Tag Archives: PublicTalks

LHC Starts Collisions; and a Radio Interview Tonight

In the long and careful process of restarting the Large Hadron Collider [LHC] after its two-year nap for upgrades and repairs, another milestone has been reached: protons have once again collided inside the LHC’s experimental detectors (named ATLAS, CMS, LHCb and ALICE). This is good news, but don’t get excited yet. It’s just one small step. These are collisions at the lowest energy at which the LHC operates (450 GeV per proton, to be compared with the 4000 GeV per proton in 2012 and the 6500 GeV per proton they’ve already achieved in the last month, though in non-colliding beams.) Also the number of protons in the beams, and the number of collisions per second, is still very, very small compared to what will be needed. So discoveries are not imminent!  Yesterday’s milestone was just one of the many little tests that are made to assure that the LHC is properly set up and ready for the first full-energy collisions, which should start in about a month.

But since full-energy collisions are on the horizon, why not listen to a radio show about what the LHC will be doing after its restart is complete? Today (Wednesday May 6th), Virtually Speaking Science, on which I have appeared a couple of times before, will run a program at 5 pm Pacific time (8 pm Eastern). Science writer Alan Boyle will be interviewing me about the LHC’s plans for the next few months and the coming years. You can listen live, or listen later once they post it.  Here’s the link for the program.

Giving Public Talk Jan. 20th in Cambridge, MA

Hope all of you had a good holiday and a good start to the New Year!

I myself continue to be extraordinarily busy as we move into 2015, but I am glad to say that some of that activity involves communicating science to the public.  In fact, a week from today I will be giving a public talk — really a short talk and a longer question/answer period — in Cambridge, just outside of Boston and not far from MIT. This event is a part of the monthly “CafeSci” series, which is affiliated with the famous NOVA science television programs produced for decades by public TV/Radio station WGBH in Boston.

Note for those of you have gone before to CafeSci events: it will be in a new venue, not far from Kendall Square. Here’s the announcement:

Tuesday, January 20th at 7pm (about 1 hour long)
Le Laboratoire Cambridge (NEW LOCATION)
http://www.lelaboratoirecambridge.com/
650 East Kendall St, Cambridge, MA

“The Large Hadron Collider Restarts Soon! What Lies Ahead?”

Speaker: Matthew Strassler

“After a long nap, the Large Hadron Collider [LHC], where the Higgs particle was discovered in 2012, will begin operating again in 2015, with more powerful collisions than before. Now that we know Higgs particles exist, what do we want to know about them? What methods can we use to answer our questions? And what is the most important puzzle that we are hoping the LHC will help us solve?”

Public Transit: Red line to Kendall Square, walk straight down 3rd Street, turn right onto Athenaeum Street, and left onto East Kendall

Parking: There is a parking deck – the 650 East Kendall Street Garage – accessible by Linskey Way.

Wednesday: Sean Carroll & I Interviewed Again by Alan Boyle

Today, Wednesday December 4th, at 8 pm Eastern/5 pm Pacific time, Sean Carroll and I will be interviewed again by Alan Boyle on “Virtually Speaking Science”.   The link where you can listen in (in real time or at your leisure) is

http://www.blogtalkradio.com/virtually-speaking-science/2013/12/05/alan-boyle-matt-strassler-sean-carroll

What is “Virtually Speaking Science“?  It is an online radio program that presents, according to its website:

  • Informal conversations hosted by science writers Alan Boyle, Tom Levenson and Jennifer Ouellette, who explore the explore the often-volatile landscape of science, politics and policy, the history and economics of science, science deniers and its relationship to democracy, and the role of women in the sciences.

Sean Carroll is a Caltech physicist, astrophysicist, writer and speaker, blogger at Preposterous Universe, who recently completed an excellent and now prize-winning popular book (which I highly recommend) on the Higgs particle, entitled “The Particle at the End of the Universe“.  Our interviewer Alan Boyle is a noted science writer, author of the book “The Case for Pluto“, winner of many awards, and currently NBC News Digital’s science editor [at the blog  “Cosmic Log“].

Sean and I were interviewed in February by Alan on this program; here’s the link.  I was interviewed on Virtually Speaking Science once before, by Tom Levenson, about the Large Hadron Collider (here’s the link).  Also, my public talk “The Quest for the Higgs Particle” is posted in their website (here’s the link to the audio and to the slides).

Strings: History, Development, Impact

Done: All three parts of my lecture for a general audience on String Theory are up now…

Beyond the Hype: The Weird World of String Theory (Science on Tap, Seattle, WA, September 25, 2006). Though a few years old, this talk is still very topical; it covers the history, development, context and impact of string theory from its earliest beginnings to the (then) present.

Be forewarned: although the audio is pretty good, this was an amateur video taken by one of the organizers of the talk, and because the place was small and totally packed with people, it’s not great quality… but good enough to follow, I think, so I’ve posted it.

  1. Part 1 (10 mins.): String theory’s beginnings in hadron physics and the early attempts to use it as a theory of quantum gravity.
  2. Part 2 (10 mins.): String theory was shown to be a mathematically consistent candidate for a theory of all of quantum gravity and particle physics, and became a really popular idea.
  3. Part 3 (9 mins.): How string theory evolved through the major technical and conceptual advances of the 1990s.

By the way, if you’re interested in other talks I’ve given for a general audience, you can check out my video clips, which include a recent hour-long talk on the Quest for the Higgs Boson.

A Short Break

Personal and professional activities require me to take a short break from posting.  But I hope, whether you’re a novice with no knowledge of physics, or you’re a current, former, or soon-to-be scientist or engineer, or you’re somewhere between, that you can find plenty of articles of interest to you on this site.  A couple of reminders and pointers:

* If you haven’t yet seen my one-hour talk for a general audience, “The Quest for the Higgs Boson”, intended to explain accurately what the Higgs field and particle are all about, while avoiding the most common misleading short-cuts, it’s available now, along with a 20-minute question and answer session.

* If you want a slightly more technical and written discussion of the Higgs field and particle, complete with animated images, and suitable for people who may once have had a semester or two of university physics and math, try this series of articles first, and then go to this series.

* If you’d like to better understand the language of “matter”, “mass”, and “energy” that is everywhere in popular explanations of science, but eternally confusing because of how different authors choose to talk about these subjects, you might find some useful tips in these articles: #1, #2, #3, #4.

* If you need a reminder about what “ordinary matter” (i.e. things like pickles, people and planets) is made of, try this series, which goes all the way from molecules down to quarks.

* If you’re curious about what “particle/anti-particle annihilation” does and doesn’t mean, try this article.

* And here are the types of particles and forces of nature that we know about, and (for the moderately advanced reader) here’s how they’d be rearranged if the Higgs field were turned off.

Hopefully there’s something on that list that interests you, and many links within those articles to other things that may even interest you more.  Have fun exploring!  And stay tuned; I’ll be writing more in the near future…

My Public Talk on the Higgs, Now Online

One year ago today, I arrived, bleary-eyed from my overnight flight, at the CERN laboratory in Geneva, Switzerland, host of the Large Hadron Collider.  Everyone at the lab was very excited, anticipating what promised to be the biggest event during my career in particle physics — the announcement of the discovery, or at least strong evidence, of something resembling a type of Higgs particle.  The following day did not disappoint, nor did the ensuing weeks of thinking and discussion and hard work.  A year later, we no longer wonder whether this is a type of Higgs particle; instead we have moved on to ask which type it is, and whether it has cousins — other types of Higgs particles still waiting to be found.

Since that time, I’ve been working to find new methods of explaining particle physics, and specifically the Higgs field and particle, to a variety of audiences, with a diversity of backgrounds and with different amounts of time to spare.

  • For the average person who wants a short story, I wrote a brief article about “Why the Higgs Particle Matters”, my most popular piece ever.
  • Then I wrote a long sequence of articles — actually two sequences, one about fields and particles, and one specifically about how the Higgs field works — intended for people who have had the equivalent of first-year university physics.
  • I recently gave a set of four 90-minute classes intended for highly interested non-experts, assuming little or no background in math or science.
  • And I developed a new one-hour public talk (see below), entitled “The Quest for the Higgs Boson”, for a general audience, in which I tried to explain, as accurately as possible but with no math at all, what fields and particles are, how a Higgs field can give mass to the known elementary particles, and what finding and studying Higgs particles is all about.

That one-hour talk was first delivered a few months back, as part of the Nick and Maggie DeWolf Public Lecture Series, at the Wheeler Opera House in Aspen, Colorado.  It was filmed by a local TV station, GrassRoots Community Television.  And they have made this film available online. Click here to reach the GrassRoots TV page, then click “Watch Now” on the right-hand side. [It’s a .wmv file that should, after a little delay, begin streaming; if it doesn’t, it will laboriously download, which may take quite a while.  In any case you’ll want a good internet connection. And if it is super-slow, try again another day; their server could easily get overloaded, I suspect.]

By the way, the talk is preceded by about 5 minutes of introductory remarks by Professor Howard Haber (a Higgs-particle expert who has been mentioned before on this blog), and concludes with about 20 minutes of questions from the audience, so altogether the film is almost 90 minutes long.

Who Learns the Most in a Science Class?

I’m back, after two weeks of teaching non-experts in a short course covering particle physics, the Higgs field, and the discovery of the Higgs particle.  (The last third of the course, on the politics and funding of particle physics and science more broadly, is wisely being taught by a more disinterested party, an economist with some undergraduate physics background.)  And I’ve been reminded: One of the great joys (and great secrets) of teaching is that the teacher always learns more than the students do.

At least, this is generally true for a new class that the teacher hasn’t taught before. In many university physics departments, and elsewhere, there is an informal requirement that professors teach a class no more than three years in a row. [Let us ignore for the moment that all of this will be overturned in the coming years by the on-line revolution; we can discuss the possible consequences later.] After the third year, they are expected to switch and teach something else. Now you might think that the benefits of the division of labor would suggest a different approach; after all, shouldn’t each professor perfect a course, become the expert, and teach it year in, year out? This usually doesn’t work (though there are exceptions) because each professor’s interaction with a new course has a natural life cycle. Continue reading

Science and the Common Good: A College Visit

Yesterday I gave a public talk at Ursinus College, a liberal arts college in aptly named Collegeville, Pennsylvania. [For those outside the U.S.; a `college’ in the U.S. is a university whose students are all undergraduates, mainly 18-22 years old; and a “liberal arts college”  aims to give students a broad education in the arts and sciences, along with more focused training in their chosen discipline.] My visit was sponsored by the college’s Center for Science and the Common Good, an impressive little program funded by the Howard Hughes Medical Institute (kudos to them!).  Its goal is to assure that the Center’s `fellows’ — the students in the program — are not only trained in their scientific fields but also become versed in thinking broadly about the role of science in our culture and society, and about how science is communicated to the public.

These wider issues are ones I think about a lot — I myself was educated at a liberal arts college — and are what motivated me to start this website and blog.  So I was honored that the Center invited me to visit. And they kept me (pleasantly) busy! In addition to the public talk, I spoke at length with the fellows of the Center about the role of science and scientists in society, as well as about the Center’s program and their career plans, and I also gave the undergraduate physics majors a slightly more technical tour of modern particle physics.

Since the Center was my host, my public talk was somewhat different from ones I’ve given previously.  Rather than focus entirely on the science behind the Higgs particle and field, I included some comments concerning the role of scientists in communicating science to the public. Among the meta-scientific questions I touched on were these:

  • What role should and can be played by blogs and websites run by scientists?
  • Can (or should) anything be done about the wildly inaccurate science reporting that one so often sees in the media?
  • Is it really that important that the public be informed about scientific research — given that public knowledge of the details of law, medicine, construction, accounting, plumbing, and other technical fields is also very limited?

I’ve got my own (tentative) answers to these questions, but if you’d like to weigh in, I’d be interested in your opinions. (If you do decide to make a comment, please feel free to include a parenthetic remark describing how much science you yourself know, and whether you learned it, say, in college, from magazines or popular books, etc.  This will give us all some perspective on what might shape your views.)

Thanks again to Ursinus College for the invitation and a very interesting visit!