Showing posts with label being a scientist. Show all posts
Showing posts with label being a scientist. Show all posts

03 April 2015

Citizen Science Versus Science

It's impolitic to say so, but I dislike the term 'Citizen Science'.  Scientists are supposed to be embracing 'Citizen Science' and all that.  But I can't get rid of the feeling that it's a patronizing term.  Nor can I ignore the echo that scientists are something other than citizens.  Lose-lose.

The patronizing, maybe you don't see it.  But consider some other realms of activity.  I am, for instance, a runner.  Not a 'citizen runner', just a runner.  I have been in races with some people who were anywhere from slow beginners to world record holders.  In one race, I ran a 10 km against the (then) current men's marathon world record holder (Khalid Khannouchi) and the soon-to-be women's marathon world record holder (Catherine Ndereba).  No, I'm not great.  That's the point.  They ran their 10k, in about 28 and 30 minutes, respectively.  And I ran mine in about 45 minutes.  They were much better than I.  But we all (about 3000 of us) ran the same race, by the same rules, and were called the same thing -- runners.

Or consider music.  At one point, I played clarinet.  With tons of practice, I was able to get reasonably good results and sat near the top of my section in high school.  We were pretty good for a high school band, so maybe I was pretty good clarinetist back then.  The thing is, I know what seriously good musicians were like -- my sisters were both talented, one exceedingly so.  They were oboist and flautist.  The flautist might have been able to turn professional successfully.  Chose not to.  But you notice, again, same terms -- clarinetist, oboist, flautist -- used for us nonprofessionals as for the professionals. 

My take is, let's all go do science.  Not citizen science, just science, period.  Same as music or sports or anything else, some of us make a living at it, and many more will do it for the love of it.  But we're all engaging in the same activity, so let's also call it by the same name.  Same as we do for any other activity.

17 February 2015

Chandler and the Chandler Wobble

The fact that the earth wobbles was expected/predicted long before it was observed, which makes for a couple stories about the nature of science and the people who do it.  The story of the Chandler wobble starts up almost a century before Chandler was born.  In 1765, the Swiss mathematician Leonhard Euler, whose name appears throughout mathematics and physics, was examining the mathematics for conservation of angular momentum on a rotating spheroid -- i.e., something like the earth.  It turned out that such a body could have a wobble on top of its regular rotation.  Given what was known about the shape of the earth then, Euler predicted a period for his wobble of about 305 days.  (Modern information doesn't change this number much.)

The magnitude of such a wobble could also be estimated from the law of conservation of angular momentum, and was somewhere around 0.1 seconds of arc.  That made for a difficult observation in 1765, and it wasn't until 1841 that astronomers started trying to observe this 10 month (305 day) wobble.  Given data analysis methods of the day -- pencil and paper -- analyses were done looking to see if there was a signal with a 10 month period.  No such signal was found, even though several people looked.  Side note being that one of the astronomers who looked in to this was Friedrich Bessel, who was the first person to measure the parallax (thence distance) to a star.  Quality of observing skill was not an issue in his failure to detect the wobble. 

Enter, then, in the late 1880s the next start of our story, and some options of how to tell it.  I could tell the story about a 'lone genius, toiling in obscurity until his great moment'.  It would be doing some fair amount of violence to reality, but that hasn't stopped all story tellers.  Chandler was indeed not being paid to do science.  He made his living as a merchant.  But keep in mind, though, that in the 1800s, 'scientist' even as a label was fairly new, and very few people who were scientists, or rather, who were doing science, did it full time.  Many were men of independent means who used their free time to try to understand the world.

Chandler was one such, but his roots in astronomy extended far back -- to high school.

15 October 2013

Diversity in Science

"First rate minds try to surround themselves with first rate minds.  Second rate minds try to surround themselves with third rate minds."  That is a pragmatic point for today's topic.  Whether I'm a first rate mind myself, I enjoy being around them.  And it's obvious that science does best when we have the best people involved.  My actual starting point is the morality that it is wrong to discriminate against people for who they are.

What brings this up, and out of my usual range of posting, is events over the weekend that happened to Danielle Lee, @dnlee5, a biologist and blogger at Scientific American.  Early in the process, she gave an interview and said: “If that many people were going to come out in support of me, I’d rather it be in support of one of the missions that’s going to make me redundant. I am trying to make myself redundant, truth be told. It is a lonely place to constantly be the only one like you in science,” "  One such mission being increasing diversity in science.

Very normal for my posting is the message 'you can do science'.  But that doesn't touch preconceptions people might have about who 'you' can be (quick answer: anyone).  I've heard that the common image of a scientist is a middle-aged white man with bad hair, wearing a lab coat.  Fortunately I'm nothing like that -- I've never worn a lab coat.  I've also heard that it's better to talk about living people than people like George Washington Carver and Marie Curie (still ... go read their biographies).

I'll limit myself even further, just to people that I've met personally.  The fact that I know these people does not mean (I'm looking at the nitwits* who might have snuck in to the room) that there's no discrimination in science any more.  It does underscore the fact that it's unconscionable.  If you don't accept the moral argument, then because of the pragmatic -- these are first rate people you would be refusing to let do good work.  I won't be listing names for all, which is something of a question.  On one hand, taking away someone's name is more than a little depersonalizing and can be offensive in its own right.  On the other, I've heard more than once from people that they don't like to be trotted out to be 'the woman' or the like -- that they just want to go do good science, a privilege accorded the pale males who just want to go do good science. 
  • Warren Washington is an African-American man who has won many awards, and been a leader in climate modelling.  He was also the doctoral advisor to Claire Parkinson.
  • Claire Parkinson a woman who has been studying sea ice for decades now, and wrote a book (now in second edition) on climate modeling with Warren Washington.  Also wrote a very good book solo on the history of science and math.
  • Margaret Davidson   A woman who has been director of both NOAA's Coastal Services Center and its National Ocean Service.  She lead (we met about the time she started so I know it was her idea and plan) the CSC towards and in its approach of working with communities as opposed to issuing edicts.  (NOAA being furloughed, her bio is offline).
  • Jamese Sims An African-American woman who did her thesis on modeling hurricane intensity and now works in NOAA/NWS on relating weather information to health and safety.
  • A blind PhD cognitive psychologist.  As much as I read, I boggle at someone who takes in entire textbooks by listening.  We played cards once, which I think is hard if you can't see them.  (Braille doesn't cover the fact that you can't 'see' them all at once.)  Much better card player than me, too.
  • A gay, disabled, African-American man.  There's an article about straight white male being the lowest difficulty setting for life, by John Scalzi.  This guy has been playing on the grandmaster setting.  And has remained amazingly not-bitter.  I'd last maybe a few weeks in his place.
  • James West  an African American man, inventor of the microphone that's used in several billion devices (you probably have several yourself), member of the National Inventor's Hall of Fame.
  • Jeanette Epps is an African-American woman, astronaut, inventor, engineer.
  • A female Muslim scientist from India -- we talked, well before 9/11, about the concept of jihad and what it meant.  She talked; I asked questions and listened to answers.  She said that the jihad was an internal matter -- the struggle with yourself to live a virtuous life.  I've since heard this from a number of other Muslims.
  • A Hispanic male mathematician/oceanographer
  • A Hispanic female observational oceanographer
  • A Hispanic female numerical hurricane modeller (was also a summer student of mine)
  • A transgendered, gay, man -- another for playing life on the grandmaster setting.  Incredibly broadly talented across math/science/engineering/technology _and_ languages. (Human ones as well as computer ones.)
And many more.  This list is biased towards African-Americans and women because it was prompted by an African-American woman's experiences.  It has long been obvious to me that first rate minds come in all packages, from all backgrounds.

Second rate minds try to surround themselves with third rate minds.  They can't cope with people who are as or more talented and hard working than they are.  If they must encounter a first rater, they're the ones fastest to reach for the bigotry encountered by @dnlee5.


* I'd be using stronger language except for this blog's language standards.

07 October 2013

Journalists' desires

I've seen several articles one telling scientists what journalists want, and why, and some going in to how.  Most recently http://www.scidev.net/global/communication/practical-guide/what-journalists-want-from-scientists-and-why.html It's all useful advice, and the one time I was allowed to speak to a journalist, I had a very good experience.

But, one thing very lacking in these articles is discussion of what it is that scientists may expect in return, why it is worth the scientist's time, and why it is worth the potential risk to professional standing and employment.

Advice: Journalists are on deadline -- so drop everything you're doing in order to answer their questions.
Q: Ok.  It's obvious why journalists want (us) scientists to drop what we're doing in order to answer their questions.  But what is the journalist promising in return?  Accurate quoting?  Many scientists have experienced the contrary.  Being quoted at all?  Not necessarily, we might not say anything quoteworthy in the journalist's opinion.  Chance to review the article prior to publication for accuracy?  Often refused on grounds of journalistic independence.

Advice: Answer all the journalist's questions, to ensure their understanding.
Q: Makes sense if we're going to talk to a journalist at all that we do what is needed for them to understand what we're saying.  But now it is a matter of not only dropping everything we're doing, but doing so for indefinitely long period.

Advice: Speak their language.  (Not English vs. Swahili so much, but glaciologist vs. ordinary citizen.)
Q: So not only do we drop everything we we're doing, for indefinite period, but even though we were interrupted in the middle of thinking hard about some obscure part of our field, we're to immediately shift mental gears from our frame for professional thinking to speaking to random citizens?  If I'm in the midst of writing a paper or proposal -- where I have to saturate in professional language -- it's going to be a while before I come down to being able to talk understandably to my wife (a bright person, but not a professional in my field so my reference for journalists; my wife understands this, journalists don't seem to.).

Even just in the context of speaking to a journalist, there are some costs and challenges to the scientist.  But let's go a little farther in what is happening for the scientist

05 September 2013

Do scientists have special obligations to society?

The subject line comes from Janet Stemwedel, who asks the question.  There are two spots to answer, one if you are a scientist, and one if you're not.  'scientist' is defined in the articles.
 
If you're a scientist

Nonscientists' comments

I think it's a worthwhile and interesting question, and encourage you all to go answer.  Feel free to leave a copy of your answer here.  Or do some free-range commenting on the question here if there's a reason not to post it over on Janet's blogs.

Added:
Something which hasn't been brought up (yet) at Janet's blogs is this:
It is illegal to practice law without a license, to pretend to be a medical doctor, or in many states to claim to be an engineer if you don't have appropriate certification.  There's no such licensing or certification process for 'scientist'. 

Does that mean scientists have more, or fewer, or different, obligations to society than doctors, lawyers, or engineers?

07 June 2013

Science's Spock Problem

XKCD captured perfectly where scientists start from in terms of relating to others about their subject:
What we do, the part of the universe we study, is wonderful, fascinating, and we want to run around sharing our wonderful discoveries with everybody.  Including when it's dog vomit slime molds.  See also my niece's write up from jr. high about knight anoles.

And that's what makes the Spock problem such a problem.  What I mean by this is that there is heavy cultural (in the US at least) expectation that scientists _are_, or at least _should_ be, like Mr. Spock -- emotionless, heartless, 'rational', and fundamentally not human.  Humans, and scientists are human, do generally respond to society's expectations.  One common response being to present a public appearance of conforming to those societal expectations.  In private, it can be a different matter.  But, per yesterday's comment, scientists do tend to play in to this expectation in public and it doesn't, I think, work well in the larger society.  So public gets the wildly wrong idea in that case that scientists don't criticize each other, among other wildly wrong ideas.

06 June 2013

Scientist mutual criticism

I've been active on twitter lately (@rgrumbine).  The 140 character limit poses the problems to me that regular readers would expect.  140 words is pretty short for me.  Still, there are some good things out there (I'll be posting a raft of links from my twitter feeds Real Soon Now).  And sometimes a short comment is sufficient, but reminds me of things worth more than 140 characters.

One short comment, bizarre to me, was that scientists don't criticize each other's work.  On one narrow aspect, there's some truth to this.  That aspect being that, for example, pretty much all the people studying sea ice think that sea ice is something worth studying.  Within any given niche of science, occupants of the niche think it's important.  The thing is, each niche is very, very, small.  Occupants of every other niche are more than happy to tell the sea ice people that sea ice isn't nearly as important as their own niche.  At length and volume.  Of course the sea ice people argue back.  And so it goes.  Every multidisciplinary meeting I'm at, this is routine conversation.  Partly it's just a game.  Partly it can lead to something interesting -- say when the sea ice person (finally :-) persuades the ... let's say boundary layer theorist ... that there really is something interesting -- to a boundary layer theorist -- about sea ice.  It's for this latter prospect that I play the game (sometimes being the persuaded rather than persuader).

Yet, even within a relatively small niche like sea ice, there are sub-niches, and sub-sub-niches.  Each of these divisions, even while agreeing that sea ice is important and important to study, is in disagreement about the how, why, what about studying sea ice.  One has in any natural science a certain amount of division between observation/modeling/theory.  The observers think what's really needed is more and better observations, modellers think you need bigger and better models, theorists think we need better theories.  All are right, to some degree.  All are wrong, to some other degree.  But one thing this guarantees is that the sub-niches are ready to criticize each other.  And do so.

04 June 2013

Science as a method rather than conclusion

Some of us carry science with us throughout our life.  I'm one, and think we tend to have more fun in our lives.  That's the method aspect.  To my mind, the absolutely central aspect of science is "try to learn more about how the universe works".  All of us can do this, in almost any circumstance.  Some don't choose to do it, but even if you're not doing it at a professional level, you can do it.  Learning things about the world _you_ didn't know before is, still, science.

A side effect of this view is that I 'stray' from my alleged focus.  This includes field glaciology, planetary astronomy, observing atmospheric carbon dioxide levels, and, well, many topics that show up on my blogroll and points farther afield.

Really, though, my view is described best by one of my students.  I was teaching college physical geology (a story in its own right, but one I'll neglect here) and late in the class, after the field trip, one of my students mentioned that the class had changed how he looked at the world. 

The world is a fascinating place.  Look anywhere and amazing things are happening, or in progress, or about to happen.  To quote a different person, my niece; she went for _adventures_, not merely walks.  Just look at those ants.  What are they doing?!  Why this, and not that?!  In the case of physical geology, you can look at the river meanders that are in process of getting more (or less) extreme, the hillside that is in the process of slumping because the roadcut was too steep, and ... just amazingly many different things we can all see if we look.  The countryside is an _active_ place, always evolving to different conditions.

Related point is that my wife and I went traveling to Alaska with a pair of field biologists.  I know from nothing about biology, especially field biology.  But my wife and I had a lot of fun walking around Denali National Park with the field biologists.  She and I would see "a bunch of mossy-kind-of-stuff", being un-knowledgeable.  Our friends were seeing all kinds of amazing things.  "You don't get moss like _this_ back east!!", "Just _look_ at how thick that moss is!!".

We have tools for doing science, making more things observable, or testing ideas.  But the ground zero of being a scientist and doing science is that we realize that the universe is an incredibly interesting place.  The tools are aids, not requirements.  Figuring out the universe, the fascinating and stranger-than-we-_can_-suppose universe, is the requirement and excitement.

so say I :-)

18 July 2012

Career Day Educational Paths

Scientists spend a lot of time learning things, so it isn't unreasonable that the path to a career in science includes a lot of time in school. Along the way, though, remember that it is the learning things that is the important side, not so much the grades. For me this meant, for instance, taking optional classes that I was not necessarily going to get good grades in. But I learned a lot in them, more than if I'd taken the safer, easier classes. That has served me well.

College is the first part of the path. College expenses have soared since I was in school. But the method that worked for me is still available. Namely, we had very little money at home, to the point where no 4 year school was affordable. I had worked my junior and senior years of high school, not that it would have come near covering college costs, but it helped give me at least some spending money in college. The main thing was to select several schools and see who would come up with a good enough financial aid package for me to afford to attend. I wound up with the maximum in loans, the maximum in state and federal grants, the maximum in summer job earning requirement, maximum in work-study, and an aid plan that meant I'd graduate with zero dollars in savings. The rest, which was a lot, was scholarships from my school -- Northwestern University. That meant that I'd wound up at the most expensive school I'd applied to. The least expensive was my state school, which said that they'd give me much less than they thought I needed (and agreed with Northwestern about how much I and my family could come up with). Easy decision, even though they'd originally been my first choice.

Something that is more an option now than back then is to spend your first two years at a community college. Expenses are much lower, and the standard freshman chemistry/biology/physics/calculus are taught by people who are interested in teaching them, versus four year schools where it's often viewed as undesirable to teach such classes. I took Calculus III and Ordinary Differential Equations at my local community college and was very happy with the results.

As I was selecting colleges, I heard that the typical college student changes major 3-4 times. So in addition to the Electrical Engineering and Computer Science that I planned to major in, I also required that the school have a good Astronomy department and one or two other things. This helped narrow the field, and it ensured that if I decided I didn't like what I started with, I could change major to something else and still be in a good department. First I changed to just Electrical Engineering. Then to Applied Math. My area of application was originally supposed to be fluid dynamics, but that sequence was cancelled. So I jumped over to Astrophysics for my application area.

A couple of things I did in college worked out very well, and even better for my sons since they didn't have to take time to figure them out after they got to college. First, regardless of what area(s) you're interested in, join up and be active in the student groups for that interest. Different fields have different personalities, so you can get clues about whether you'd be happy in that field early on. The student groups also have more information on just what the field is like. Also join the more general groups, like Society of Women Engineers or National Society of Black Engineers (two excellent groups on my campus, probably our best-run).

Second, is to make some kind of connection -- maybe a job, maybe volunteering -- to work with someone in research. This is what I did for work-study the last two years of college. It gave me excellent practice at doing science as opposed to just taking classes about science. And it gave me a good working relationship with someone active in a field I was interested in (ice ages and climate change).

Thanks to my experience working with a professor while I was an undergraduate, I realized that my graduate school experience would depend strongly on whether my adviser was someone I could work happily with. You spend a lot of time with your adviser. If you're dreading each meeting, every day, it's going to be a very long and unpleasant time in school if you even get the degree. On the other hand, there are a lot of different people and types of people, even within the department. And many different departments in the country. Again, I was not as concerned about exact area of research I would do -- the universe is interesting. At one school, I'd have been doing theoretical climatology, at another I'd have been doing numerical models of tornadoes. At the school I went to, the University of Chicago, it was polar oceanography. While I was happy enough with the people I talked to at the other schools, my adviser and several other faculty were a step above in our conversations.

After graduate school, it's likely that you'll spend time in a postdoctoral position. Almost certain in biological sciences, likely in physical sciences. I earned an unrestricted ocean modeling fellowship -- meaning that I could do my ocean modeling at any school, with any adviser, that I chose. It's a great setup, though rare. More typically, you'll be reading help wanted pages of your professional society's web site. Anyhow, during this phase, be looking for your next job starting from day one. (I waited, which was not a good idea.) Most postdocs are only a year or two, so you'll need to be looking either for your next postdoc or a longer term position.

Every two or three years, there is a flurry of reports about the 'looming terrible shortage' of math/science/engineering people. Often, they include comments about how anybody who earns a degree (or, specifically, doctorate) in these areas will be flooded with offers. These articles have been common since I was an undergraduate, and I've seen sources saying so since the mid-1960s. There has never been a shortage in the sense of fewer applicants than jobs. The major report that came out when I was in school, which contributed to a surge in graduate students in math/science/engineering, turned out to have used fewer than 3 applicants for every 2 jobs as its definition of 'shortage'. My friends who were among the 1 in 3 who did not get jobs in science disagreed with that definition. Things are better now, but there is not, and never has been, a guarantee, or a shortage. So thinking about your job hunt much earlier than I did (not until after I defended my thesis) is a good idea, basically a requirement.

17 July 2012

Career Day Biographical Notes

I'll be talking with a career day crowd Friday, which reminded me that many of the questions the coordinator offered for the speakers to consider are also relevant to my purposes in the blog. For this note, I'll take up the more biographical side of things.

The only thing I can suggest is universal in scientist biographies is that we all think, and did so from an early age, that the universe is very interesting. Or at least some part of it is. I wasn't very excited about insects when I was young (they're more interesting to me these days, now that I'm ... less young). But a friend who is an entomologist, with particular interest in bees, has always been. It seems common, which saddens me, for kids to be taught not to ask questions, and not to find the universe so interesting, somewhere between, say, 10 and 18 years old. Scientists are ones who never lost that interest. The proverbial childlike sense of wonder about the universe is with us still.

Often that wonder and interest translates to doing a lot of learning. Sometimes we did it in school, and sometimes on our own. Not all of us were interested in school, or got particularly good grades in it when young. If not in school, then many did their learning by a lot of reading on our own (my path) or going out and observing the world (my biologist friend). But there are also scientists who weren't terribly interested in studying or practicing science prior to college; interested in the universe, but not so much or in a way that they'd start watching the bees in their back yard, or reading their way through the library.

My path also included a small telescope, messing around with electronics, taking apart clocks (they were mechanical in those days!), playing and watching baseball, running around, swimming, watching some good TV shows, and watching a lot of bad TV shows. And I read a lot -- some math, science, and history, and a lot of science fiction and mysteries. The telescope was the sort of 'Christmas' telescope that serious amateur astronomers intensely dislike -- poor mount and not very good optics. Worse, I sometimes used it watching through the window (you can hear their wails from here). But ... bad as it was, and my use of it ... it opened a new universe to me. I could see Jupiter's moons, that Saturn was blobby (not good enough to show me rings), and a huge increase in number of craters on the moon. I was practically Galileo!

Through the end of high school, at least, I haven't noticed much difference between the people who eventually became scientists and those became engineers. All the preceding applies to both. Indeed, in high school, I'd decided I was going to be an engineer -- Electrical Engineering and Computer Science (I was going to get both degrees). Conversely, the descriptions above apply to many people I know who never went in to science or engineering. My exchange student son, for instance, went in to business and now works in IT at the Deutscher Bank.

You don't have to be good at math to be good in science. Needs saying. I was, so I do kinds of science that use a lot of math. But not everyone is, and even those who are ok with math don't always like to do it. There are areas of science that don't use much math.

Which brings up the suggestion end of things: Try a lot of different things. Try math, biology, physics, chemistry, meteorology, oceanography, just plain walking through the woods, and watching city pigeons. Make mud pies, run, play sports, learn a musical instrument, learn languages. Do some reading, some observing. Fool around with ideas from my project folder. Make up your own projects and see what happens.

For the parents, do support and encourage your kids in trying things, but don't suspend your parental judgement. The idea of trying lots of different things, without worrying about whether you're good at them, is one my mother applied in raising my sisters and me. It was one of her most brilliant ideas, which I've stolen for my own parenting. But this didn't stop her from steering me away from inventing my own rocket fuel when I (a very clumsy 10 year old) was interested in trying that.

09 July 2012

Logical Fallacies and Scientific Method

Cracked had a very nice article on logical fallacies -- that we all make as a matter of course.  Also some good illustrations and suggestions.  Aside from the fact that it was a humor magazine that had such a nice article on rational thought, I was struck by the fact that each of the points mentioned are ones that the practice of science has addressed.

The 5 natural fallacies mentioned are:
5. We're Not Programmed to Seek "Truth," We're Programmed to "Win"
4. Our Brains Don't Understand Probability
3. We Think Everyone's Out to Get Us 
2. We're Hard-Wired to Have a Double Standard
1. Facts Don't Change Our Minds

Let's take a look at what science method does to combat these:

31 January 2012

Undergraduate Opportunities from NASA and NSF

Last Monday was opportunities for high school, and by chance, today, I'll move up to college.  From one of my email lists:

NASA offers paid undergraduate and graduate level internships in a wide variety of disciplines.  Over 200 internships are available.  The deadline is March 1st, but offers may begin going out as early as Feb. 2nd.  Visit http://intern.nasa.gov to apply for up to 15 opportunities with a single application.

NSF offers a wide variety of paid summer research experiences for undergraduates.  To search over 600 programs, please visit:  http://www.pathwaystoscience.org/undergrads.asp

For summer research specifically in ocean sciences:

For summer research specifically in engineering:

For mentoring and professional development support, please take a look at AGEP alliances:

07 October 2011

AMSR-E failure and fallout

Update 17 October: The meeting last Tuesday gives little hope.  There will definitely be no data for weeks.  I don't know what prevents a conclusion of never.
original:
AMSR-E has failed and is probably permanently out of commission.  For most of you, that's merely news.  Perhaps a source of amusement and interest is now gone.  For me, since I use(d) it in my day job, AMSR-E failing means some real work.  Most of that work was already planned, but now it needs to be done more speedily.

As I've often said here, and even more often in 3d, data are messy and ugly.  One sort of ugliness is that instruments do not last forever.  When (not if) they fail, you have to turn to a different instrument.  Ideally, you already have the replacement in hand and have been running it regularly and intercomparing its results with your current main system and ensured that there are no differences other than those you wanted -- like better resolution on the new instrument.  The present situation is not ideal, so, as we usually do in science, I'm making the best of it that I can.  And making notes for what to do when I have a chance to rework the immediate fixes.

28 July 2011

Best Frenemies

A friend refers to another scientist as his best enemy.  The important thing about this is, he is not angry or upset about the other scientist.  I'll call them John and Jane, John being the one I know.  John and Jane are both outspoken people.  Consequently, at meetings the two of them spend a fair amount of time disagreeing with each other.  And they disagree vigorously.

That vigor is part of what makes Jane a best enemy for John.  John's not a quiet person himself.  So it would be easy for him to vigorously say what he thinks is true and other people to quietly agree, because no other ideas were presented, or to quietly disagree.  Quiet disagreement would be worse.  It would mean that John would not have a chance to explain the parts of his thinking that would persuade those people that he was right after all.  With a vigorous enemy, however, John can be confident that Jane will bring up those points that aren't clear to other people.  And then John can explain them.  After this, if anyone disagrees with him, there's a fair chance that it's because he doesn't really have things right himself.  And he also has a chance to change his thinking, to arrive at something even better than what either he or Jane thought were the case when the two started their discussion.

The even larger bonus is that whatever conclusion John and Jane reach personally, they're confident that the entire audience knows what is the real topic of discussion, and why they each think as they do.  This puts enough substance on the table for the audience to be making good decisions.  If John's position isn't the one that some in the audience walk away with, that's fine.  He's going to keep thinking about the topic himself and maybe decide that something closer to Jane's original position is more correct.  Or maybe he realizes that there's a better way of describing why he thinks as he does.  Either way, some scientific progress is made.

Another part of what makes it work is that their discussions, regardless of how vigorous (an uninformed observer might say 'violent'), are technical.  Both of them have serious professional reasons for their conclusions.  And it is those professional reasons they turn to, not cherry picking starting points for time series trend analysis and other dishonest or ignorant methods.

A final matter that makes it work is that neither of them is personally upset by the fact that they have professional disagreement.  Both apparently rather relish it.  After spending 8 hours at the meeting disagreeing with each other about almost everything under the sun, they go out to dinner together and chat pleasantly about other topics.

Strictly speaking, I only have 'John's view of matters.  I don't know 'Jane'.  Still, they've been doing it for decades now, and I think even of 'John' were extremely clueless about other people (and my observation is that he is fairly clueful), he'd have picked up on 'Jane's differing viewpoint. 

Names and genders may well have been changed for the purpose of the story telling.  The people and descriptions are otherwise accurate.

16 July 2011

Happy Anniversary ...

 ... to me and my wife.  Part of the recent hiatus is due to me taking some time off to celebrate my 5th wedding anniversary with my wife.  I've marked this as a 'being a scientist' post since being a spouse is another thing that scientists do.  I enjoy that, and others of my roles -- being a son, father, uncle, brother.  Science is another, of course, and I enjoy that too, and is the point of the blog.  But a secondary point is that scientists are people.

We took the time, among other things, to think about what we have done in the 5 years so far -- good ideas we've carried out, storms we've weathered, and so forth.  And to think about what kinds of things we might like to try in the next 5.  There's a bit of science there -- experiments.  We try things, and some we like and keep doing, and some we don't, and quit.  Probably none of these experiments are publishable, but that's not the point.  We learn what we're trying to learn.  And have a lot of fun along the way!

01 April 2011

Says who?

I think citations are a greatly underappreciated part of scientific works.  They also, for some of the same reasons, provide a way of assessing the strength of a source even if you don't know the topic that's involved.

My first real introduction to citations as being important was when a history teacher of mine in college was concerned that I'd committed academic dishonesty -- failed to cite a source for something she felt was obscure.  After a nervous couple of minutes for me, we had a nice chat.  What I'd done was to mention, without citation, Newton's prism experiment.  I hadn't cited it because it was something I'd been seeing mentioned for years without citation, so figured counted as 'common knowledge' and not in need of a citation.  My history teacher, on the other hand, had never heard of it before, so was looking for the citation to the person who had discovered the experiment (perhaps a citation to Newton himself; I now have the right book -- Newton's Opticks).

So that's one use of citations -- avoid annoying your teacher.  Somewhat more generally, credit people for the work they do.  That's an important thing in being a scientist, as the people you're giving credit to are your colleagues.  Conversely, your colleagues will be peeved, to put it mildly, if you fail to credit them for their work.

The use at hand, as the title suggests, is to provide the backup for your claims.  You could avoid some of that by providing full descriptions yourself, but then your article becomes impossibly long.  Instead you can write something like "The earth is round[1] and rotates[2].", where you then give the full address to 1 and 2 somewhere later in the document (in print media days) or hyperlink the words directly.  An alternate that I prefer is to provide the direct 'who' and 'when', such as "The earth is round [c.f. e.g. Aristotle, ca. 322 BC*] and rotates [Foucault, 1851]."  In this way the reader immediately sees something about who your source is, and how old it is, and retains some merit even in a hyperlinking medium.

If you could read infinitely fast, it might be doable to simply read everything from everywhere.  But for us humans, some means of trimming the candidates to manageable volumes is needed.  So, for myself at least, if I'm trying to learn about a scientific topic, I head for scientific sources, or as close to the original as I can understand.

The bibliography/citation list is a quick way to figure this out.  Places that are citing wikipedia articles, newspaper editorials, and so forth, for most of what they have to say are not strong sources.  If the topic has scientific merit, there will be scientific papers on it.  If I couldn't read, or would have a hard time finding and reading, the original scientific papers (which is true in most fields), then I want to be learning from someone who could and did.  The strong source is one which is providing me the ability to go in to the literature and start learning about the particular part of the article which caught my attention.

This last is another important purpose of citation: It helps readers learn more.  I would rather be learning the science from an author who is trying to help me learn it.

Now for the mirror test: How do my own postings hold up to that standard?  In this post, it does ok, in the sense that this isn't about the content of science; it's my opinion of some things to consider in looking for sources from which to learn the science.  In the science posts, not always as well as I'd like.  So I'll take this post as a reminder to myself to include more references and links.

In my blogroll, two that are particularly good with their citations are Skeptical Science and RealClimate, though I think almost all are pretty good -- at least better than I.

*
c.f., I translate to myself as meaning 'See, for example'.  It means that there's more than one source, and this is either the one that I used (though I know there are more), or that for some reason I prefer it.
Update: my self-translation is incorrect, see Nick and Peter's comments.  What I really want is 'e.g.', for exempli gratia  (free example is my translation here, unfortunately, it's my son who is the latinist.)

ca means 'about' (circa).

18 March 2011

Internationality of Science

Comments here and at Serendipity by Kooiti Masuda remind me yet again of the internationality of science.  Not news to people in the field, but perhaps for younger readers.  And the small world that science is.

Here, Masuda observed: Precise description of the polar motion by Hisashi Kimura (who led observations at Mizusawa) was a moment of demonstration that the Japanese can substantially contribute to the international scientific enterprise.

Today, of course, it's no surprise.  But in 1899, when this was happening, Japan was new to the world science scene.  The US wasn't exactly an old hand itself.  While we'd had some individual excellent scientists before then (Ben Franklin, for instance), it wasn't until after the land grant universities (founded in 1850s and 1860s) had been at work for some decades that the US was noticeable in international science.  Japan had an even later start and more rapid run up.  Today, there are other countries going through the process of building their science infrastructures to the point of making significant contributions internationally.

Over at Serendipity, part of Masuda's comment is:


It reminded me another thought. There was a great development of computational geophysics in the latter half of the 20th century, including both climate modeling (Manabe, Arakawa, Kasahara), meteorological data assimilation (Sasaki, Miyakoda) and quantitative seismology (Aki, Kanamori), largely contributed by Japanese-American (born in Japan and emigrated to the USA) scientists. They made innovation by amalgamating the oriental tradition of precise numerical computation and the western tradition of rigorous logical mathematics. (I have not yet substantiated this interpretation, though.)

The very small world effect involved -- I have a connection with almost every person he names.  Manabe would probably even remember me :-) after our chats in the 1990s, where I'd tell him how bad the sea ice was in his model and he'd cheerfully agree and then tell me about how good his results were anyhow.  We were both right.  Miyakoda, I've never met, but he's the reason that I've had sushi.  My graduate advisor knew Miyakoda and apparently Miyakoda had a comment that nobody could be an oceanographer who hadn't had sushi.  So after I'd successfully defended my thesis, my advisor took me out to a sushi place, thereby finishing my qualifications.  Kanamori I wouldn't count except for some jr. high students.  Namely, I'd attended a presentation of Kanamori's when I was in graduate school.  Quiet a few years later, I went to talk to a jr. high science class.  It turned out they were studying earthquakes, and their textbook had a personal profile of Kanamori.  The kids were shocked/amazed/bewildered when I mentioned his sense of humor coming through in his presentation.  The notion of a scientist having a sense of humor was pretty strange to them.

Kooiti Masuda: Do you know of any English language histories of Japanese mathematics and science?  Your comment about the numerical computation tradition is interesting to me.


I also knew a Japanese-born and -educated scientist who was no great fan of mathematics -- Ted (Tetsuya) Fujita, who liked to be known as 'Mr. Tornado', and was down the hall from me at the University of Chicago.  He had phenomenal physical insight, and prided himself on using a minimum of mathematics.

23 February 2011

Science Fairs

Last week I had the pleasure of judging at the Eleanor Roosevelt High School science fair.  The   pleasure was only added to by the breakfast, snacks, and beverages provided by the ERHS PTSA.  Program organized by Jennifer Massagli

The main fun, as always, was talking to the students.  But I'll also make some comments here for students who are thinking about next year's science fair projects.  One part of the fun (for judges) being to talk to the students, I'll advise that students act like they're interested in their projects.  "Here is something I slapped together because the school made me." even if true, is just not the way to your judge's heart.  I also make this comment to graduate students and scientists about their presentations.  Many people don't act interested in their own work.  Trust me, if you aren't interested, we won't be either.

Fun parts of the talk include finding out what prompted the student to do their project and where they might take it in the future.  Also an important part of a professional presentation.  One student I spoke with was looking at the output of solar cells, how they depended on light sources and filters.  This is sufficient reason for the science fair project, and he explored that question ok.  But it became much more interesting to me when I discovered that he was using the solar cells as proxies for plant photosynthesis.  Plants do rely on the sun, as do solar cells, and there are degrees to which you can indeed use solar cells to map out plant responses.

A different line of interest for me is to see what the students think of to investigate, and how.  Many different sorts of things investigation, and many ingenious ideas on how to get the measurements.  Both are good areas to use and show your creativity, which is one of the areas on the official scoresheet.

21 February 2011

The Invention of Air

It isn't often that I wind up able to talk about a book, science, a scientist, and my genealogy in the same post, but Steven Johnson's The Invention of Air manages that feat.

The book is a pleasure to read.  Johnson's linchpin is Joseph Priestley's life and science.  I'd always thought of him as an English scientist, which turns out to be only partly true.  He finished his life in the USA, corresponding particularly with Thomas Jefferson both in revolutionary and post revolutionary days.  The Jefferson connection (and before that, Franklin) make for some interesting reading and historical insight outside of science as well as inside.

In his writing on Priestley's science, Johnson captures some of my themes about scientists being people, having lives, and those having some influence on what work they do and how they do it.   Also nice to see was that Johnson did not take the oversimple telling of 'good guy / bad guy' for Priestley's advancing the phlogiston theory and holding on to it longer than most.

To back up, as not everybody already knows, Joseph Priestley was one of the major chemists of the 1700s, most known perhaps for 'discovering' oxygen, but also (and Johnson makes a good case that this was the more significant) that plants release oxygen and consume carbon dioxide.  His approach to his research, though, was not the stereotypical one step leading to the next with some ultimate conclusion drawing ever closer.  It was more the 'try many things and see a) what happens or b) what works'.  And he then was active in describing how it is he did his experiments, as often the method itself was the important aspect of the work.

If you know a young scientist, I'll suggest you get this for them as well and not just yourself.

The genealogy I'll put below the fold.  For here, it suffices that I'm not a descendant of Priestley's.

23 December 2010

Kids are scientists

It's something of an article of faith in my family that children are natural scientists.  Yet another illustration is from a classroom of 8 year olds, who recently published in a professional scientific journal.  Yay!

In their case, it was a study of bees and how they identified food.  The full paper is here. A nice journalistic coverage is here.

They did have a professional scientist helping figure out things, and doing the writing, etc..  But the fundamental ideas came from the kids.