Free Poster: 7 Myths about High School Physics

Well, they're really only free if you print your own, but you can do that by downloading the PDF from posters section on the APS web site.

Physics Central Web Site

I guess this falls into the "how far behind are you in your reading" category. The December issue of APS News reported that Physics Central was a finalist in the web awards from the Institue of Physics after a redesign late last year.  PhysicsBuzz was listed as a finalist in the "Best Blog" category. I would write more, but I'm busy browsing the site right now....

Water Pressure Experiment

Usually I'm blogging about astronomy, but the March issue of Science and Children had an article "Water Pressure in Depth" that covers an experiment that is part of the Webelos scientist activity pin, and something I have done with Webelos. They turn the simple demonstration activity into an inquiry activity. They also use plastic milk cartons which are easier to come by than the coffee cans I used (doh! why didn't I think of that then).

Easy Moon Phase Model

I just saw this one in the March issue of Science and Children, and it's something I definitely have to incorporate into the moon phase activities I do with the kids. The original comes from the Top Science web site, and while I've enjoyed their short ads in the magazine, I never looked at their web site. Definitely a good resource. (I'm resisting the urge to whip out the credit card and buy a bunch of stuff...for now anyway).

Supermoon? Well, sort of....

I've had several people ask me whether I went out to look at the full moon on March 19. Uhm, no, I didn't. Why not? After all, it made the local (radio) news as "supermoon" since it was going to be closest it has been in nearly 20 years.

Perihelion Day!

Today is the day when Earth makes its closest approach to the Sun, around 2pm EST (New York time). If you live in the northern hemisphere, you might find it surprising that the Earth is closer to the Sun during winter than during summer, but it is. The difference in distance is "small," astronomically speaking, a bit under 5 million kilometers. Our most distant point from the Sun will happen on July 4th.

See also:

This Month in Physics History: Louie de Broglie

Every month I get the APS News (the dead-tree version, which I can carry on the subway), and the two parts I always read first are the Members in the Media (link is to Oct 2010 issue) and This Month in Physics History. Both of these sections help in putting a personal face on physics, and the history column helps set physics discoveries in the context of their historical setting which reads very differently from the typical text book description. This month is about Louis de Broglie.

ZIP Recovery Tools - Not *Exactly* an Endorsement

I was going to make this just a comment on my previous blog entry, but after spending a couple of hours trying various tools and making notes, the "comment" was getting longer than the original post. So it gets it's own entry.

I've kept poking at various tools to try to recover some of my data. It looks like most of it is recoverable, at least with the right tool. The going price for zip repair tools appears to be about $30. I haven't forked over the money yet, as I'm still going over my options. If they were under $20, I'd probably have already bought one, and if they were $10-15 I might have bought a couple to try different things. But my cheapness has paid off in that there is one free solution I've found that appears to work well.

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