Of Particular Significance

Category: Science and Modern Society

There is no room for politics when we are playing for keeps. So say four Republicans, who served four Republican presidents as heads of the Evironmental Protection Agency.  The climate is changing in Washington D.C., though still more slowly than in the Arctic.

My own view? Our uncontrolled experiments on our one and only planet must be curbed.  Scientific evidence from many quarters show definitively that the Earth is warming.  Science can give us arguments, strong but not airtight, that we may be responsible (mainly via carbon emissions, and the greenhouse effect of carbon dioxide).  It cannot tell us reliably how bad the risks of a warmer Earth will be; there are too many uncertainties.  But it seems to me that these are risks we shouldn’t be taking, period.  We don’t get to mail-order another planet if we mess this one up.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON August 2, 2013

Did you know that another name for Minneapolis, Minnesota is “Snowmass”?  Just ask a large number of my colleagues, who are in the midst of a once-every-few-years exercise aimed at figuring out what should be the direction of the U.S. particle physics program.  I quote:

  • The American Physical Society’s Division of Particles and Fields is pursuing a long-term planning exercise for the high-energy physics community. Its goal is to develop the community’s long-term physics aspirations. Its narrative will communicate the opportunities for discovery in high-energy physics to the broader scientific community and to the government.

They are doing so in perhaps the worst of times, when political attacks on science are growing, government cuts to science research are severe, budgets to fund the research programs of particle physicists like me have been chopped by jaw-dropping amounts (think 25% or worse, from last year’s budget to this year’s — you can thank the sequester).. and all this at a moment when the data from the Large Hadron Collider and other experiments are not yet able to point us in an obvious direction for our future research program.  Intelligent particle physicists disagree on what to do next, there’s no easy way to come to consensus, and in any case Congress is likely to ignore anything we suggest.  But at least I hear Minneapolis is lovely in July and August!  This is the first Snowmass workshop that I have missed in a very long time, especially embarrassing since my Ph.D. thesis advisor is one of the conveners.  What can I say?  I wish my colleagues well…!

Meanwhile, I’d like to comment briefly on a few particle physics stories that you’ve perhaps seen in the press over recent days. I’ll cover one of them today — a measurement of a rare process which has now been officially “discovered”, though evidence for it was quite strong already last fall — and address a couple of others later in the week.  After that I’ll tell you about a couple of other stories that haven’t made the popular press… (more…)

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON July 31, 2013

A perfect storm of computer trouble (ok, maybe not perfect, but pretty darn good) has kept me from finishing any new articles, though this should come to an end this week. But while waiting for things to improve, I’ve been pointing your attention (here and here) to various signs that China, which is investing heavily in science and engineering, is catching up to the U.S. and its political and economic allies. The course I taught earlier this month, in which I gave an introduction to particle physics and to the Higgs field and particle, was followed by a couple of lectures by an economist teaching at Williams College, and he pointed me to one other article that I had not been aware of. This one is from the New York Times; I can’t vouch for its accuracy, and I don’t know anything about the main authors (Charles Duhigg and Keith Bradsher), so… buyer beware. The article has to do with the quintessential modern company: Apple.

Let me quote from the article, to pique your interest:

—

It isn’t just that workers are cheaper abroad. Rather, Apple’s executives believe the vast scale of overseas factories as well as the flexibility, diligence and industrial skills of foreign workers have so outpaced their American counterparts that “Made in the U.S.A.” is no longer a viable option for most Apple products.

—

Another critical advantage for Apple was that China provided engineers at a scale the United States could not match. Apple’s executives had estimated that about 8,700 industrial engineers were needed to oversee and guide the 200,000 assembly-line workers eventually involved in manufacturing iPhones. The company’s analysts had forecast it would take as long as nine months to find that many qualified engineers in the United States.

In China, it took 15 days.

Companies like Apple “say the challenge in setting up U.S. plants is finding a technical work force,” said Martin Schmidt, associate provost at the Massachusetts Institute of Technology. In particular, companies say they need engineers with more than high school, but not necessarily a bachelor’s degree. Americans at that skill level are hard to find, executives contend. “They’re good jobs, but the country doesn’t have enough to feed the demand,” Mr. Schmidt said.

—

“We shouldn’t be criticized for using Chinese workers,” a current Apple executive said. “The U.S. has stopped producing people with the skills we need.”

—

Of course, I’m cherry-picking out of a long article.  While these quotations do capture its dominant thread, that thread is woven together with several others.  I certainly don’t pretend to have the solution to the multi-faceted problems that it explores.  But I do think it is important that citizens of the U.S. and its friends  not have their heads in the sand, pretending nothing  is changing.   China isn’t just a huge, cheap, unskilled labor force; it also has a growing, highly-skilled labor pool, able already to out-compete its U.S. counterparts.  This is not an accident.  The Chinese government is making good choices.  Perhaps the experts in China have learned from South Korea; anyone ever heard of Samsung?  If you think all Samsung does is copy Apple’s phones, your head is in the sand.  Look it up.

We live in a world dominated by science, engineering and technology.  If we lose our edge in these areas, we may, in the long term, find ourselves no longer important players in that world, with economic and political costs that could be very high indeed.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON June 24, 2013

While we’re on the subject of China… The US has had space stations for decades, and people here now show limited interest, barely caring that the US currently has no rocket that can carry people to space.  Now China has its own rockets and space station, and, with plenty of excitement and national pride, is putting them to good use.

Yesterday, some 60 million Chinese children watched a presentation and discussion from space, involving astronaut Wang Yaping and a Beijing classroom, on basic physics principles: mass versus weight, gyroscopic motion, etc.

I hope she managed to explain that there is gravity in space…

Note Added: The full lecture, with English voice-over, is available here: http://www.youtube.com/watch?v=OUAuZnpoZ58.  Thank you, Yan Wenbin.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON June 20, 2013

Today, two articles that I found especially interesting and that I recommend to you:

China’s Tianhe-2 retakes fastest supercomputer crown: A China-based supercomputer has leapfrogged rivals to be named the world’s most powerful system.

This article caught my eye because I think it highlights the degree to which China is rapidly catching up with Europe, the United States and Japan on certain technologies that matter a great deal.  China, unlike the US, which has been generally cutting its scientific spending since around 2000, is putting a tremendous amount of its money into science and engineering, aiming to surpass the world’s current technology leaders. Though they’re still making their way forward, their efforts are starting to pay off.  Since supercomputers are widely used in developing new technology (e.g., simulating novel aircraft), leadership in supercomputers, should they attain it, will have many benefits for the Chinese economy and military.  Lest you think they are merely copying what others have already done, you should make sure to read the last half of the article. Will it take another Sputnik moment to make anti-scientific politicians properly nervous about the cost of falling behind?

The second article of interest was this one (though the headline is a bit overstated…)

Roman Seawater Concrete Holds the Secret to Cutting Carbon Emissions:  Berkeley Lab scientists and their colleagues have discovered the properties that made ancient Roman concrete sustainable and durable

This great story evokes the tragic romance of knowledge lost for centuries — along the lines of the Stradivarius violins that no violin maker today can match. And it weaves several interesting strands.  First is the fact that modern concrete begins to fall apart in seawater in half a century, while the Romans managed to make a concrete that can survive seawater for two millenia.  How did they do it?  

Well, that’s the second interesting part: researchers claim to have figured it out, using one of the most modern of scientific techniques — flashes of ultraviolet or X-ray light, emitted by high-energy electrons traveling at nearly light-speed, in a particle accelerator (the Advanced Light Source). The Advanced Light Source is located at Lawrence Berkeley Laboratory, in the hills above the university we call “Berkeley” (officially the University of California at Berkeley).

The third interesting thing: the researchers learned that the Romans’ concrete, made mainly from lime (from limestone) and volcanic ash (pulverized rock created in abundance during any energetic volcanic eruption), used less lime and was formed at much lower temperatures than modern concrete. If modern concrete were replaced (when appropriate and possible) with a similar material, its production would use much less energy. And since concrete production is a notable contributor to overall energy use, this is not a minor effect.  In short, it’s just possible that this could be one of those rare situations where everyone wins: either the Roman concrete, or, more likely, a modern/ancient hybrid, may turn out to be more durable, more fuel-efficient to produce, and perhaps cheaper than the forms of concrete we use today.  

Thank goodness! The US government is still funding some important research!  Oh.  Right.  I guess it should be mentioned that initial funding for this work came from King Abdullah University of Science and Technology in Saudi Arabia.  Apparently they have a lot of volcanic ash lying about…

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON June 19, 2013

I was sent or came across a few interesting links that relate to things covered on this blog and/or of general scientific interest.

It was announced yesterday that the European Physical Society 2013 High Energy Physics Prize was awarded to the collaboration of experimental physicists that operate the ATLAS and CMS experiments that discovered a type of Higgs particle, with special mention to Michel Della Negra, Peter Jenni, and Tejinder Virdee, for their pioneering role in the development of ATLAS and CMS.  Jenni and Virdee are both at the LHCP conference in Barcelona, which I’m also attending, and it has been a great pleasure for all of us here to be able to congratulate them in person .

One thing that came up a couple of times regarding weather forecasting (for instance, in forecasting the path of Hurricane Sandy) is that the European weather forecasters are doing a much better job of predicting storms a week in advance than U.S. forecasters are.  And I was surprised to learn that one of the the main reasons is simple: U.S. forecasters have less computing power than their European counterparts, which sounds (and is) ridiculous.  The new director of the U.S. National Weather Service, Louis Uccellini, has been successful in his goal of improving this situation, as reported here.  [Thanks to two readers for pointing me to this article.]

One of the possible interpretations of the new class of high-energy neutrinos reported by IceCube (see yesterday’s post) is that they come from the slow decay of a small fraction of the universe’s dark matter particles, assuming those particles have a mass of a couple of million GeV/c². [That’s much heavier than the types of dark matter particles that most people are currently looking for, in searches that I discussed in a recent article.]  I didn’t immediately mention this possibility (which is rather obvious to an expert) because I wanted a couple of days to think about it before generating a stampede or press articles.  But, not surprisingly, people who were paying more attention to what IceCube has been up to had recently written a paper on this subject.  [Here’s an older, related paper, but at much lower energy; maybe there are other similar papers that I don’t know about?]  At the time these authors wrote this paper, only the two highest energy neutrinos — which have energies that, within the uncertainties of the measurements, might be equal (see Figure 2 of yesterday’s post) — were publicly known.  In their paper, they predicted that (just as any expert would guess) in addition to a spike of neutrinos, all at about 1.1 million GeV, one would also find a population of lower-energy neutrinos, similar to those new neutrinos that IceCube has just announced. So yes, among many possibilities, it appears that it is possible that the new neutrinos are from decaying dark matter.  If more data reveals that there really is a spike of neutrinos with energy around 1.1 million GeV, and the currently-observed gap between the million-GeV neutrinos and the lower-energy ones barely fills in at all, then this will be extremely strong evidence in favor of this idea… though it will be another few years before the evidence could become convincing.  Conversely, if IceCube observes any neutrinos near but significantly above 1.1 million GeV, that would show there isn’t really a spike, disfavoring this particular version of the idea.

Regarding yesterday’s post, it was pointed out to me that when I wrote “The only previous example of neutrinos being used in astrophysics occurred with the discovery of neutrinos from the relatively nearby supernova, visible with the naked eye, that occurred in 1987,” I should also have noted that neutrinos were and are used to understand the interior of the sun (and vice versa).  And you could even perhaps say that atmospheric neutrinos have been used to understand cosmic rays (and vice versa.)

In sad news, in the “all-good-things-must-come-to-an-end” category, the Kepler spacecraft, which has brought us an unprecedented slew of discoveries of planets orbiting other stars, may have reached the end of the line (see for example here), at least as far as its main goals.  It’s been known for some time that its ability to orient itself precisely was in increasing peril, and it appears that it has now been lost.  Though this has occurred earlier than hoped, Kepler survived longer than its core mission was scheduled to do, and its pioneering achievements, in convincing scientists that small rocky planets not unlike our own are very common, will remain in the history books forever.  Simultaneous congratulations and condolences to the Kepler team, and good luck in getting as much as possible out of a more limited Kepler.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON May 17, 2013

I’m still seeing articles in the news media (here’s one) that say that the majority of Americans think the recent sequester in the US federal budget isn’t affecting them. These articles implicitly suggest that maybe the sequester’s across-the-board cuts aren’t really doing any serious damage.

Well, talk to scientists, and to research universities and government laboratories, if you want to hear about damage.

I haven’t yet got the stomach to write about the gut-wrenching destruction I’m hearing about across my own field of particle physics — essential grants being cut by a quarter, a third, or altogether; researchers being forced to lay off long-standing scientific staff whose expertise, of international importance, is irreplaceable; the very best postdoctoral researchers considering leaving the field because hard-hit universities across the country won’t be hiring many faculty anytime soon… There’s so much happening simultaneously that I’m not sure how I can get my head around it all, much less convey it to you.

But meanwhile, I would like to point you to a strong and strongly-worded article by Eric Klemetti, a well-known blogger and professor who writes at WIRED about volcanoes.  Please read what he wrote, and consider passing it on to those you know.  Everyone needs to understand that the damage that’s being done now across the U.S. scientific landscape, following a period of neglect that extends back many years before the recession, will last a generation or more, if it’s not addressed.

These deep, broad and sudden cuts are a short-sighted way of saving money.  Not only do they waste a lot of money already spent, the long-term cost of the permanent loss of expertise, and of future science and technology, is likely to exceed what we’ll save.  It’s not a good approach to reducing a budget.  So tell your representatives in Congress, and anyone who will listen: Scientific research isn’t excess fat to be chopped off crudely with a cleaver; it’s fuel for the nation’s future, and it needs wiser management than it’s receiving.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON May 15, 2013

The scourge of “terrorism” — for today’s purposes, let’s take the word to mean attacks on civilians perpetrated by individuals or by small, stateless groups — is a part of human existence going back as far as you want to look. If a person has what he or she views as a grievance, then attacking people who are loosely connected to that grievance, in order to kill and maim some of them and frighten the rest, is obviously one of the options, immoral and hideous as it may be. There’s nothing modern about the strategy of terror.

What’s new about terrorism in the modern world is science. Science, via the technology that it makes possible, is a great multiplier. It allows an individual, or a small group, to exploit power inherent in nature, turning a task that no human could perform, or that would take a cast of thousands, into something that can be done with ease by a few people, or even just one. Of course this multiplied power has many benefits for us as individuals and for society as a whole; think of trains, tunnel-boring machines, skyscraper cranes, snow-blowers, pneumatic drills, aircraft engines, power plants, and on and on. But it also poses many risks and challenges that we have to face, as individuals and as a global civilization. (more…)

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON April 24, 2013

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!

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON April 9, 2013

In a letter entitled “Am I Wrong?”, Bruce Alberts, Editor-in-Chief of the major journal Science, asks how the United States has gone so far off course.  The leading nation in a technological age has lost sight of its scientific foundation; what will be the consequences?

A mere twenty years ago, this nation was clearly the best place in the world to do scientific research.  Since 2000 the decline has been precipitous, and though the U.S. still surely ranks in the top ten, few would say it clearly is the best anymore.  In general, the country remains a relatively great place to live and work.  But any excellent young scientist from abroad has to think carefully about coming to or staying in the U.S. for a career, because there might not be enough money to support even first-rate research.  Similarly, any young U.S. scientist, no matter how devoted to this country and no matter how skilled, may face the tough choice of either going abroad or abandoning his or her career. (It’s not just young people either, as I can personally attest.)

Whereas before the year 2000 it was easy for U.S. universities to attract the best in the world to teach and do research at their institutions, and to train the next generation of American scientists, the brain drain since that time has been awful.  (I see this up close, as more and more often I fail to hire talented individuals specifically because they see a better scientific and personal future outside the United States.)  And it is getting worse.  All of this affects our economy’s future, our society’s health, and even our ability to defend ourselves, especially since some of the most active spending on science is being done by countries that are hostile or potentially hostile to the free world.

It’s easy to blame this on the recession.  “Oh, these are bad times and we all have to share the pain.”  That’s true, but this problem started long before 2008.  The system became threadbare during the Bush administration, and now, in the ensuing recession and political chaos, it’s at risk of falling apart.

Please forward this letter by Mr. Alberts to your friends.  This is serious business with long-term consequences.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON March 28, 2013

Search

Buy The Book

Reading My Book?

Got a question? Ask it here.

Media Inquiries

For media inquiries, click here.