One of my constant and recurrent joys is to attend the
exquisite lectures of the Unveiling the Universe series presented by TRIUMF and
held at Science World. Last night we had the pleasure to see S. James Gates
Jr., a renowned American scientist who has investigated such awesome and awe-inspiring
astrophysical concepts, such as supersymmetry and string theory, who looks a little
like Morgan Freeman and sounds a little like Denzel Washington (only somewhat
higher-pitched) and who serves on President Obama’s Council of Advisors on
Science and Technology.
The title of the talk included bits in Italian (L’arte della fisica), but the lecture
itself did not contain any words in that language; nonetheless, it was still
confusing as it seemed to be about the Art
of Physics yet at the same time to deal with how to access one’s creativity app (whatever that meant). I remember having
previously read a somewhat similarly titled book The Tao of Physics: An Exploration of the Parallels between Modern Physics
and Eastern Mysticism by Fritjof Capra and being quite impressed by it.
Towards the beginning of the lecture, Gates Jr. promised math-phobic
folks like me that there would be little mathematics involved, but then he
showed us slides and slides of mathematical equations. It was quite distressing
indeed, while his blunt claim that you cannot be a serious astrophysicist if
you do not have the necessary mathematical qualifications was a bit of a downer for
me. So much for my own (dashed) hopes of being a hobby-horse astrophysicist in
my spare time.
Yet at that moment, more than ever, did I realize just to
what degree mathematics is similar to a given language. It has its own symbols
and notations as well as grammar structure and it is understood only if you have
sufficient background knowledge and experience. Gates Jr. compared it often to
a musical score (another language of its own); a musician would turn it into
sounds in their head whereas a layperson would merely scratch their head over
the scribbles and ants crawling up and down the lines.
One of the most surprising connections in this lecture
was the relationship between physics and the arts. He showed us images and
short animations that were representations of some of the equations he had
shown us previously. Not that it was any easier to comprehend, but it showed us
that the two disciplines could be closely linked and related. I found it most
stunning to hear that Schoenberg’s twelve tone technique was just another type
of representation of the mathematical Vierergruppe!
Gates Jr. also made a point that religion was indeed
involved with science to some visible degree. In fact, many are not aware
(myself humbly included) that the first proponent of what later was to be known
as the Big Bang theory was presented by the Belgian Catholic priest / astrophysicist
Georges LemaĆ®tre. Initially, he called his theory “hypothesis of the primeval
atom” with the even cooler tag of “Cosmic Egg”! Interestingly, his theory of an
expanding universe was erroneously (!) contested by Einstein.
Although science and religion have had their fair share
of shared accomplishments, each side is more often than not wary of the other.
This might be perhaps due to the fact that their methodology is rather
different. Science is more of a path, with many crooked sideways, while it gets
things more often wrong than right.
However, when science does it get it right, it is worth
all the effort and sweat. Science, overall and in Gates Jr.’s words, is less
interested in truth but more in accuracy, while the latter is something that
can be measured. Part of the problem is to find the right fine-tuned tools.
For instance, the space-time curvature actually makes a
sound, as crazy as that may sound! Gates Jr. compared it to a creaky floor in
an old house and these sound waves leave traces and can be recorded by
equipment that is extremely precise and detailed. Space-time is treated as any
other material and physical thing in the universe, which is, of course,
mind-boggling to think of. But now it can be even measured!
In other words, once proven mathematically, the hypothesis
in question would become the accepted and chosen one until, of course, a new,
better and more integral theory came along. It might take some considerable
time for it to happen, but patience often pays off.
For instance, some of Einstein’s theories (excluding his “blunder”
about the expanding universe) have been proven to be accurate after all! As
Gates Jr. mentioned at some point during the talk, the world is a quantum
mechanical one and we have the measurements to prove that.
Moreover, there was a consistent focus on imagination and
creativity. To quote Einstein, imagination is, in fact, more important than
knowledge. At this point, Gates Jr. gave us a personal example. He was trying
to think outside of the box and wanted to gain a new perspective on certain
theoretical issues. This proved frustrating.
However, the best thing to do when you simply cannot
crack the code is to let it be. This does not equate with giving up but it is more
like giving it a rest for a while. So he turned to comics and to watching cartoons. Ironically, even though we relax our mind, it still continues, like a computer, to process information in
the background, i.e. our subconscious.
And as he was watching the PowerPuff girls (I assume his
daughter was watching it at the time), he suddenly had the answer he was
looking for! Taking one of the heads of the PowerPuff girls as an example, he
showed us on a slide how it solved the contentious astrophysical issue he had
been battling with. Suddenly her head turned into another equation including
strings.
This was the so-called Muse that worked and operated
indiscriminately on both artists and scientists alike. Without imagination, there
would be little science after all. And it is all those creative steps from the
past that have led to the technological world we enjoy today. Maxwell and Hertz
would be pleased to see how their findings were to a large part responsible for
today’s cellphone technology, and they might be playing Pokemon Go against each other if they were still alive.
Yet with such technological prowess, hazards also appear.
The powerful equation of Einstein’s E = mc2 has led to both, a revolutionary
form of creating energy as well as the threat (and actual use) of atomic bombs.
It is a yin / yang situation, a blessing versus a curse, and it is our
collective responsibility as humans to choose the side that helps to propel us
forward instead of destroying our species.
Finally, I enjoyed his manner of responding to failure. Failure
is a part of our lives and brilliant scientists like him are not immune to it
either. So how did he personally deal with it? He bowled.
Anytime, he did not do well on his exams, for instance,
he would go out bowling. And in fact he, according to his own account, became quite
a good bowler during his years of university. He even joined championships, but
fortunately for us all, he did not change or abandon his allegiance and remained
true to his scientific inquiries instead of competing as a professional bowler.
It must be said that Gates Jr. was quite courageous to
pick a relatively new topic for his thesis, namely string theory. The downside
was that there was not too much research about it; the upshot was that during
his defense he could make things up as he went along as his supervisors did not
have the previous knowledge or background to challenge him in any meaningful
way.
On a final note, I had my own test at this lecture. The
quite affable and humorous Outreach director Marcello Pavan from TRIUMF had
claimed that he would allow younger audience members to ask their questions first;
the shorter you were the higher your chances to be picked during the Question
and Answer period.
So for the first time, I decided to bring my
seven-year-old son along. It was his first astrophysical lecture and he has
some budding interest already in the field, especially regarding black holes.
However, his question was about the future of the universe; in fact, he wanted
to know what would happen in a hundred years from now.
True to his promise, Marcello Pavan did end up picking my
son, and Gates Jr. explained that 100 years may be a lot for us humans, but for
the universe it is even less than a snapshot. To put its 13.8 billion years of
existence into perspective, we are the proverbial blimp on a long endless stretching
line. That is something to be humble about, although many people take
themselves for the center of the universe (they are not!).
Overall, this was one of the higher-echelon lectures I had
the pleasure of attending at this outstanding series. They did not only provide
snacks in the form of popcorn, but also sufficient food for thought and Gates
Jr. was apart from his credentials and experience also humorous and down-to-earth.
I am already counting down to the next talk; hopefully, my son will come along
not only to learn something new along the way but so I could have him ask my own questions
during the Question & Answer session.
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