You'll Learn the Interesting Stuff Later

Bait and Switch, and observation from Entropy Bound. Peter’s argument is in the context of “the lab” being more mysterious when you don’t know what’s going on (the bait) but by the time you get to work in one you’re doing actual science which is (one hopes) quite interesting, even if the apparati have lost their mystique.

But when you get down to it, it’s a bait-and-switch: when you are growing up, no-one ever tells you that things aren’t so colorful and mysterious, so by the time you finally realize that it’s not, you’ve found a much more interesting — albeit prosaic –real world to ponder.

I can certainly identify with this, and also see a related effect along another tangent: are we using the right bait? You take physics classes (and this probably holds true for other disciplines, though I have little empirical data for comparison) and there is this sometimes spoken, sometimes unspoken promise of “I know this is basic stuff and may seem boring, but I promise if you learn this, we’ll get to some interesting stuff later on.” Whether that holds true or not depends on what you’re doing, who’s teaching and what your threshold of “interesting” is. I now wonder if this is part of the hurdle to get more students interested in physics — do we bore them to death learning basic kinematics, thermodynamics and E&M? Does this drive some students away who might otherwise be interested if they were doing physics discovered after 1900? At least in biology there is the prospect of dissecting something even in introductory courses (which is why I shied away from biology. Dissection, moi? Not only no, but fuck no). In chemistry you play with chemicals. In physics we’re sliding blocks down an incline. (My undergraduate experience did have one bonus, though. Since we were a small school and could only support one sequence per year in general physics, it was designated a sophomore-level course, so that everyone taking it could have calculus as a pre- or co-requisite. In order to make sure they physics majors had something to do, we had a course in basic optics and relativity and another in electronics that were engaging, but then anyone following the normal sequence regressed to the yawn-fest)

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Oh, Really?

From one of those “tell us what you do” info dropdown menus, so I can get more targeted spam.

good2know1.png

Good to know that Research/Development/Scientific isn’t technology-related. Do you think maybe, just maybe, they sold computer stuff?

Silly Blog Games, Part I: Robo-Tag

In my brief time in the blog-o-truncated-icosahedron (I’m not convinced it’s a sphere), I’ve gotten to know and be indifferent to the automatic pingback. The strange and wonderful spiders/bots that crawl the web and look for keywords, and link to your blog post. Much of the time, it happens because of some innocuous term you’ve included — just yesterday, I wrote about some non-hoops player being officially included in the NBA draft, and made mention of the NFL, and got a pingback from somebody’s NFL-themed blog. I mentioned taxes the weekend before April 15th, and got three tax-related pingbacks. They obviously were not from people who had read the post.

So I got to thinking, (always a dangerous thing)
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Googling: What the?

google-planck.png

Come to think of it, I meant option C: “Planck’s constant”

(the actual issue was that this was a copy-and-paste of a longer expression, and there is an almost indistinguishable fraction of an extra space after the apostrophe)

Life Imitates Art

Well, Art is busy, so life imitates a cartoon instead.

The other night on the Colbert Report, he interviewed George Johnson, author of The Ten Most Beautiful Experiments (which I’ve mentioned before), and the idea for which was stolen from Chad. The interview was standard Colbert schtick, and Johnson doesn’t really explain what’s going on with the physics, but the last 30-45 seconds is great, and becomes the XKCD cartoon “The Difference,” about science and pain.

UPDATE: if you are getting frustrated with the Comedy Central player, there’s an embedded link here that seem worked better for me. (I can’t embed the video myself, alas)

What Goes Around, Comes Around

Make Ethanol in Your Own Backyard

A Silicon Valley start-up called E-Fuel is showing exactly how ethanol can live up to its name as “the people´s fuel.” The company recently announced that it will soon start selling a home ethanol system, the E-Fuel 100 MicoFueler, which will allow anyone to make ethanol from sugar, water, yeast, and electricity in their own backyard.

Still, they didn’t claim this was a new idea.

“What, you can run a car on that, too?”

(Reminds me of the story about someone who sold bricks of dehydrated grapes during prohibition, which included step-by-step of instructions of what not to do, lest you end up making some illegal alcohol)

Is There a Draft In Here?

YES

Zach Feinstein declares for the NBA draft. It’s free. The deadline for “early entry” declarations is 60 days prior to the draft (which is June 26), so if anyone desires to go this route, it’s too late for this year. (One has to wonder if it will remain free once this gets into the wind. OTOH, how can they charge more than a few bucks? College players don’t have jobs.)

The short story is that I, Zachary Feinstein, have declared for the 2008 NBA Draft. As a 5’8″ 130 pound Caucasian, I am the perfect candidate for professional basketball. Also, I do not play basketball.

You see, I am not currently on my college’s basketball team (Division 3 just for reference) nor did I try out to be. I was at no point on my high school’s basketball team nor did I try out to be. I was at no point on my middle school’s basketball team nor did I try out to be. The last time I was on a basketball team was before Bill Clinton got caught with his pants down.

So there you have it, I, Zach Feinstein, am in the 2008 NBA Draft.

Make sure to check out the scouting report, too.

Now, I wonder: what about the NFL?

Oh, Now They Tell Me

A while back I bought a radio-controlled helicopter to fly around the apartment — it isn’t something designed to withstand much more than the gentlest of breezes — and broke it in almost record time. A harsh learning curve. I strayed into enemy airspace smashed into the lights above the dining-area table and snapped one of the rotor spokes. Oh, well. I suppose it’s fixable, but I haven’t gotten around to it yet. Add it to the list.

Now arXiv tells me why tiny helicopters are so hard to fly

[M]oments of inertia drop in proportion to the fifth power of vehicle size. This gives small helicopters quicker response times, making them more agile. But the real killer is that the main rotor tip speed in a small helicopter is the about the same as it is for a large helicopter. So the ratio of the rotor moments to the moments of inertia can become huge and unmanageable.

So it’s all because of scaling. Curse you, scaling laws! A disproportionately large curse!

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Pop Music

Joan Jett’s “Do You Wanna Touch Me” came up on the exercise playlist this afternoon, and it reminded me of this quote about music:

“All pop music is about sex. Rock is about wanting to do it, jazz is about doing it, and country and western is about feeling guilty after you’ve done it.” – Robert Waldo Brunelle, Jr.

(which also reminds me that playing country music backwards is uplifting, because they guy gets his house back, his pickup back, his girlfriend back, his dog back, his job back and stops his excessive drinking.)