Of Particular Significance

Tag: waves

To the five articles in my very-slightly-mathy series on Fields and Particles [sorry, the non-mathy series will be probably appear a couple of months from now] I have now added a 6th:

  1. Ball on a Spring (Classical)
  2. Ball on a Spring (Quantum)
  3. Waves (Classical Form)
  4. Waves (Classical Equation of Motion)
  5. Waves (Quantum)
  6. Fields (new!)
  7. Particles (coming next week)

Meanwhile, I remind you that I’m giving a talk on-line, about The Quest for the Higgs Particle. No math required there. (Saturday, September 8th, 1 p.m. New York time/10 a.m. Pacific, through the MICA Popular Talks series, held online at the Large Auditorium on StellaNova, Second Life.  You’ll need a Second Life viewer to watch it live.  Should you miss it, both the audio and the slides will be posted later for you to look at.)  And also, if you missed my colleague Sean Carroll being interviewed about his new book and the science behind the Higgs Discovery, an opportunity I recommended to you yesterday, all is not lost; you can hear it here.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON September 7, 2012

If you’ve just gotten back from vacation, perhaps after days or weeks seeking the perfect wave, well, what a treat awaits! So much reading to do, about such interesting things. I’m writing a set of articles, intended for the reader who has once-upon-a-time seen beginning physics (what we in the U.S. would call “freshman physics”, or even a good “advanced placement physics” course pre-university) with the goal of explaining what fields and particles are. Five of the seven or eight articles are done; four appeared over the last two weeks, and now there’s a new one:

  1. Ball on a Spring (Classical)
  2. Ball on a Spring (Quantum)
  3. Waves (Classical Form)
  4. Waves (Classical Equation of Motion)
  5. Waves (Quantum) — the new one.

After this: an article on Fields, and then one on Particles, and maybe one more with some follow-up information.  And then, with this set complete, I’ll move on to another series of articles, about how the Higgs field works…

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON September 4, 2012

On Monday I started a series of articles to explain particles and fields, aimed at those who’ve had a little bit of physics in their past (perhaps a semester or two just before or just at the beginning level at a university), and containing a very little amount of math.

I first brought you the story of the ball on a spring, both the classical [i.e. pre-quantum] version from the 1700s and the quantum version from the early 1900s.

Now it’s time to turn to waves. This is the longest subject I’ll have to cover, I think, so I split even the pre-quantum story of waves up into two parts, one aimed at getting the right formula for describing a wave, and the other at getting the right equation of motion for which that formula is a solution. If you’ve had first-year physics you’ve seen most of this, but there’s a twist toward the very end that is probably novel — you’ll see a wave equation you’ll probably recognize, but also one that, quite possibly, you haven’t seen before.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON August 30, 2012

One of my current goals is to explain how the Higgs field works to anyone who’s learned a bit of physics at the beginning-university or advanced pre-university level. As a step toward the goal, I am creating a set of pages that explain how fields work, why quantum mechanics implies that sufficiently simple fields have particles, and which aspect of a field’s behavior determines the masses of its particles.  You will find that knowing a little physics and a little math is helpful.

[I’m afraid that most of you who never had a beginning physics class at all will have to be patient. It’s an even greater challenge for me to explain the Higgs field to someone who’s allergic to math, or hasn’t had much math yet; I’m hoping my current efforts will help me see how surmount that challenge.  But meanwhile you might like to read my Higgs FAQ and my popular article on Why the Higgs Particle Matters.]

The first step is to remember how a ball on a spring works — one of the first things one learns in any physics class — and then learn a little bit about how quantum mechanics changes the answer — one of the first things one learns in a quantum mechanics class.  This is where the concept of a “quantum” first makes its appearance in physics.  Those articles are now ready for you to look at.  The next step [waves, both without and with quantum mechanics] will follow over the coming week.

Note: I’ve included, for the first time on this website, some animated gifs among the figures.  These should animate when you click on them.  I know they need improvement; over the next day I’ll be trying to make them faster to load and run.  Please be patient and let them load; but do let me know if you can’t make them work at all, and if so, what browser and hardware you’re using.  Update: they should be much faster now.

Picture of POSTED BY Matt Strassler

POSTED BY Matt Strassler

ON August 27, 2012

Search

Buy The Book

Reading My Book?

Got a question? Ask it here.

Media Inquiries

For media inquiries, click here.