02/17/2004

Today’s Poser Question is this:

Why are tanker cars on trains, and tanker trucks, cylindrical? This shape is certainly less space-efficient than a box… why not use a boxcar-like shape instead, which would hold more liquid?

02/13/2004

Every now and then my e-mail goes nuts. See the screenshot below, showing my mail program downloading messages at a furious pace. It’s not spam– at least, most of it isn’t spam– because it’s from a client sending out thousands of messages to people. Lucky me, as the server administrator I get all the bounce messages.

Thank goodness for mail filters. I never see any of these messages; they get dumped into a folder somewhere…

02/13/2004

Sometimes it seems like being a researcher could be a lot of fun.

Take today’s announcement from a group of scientists at Princeton: they recently completed experiments that show the “packing density” of M&M candy is higher than that of similarly-sized spheres (in this case, small ball bearings).

Imagine, first, the guy who thought up this experiment. You can almost picture a group of white-coated guys lounging around the lab, just having finished their latest foray into nuclear physics or something, tossing down some M&M’s and Pepsi. One of them– probably the one drinking Bud instead of Pepsi– suddenly laughs and says, “You know, I wonder how many M&M’s would fit into this keg.”

From there the experiment is born, and they spend weeks filling containers with M&M’s and ball bearings, counting them, eating them (the M&M’s, not the ball bearings), and scratching everything down on graph paper. They know they’ll never get published if they describe such an experiment, so they decide to– get this– create a computer simulation of a keg filled with M&M’s.

Then, after they’ve finished all the experiments and computer runs, they need to somehow justify this whole project. So they come up with a justification; in the words of one article, “The scientists say their work is important to anyone involved in the study of particle packing.”

Thank goodness those particle-packing people will have this landmark new research!

Pass the M&M’s.

02/06/2004

Yesterday I downloaded and installed a new game for Linux– I’m always on the lookout because Alex and Kyra have a Linux computer and they like new games. It’s called Armagetron, which basically means it’s the light-cycle game from the movie “Tron”. But rather than the typical lots-of-colored-lines version, this is a fully three-dimensional game, where the viewpoint follows the light-cycles and can be adjusted through three dimensions. The sound is sweet, because it uses volume changes and even Doppler shifting to simulate the light-cycles whizzing past each other.

Although it will only run on my computer (theirs doesn’t have a 3D accelerated graphics card), they were thrilled to sit and watch me play for a good half hour. Then Laralee got in on the action, and she and I played a team game where it was us against the AI… with split-screen display. Sweet.

Who says free can’t be good?

02/04/2004

Talk about great neighbors! There are several people on our block (well, okay, technically it’s a “circle”) who are really interesting and fun. And today one of them sent Laralee a fabulous bouquet of flowers.

One would expect me to do that perhaps, but a neighbor? Now I’ve got to think of something… especially considering that Valentine’s Day fast approaches…

02/04/2004

Alex just got home from school and had these cool marshmallow-and-toothpick “sculptures” to show me. One is a house (fairly obvious) and the other is a mousetrap (not so obvious). Apparently the mouse– which he explained he didn’t have time to build– sees the marshmallows and goes into the little box and gets pounded with unimaginable marshmallow-and-toothpick force.

One wonders what a marshmallow-and-toothpick mouse might look like…