Author Archive

High school answering machines

Tuesday, June 20th, 2006

I spent the afternoon yesterday at a meeting that included several teachers from our local high schools. It seems we’re trying to align the curriculum at the high school to better prepare students for entering our two-year programs. I didn’t hear this at the meeting, but talking to these teachers made me a bit more receptive to something a friend forwarded me today:

School Answering Machine
Hello…You have reached […] High School.

  • To lie about why your child is absent, press 1
  • To make excuses for why your child did not do his work, press 2
  • To complain about what we do, press 3
  • To swear at staff members, press 4
  • To ask why you didn’t get info that was already enclosed in your newsletter and several flyers mailed to you, press 5
  • If you want us to raise your child, press 6
  • If you want to reach out and touch, slap, or hit someone, press 7
  • To request another teacher, for the third time this year, press 8
  • To complain about bus transportation, press 9
  • To complain about school lunches, press 0

If you realize that this is the real world and your child must be accountable and responsible for his/her own behavior, classwork, homework, and it’s not the teacher’s fault for your child’s lack of effort, hang up and have a nice day.

Santee sunset

Sunday, June 18th, 2006

Enjoy s scene from South Carolina.

[Santee sunset]
Santee sunset: Click to enlarge.

Don’t forget to use your razor daily

Friday, June 16th, 2006

I just bought a new Norelco razor. So far, i’m satisfied with my purchase. It was relatively inexpensive, and it seems to work well.

But after reading the manual, one thing bothers me a little.

[Razor instructions]

So, if I neglect to use the razor for a month, I have to plug it in and let it recharge for a whole year??? That’s harsh!

Cat Heaven

Friday, June 16th, 2006

Humans have been known to argue about what sort of place Heaven might be, or if it exists at all. For cats, Heaven is simply a warm blanket in a chair next to the window. Ash illustrates:

[Cat Heaven]
Cat Heaven: Click to enlarge.

Here’s an even larger (1024×768) version of the above picture.

What I wish they had said, and what they actually said

Thursday, June 15th, 2006

We’re going to have an election soon to choose the new education superintendent. This is potentially important for the future of education here in the Palmetto State, and as all three readers of this blog know – science education is one of my big issues.

The main thing I look at to see whether someone supports quality education is the evolution issue. It’s not because I’m a biologist (my wife teaches biology, while I teach chemistry). It’s because evolution is such an established part of one core science that it allows you to see what a person things of science in general. A person that rejects evolution without looking at the science will reject any other areas that the don’t like – and that leaves science education stranded on some extremely thin ice.

Here’s what I’d really like our two education superintendent candidates to say when asked about whether evolution should be taught in schools:

“Well, I’ve looked at the issue, and I think the theories taught in the high schools should be the theories that help our scientists gain new knowledge in their fields. Biologists use evolutionary theory to give us new insight on how living things work. It’s a fundamental and well-supported idea in biology, much like the concept of the atom is a fundamental and well-supported idea in chemistry. We’d be doing out children a disservice to avoid evolutionary theory in the classroom.”

Here’s what they actually say:

Karen Floyd, Republican, who won a close primary election

There are a growing number of prominent scientists who are “poking around” in the foundations of evolutionary theory. Irreducible complexity is just one issue that causes heartburn for the evolutionists.

As science evolves, so do the opinions of the scientists. More and more scientists are publicly coming out in favor of an Intelligent Design Theory because that is what the evidence is telling them is true.

Long gone are the days when God was excluded from scientific circles. If we ignore that reality, we will only limit our children’s scientific knowledge.

Clearly, the theory of the politically-correct minority has been allowed to dominate our classrooms to the point where not only is evolution being taught as a scientific truth, but the public address system cannot be used to say a prayer for the safety of athletes before a football game – this is wrong.

Source: SC PIE – State Superintendent of Education candidate supports Intelligent Design

Jim Rex, Democrat

South Carolina is a very spiritually active, involved state. … I believe there are other venues for supporting and nourishing religious beliefs outside and inside our schools. There are more appropriate places to deal with that (subject of alternative theories) than in the biology classroom

Source: The State: Veteran educator kicks off campaign

Which one are you more comfortable with setting the science agenda for your kids?

(Hat Tip: SC-SCIED)

North Carolina BBQ: Holt Lake (part 2)

Sunday, June 11th, 2006

[Holt Lake]

The last time I visited Holt Lake Seafood and BBQ, I got the seafood. This time, however, I decided to bite the bullet and get a BBQ plate. There’s no buffet line (so no seconds), but I’d had a big lunch already.

I got the small BBQ plate ($5.25, with an extra $1.15 for tea) and two sides: baked potato and potato salad. (This makes me a potato addict, or so Patty says. What can I say, though? The potato salad here is really good.)

[BBQ plate]
The small BBQ plate at Holt Lake

As you can see, the small plate has a decent amount of meat on it. I’m not sure how much larger the “large” plate is.

BBQ at Holt Lake is (of course) pork, but this BBQ is cooked in a vinegar and pepper sauce. If you’re used to the smoked BBQ you find in many parts of South Carolina, this will be a bit of a culture shock. It’s the same style of BBQ you would find in the Pee Dee region of South Carolina.

I’m not a big vinegar fan, and I find some vinegar-cooked BBQ to be almost inedible. Holt Lake’s BBQ is slightly spicy, but the vinegar isn’t overbearing. (At some places in the Pee Dee, I’ve been tempted to bring pH paper to test the acidity of the BBQ!) If you are a vinegar fan, though, don’t worry. You can pour on more spicy vinegar sauce at the table, and Holt Lake offers their sauce for sale for $2.50 a bottle.

One other thing I should mention is the Brunswick stew.

[Brunswick stew]
The Brunswick stew at Holt Lake

There is a controversy over the origins of Brunswick stew – which I’m not going to get into in this post. Several states claim to be the first to make it. If you’re looking for something to substitute for hash and rice, though, this Brunswick stew is what you should get. While it doesn’t look exactly like the hash you’d get from a typical South Carolina BBQ place, it tastes almost the same.

So pig out!

Drunk AND deaf!

Friday, June 9th, 2006

For those of you who are used to having your students stagger in with a hangover after a weekend beer binge, here’s some good news!

Nearly three quarters, or 73 percent, of 1,200 students surveyed said iPods were “in” — more than any other item in a list that also included text messaging, bar hopping and downloading music.

They’ll still stagger in drunk, but they’ll also have the earphones of their iPod stuffed into their ears!

But hey – maybe they’ll at least be listening to someone’s class

Cat hangover

Friday, June 9th, 2006

Now I know why the cats sleep all morning long. They party all night!

[Drunken Ash]
Ash: How much did I have to drink last night???

Chemistry you can do at home: Coke fountains

Wednesday, June 7th, 2006

Cola drinks, as almost everyone knows, contain dissolved gas. The gas is present in two forms in the drink: dissolved CO2 molecules, and carbonic acid (H2CO3) – which forms in a reversible reaction between the carbon dioxide and water.

Dissolved CO2 is partially responsible for the flavor of colas, and is completely responsible for the fizz. The fizz is what we’re interested in for this blog post. Like all gases, carbon dioxide takes up a lot of space relative to its mass. When dissolved in liquid, it takes up less space than it would in the gas form. What if all the dissolved carbon dioxide in a bottle of cola were to come out of the liquid at once? The gaseous carbon dioxide would push against the liquid and the sides of the bottle. if there was a path for the liquid and gas to escape, they would shoot out rather rapidly.

You can get some dissolved carbon dioxide to come out of a cola by shaking it (who hasn’t seen this at least once?). This is good for practical jokes, but doesn’t make for an impressive fountain. For that, we need something better: Mentos mints.

While I’m not sure of the mechanism (I have a few ideas), Mentos mints catalyze the release of carbon dioxide from colas. Catalysts speed up a process, and Mentos mints make the carbon dioxide come out of cola fast. Really fast. Fast enough to blow three quarters of the liquid out of a two liter cola bottle.

We tried putting some Mentos into a two liter bottle of Diet Coke in my introductory chemistry class – it’s a good demonstration of the effects of gas pressure. Here are the results.

Click each image to enlarge.


Loading the Mentos. I had the students use the folder as a chute to get the Mentos into the bottle because that way it would be less likely for the students to put their head directly over the bottle. (See? I’m not completely evil!)


You can see the cola already starting to shoot out of the bottle. My students haven’t yet noticed, since this is only a few seconds after the first few Mentos make it into the bottle.


Have they noticed yet?


Thar she blows!


Behold! The mighty Coke fountain!

We estimate that cola shot up about four feet over the top of the bottle. This is similar to other results from around the web.


Is that the face of Jesus in the cola? Or is it something more sinister? (This experiment was performed on 06/06/06, after all!


Who’s going to clean this up, anyway?

I think I’ll try this again with my other classes. It’s cheap, safe, entertaining, and requires no special hardware. Just don’t do it inside!

Snake Under Glass

Friday, June 2nd, 2006

In lieu of our weekly picture of one or more of our cats, we present … Snake Under Glass.

[Snake Under Glass]
Snake Under Glass – Click to enlarge the image

Why is this posted in the cats category? Here’s the story:

Patty came in from the house one day to find all three cats circled excitedly around our kitchen table. They had trapped the little fellow you see in the above picture under the table. Patty trapped him under a Coke glass, and I released him into the bushes. No snakes or cats were harmed in the making of this picture.

I am still not sure how the little guy goy into the house, but we haven’t seen another one.

(Note: The “little guy” might be a “little gal” … but I don’t know how to tell them apart.)