Nada y Nada y Nada

Today’s image comes to us from a University of Delaware press release about spintronics; you can also take a look at an associated animation that shows something similarly incomprehensible.

So, first off, you should know that “spintronics” refers to a flavor of electronics that relies on an electron’s spin (as well as its charge) to communicate information. It holds great promise for computation, blah blah blah, and indeed, the advances reported in the aforementioned press release sound significant. But the image…

For those who have studied quantum mechanics, the idea of spin being represented by an arrow will be familiar, but certainly the word “spin” does not connote such a mental image, and incorporating the 3-D arrow icon into the visuals (sans explanation) isn’t exactly a compelling starting point. Then, what exactly is going on, with an electron apparently splitting in two before one (half?) tumbles down a silicon ramp toward… What exactly? The whole sequence of images really, truly communicates nothing. Nada. Nada y nada y nada. Makes me feel like a nihilist.

Also, is it trying to look patriotic, with red electrons, blue silicon, and white “Al,” “CoFe,” and “NiFe” (which, taken together, look more like misspellings than chemical formulae)? The research group did get funding from the U.S. Office of Naval Research. Which also makes me feel like a nihilist.

It’s kewl that a researcher can learn to use freeware to create graphics, but that doesn’t mean the fruits of his efforts are ready for public consumption.

Have a great weekend! I myself am off to New York for a few days.

Motionless Conveyor Belt

Today’s image comes from a press release telling us that “Optoelectronic Tweezers Push Nanowires Around” (whether we like it or not, I suppose).

I’m minutes away from attending a symposium here in Edmonton, Alberta, so this will have to be brief. But I was struck, the moment I saw the above image, that I felt as though I knew what was going on. It’s analogous to a board game in which pieces are moved along a path; the thing is, it’s probably even more analogous to the cartoons used to describe a charge-coupled device (CCD), with which I’m all too familiar.

So my question is how familiar this iconography would be to somebody unfamiliar with computers and CCDs and such. Does it immediately call to mind games of parcheesi and thus convey its message clearly and concisely? Or does it in fact communicate little or nothing? The caption explains that it’s an “image of an ‘optical conveyer belt’ in which particles can be trapped while moving under the influence of electric fields,” which is probably exactly the right amount of information to convey the essence of what’s happening (in spite of misspelling “conveyor”). But what kind of mental image is the reader left with?

I guess I feel as though I’m coming at the image with a lot of (possibly erroneous) information—about electronics, about how CCDs operate, which makes me read a certain amount into the image as it’s presented. I’m curious what someone without my background (or biases) sees in it.

Anyone care to offer their $0.02?