duality. The Theory is called the Theory of Super Relativity.
    This theory is a philosophical attempt to reconnect the physical universe to realism and deterministic concepts. It explains the mysterious.

  3. There was a guy questioning red shift. Did you sort it out in the pub? Why didn’t he think we interpret it correctly?

    Enjoyed your talk. Will be looking things up for the next while :-)

  4. cormac

    John: tnx, like the Hawking verse, I’m not sure what to make of the rest
    MikeS: Yes, i’ve seen it, interesting but don’t agree with it.
    Mollydot: As so often, the complicated question masked the fact that said person also doesn’t accept basic knowledge such as E=mc2 etc. You can’t really argue with people with that sort of fixed opinion, it’s like trying to reason with a drunk

  5. I’m a great fan of Carl Sagan Cormac, i find him very inspirational. I enjoyed your talk tonight in WIT, my apologies if my questions were long-winded, my friend told me i spent too long explaining my James Dyson analogy of why we tend to trust far too much of that Einstein said.

    Thanks again for a super talk,
    John.

  6. cormac

    I prefer Freeman Dyson, now there’s a serious physicist!
    Seriously, scientists make a terrible mistake in alllowing the public to see Eimstein and Hawking as figures like Mozart and Beethoven. It just doesn’t work that way, it is really incidental who puts the idea together first – what counts is how the model stands up to repeated testing over the years..

  7. Freeman Dyson, yes, i have read about his thought on searching for extraterrestrial civilizations and his Dyson Sphere; http://en.wikipedia.org/wiki/Freeman_Dyson#Dyson_sphere

    Indeed he has a beautiful and creative mind, the world craves for more creative and beautiful science-(fiction). I do anyway…LOL

    John.

  8. Colin Rosenthal

    When I was at university we were taught that he was wrong about the anomalous specific heat capacity of conductors. Did you mention that ?

    :-)
    Colin

  9. Great post! I am a college sophomore with a dual major in Physics and Mathematics @ University of Canterbury in Christchurch, New Zealand. I agree with cormac that public sees Einstein and Hawking like Mozart and Beethoven. By the way, i came across these excellent physics flash cards. Its also a great initiative by the FunnelBrain team. Amazing!!!

  10. Justin King

    Hi Cormac. I had been looking forward to going to this talk but just couldn’t make it on the night. I see that the podcast you mention has disappeared from the Today with PK website. Any chance you have another link to it? If not it doesn’t matter, I believe I can get a DVD of the talk itself from Astronomy Ireland. By the way, I’ve been reading this blog on and off for the last few months and I have to say it really is excellent. (You would definately would get my vote for Professor for Public Understanding of Science!)

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