Wednesday, March 11, 2009

History of Anatomy


Scientific American has a short slideshow showing examples of illustrations from early anatomy texts. If you've taken my class, you'll understand why I think this is cool. If you haven't taken my classes, then you'll probably just think I'm sick or something.

Reader Response

Let's try playing a game. This is a picture taken of my son a couple of weeks ago during a visit to Grandma's farm:

Let's see who can come up with the best caption for it. Leave your suggestions as a comment by clicking on "comments" below.

My idea:
"When famine struck the North Pole, all the little elves were forced to take drastic measures..."

Sunday at the Earliest


The word from NASA:
Space shuttle Discovery’s launch to the International Space Station now is targeted for no earlier than March 15. NASA managers postponed Wednesday’s planned liftoff due to a leak associated with the gaseous hydrogen venting system outside the external fuel tank. The system is used to carry excess hydrogen safely away from the launch pad.

Liftoff on March 15 would be at 7:43 p.m. EDT. The exact launch date is dependent on the work necessary to repair the problem. Managers will meet Thursday at 4 p.m. to further assess the troubleshooting plan.


Shuttle Launch Director Mike Leinbach said Wednesday that workers will take their first up-close look Thursday afternoon at the gaseous hydrogen vent line that began leaking during the countdown to Wednesday night’s launch attempt. The leak prompted a postponement of the STS-119 launch to the International Space Station.

The inspection could set a course for repair options that would allow another launch attempt as soon as Sunday.

Leinbach said the leak developed on the piping that runs from the fixed service structure, or launch tower, to a valve at the intertank section of the shuttle’s external tank. The pipe moves hydrogen gas away from the shuttle and to a flare stack near the launch pad that burns it away safely. He said there was never any danger to the shuttle while it was being fueled, but that the leak allowed too much gaseous hydrogen to escape the vent line.

I guess that big bird will be sitting for a few days at least.

"No go" for Discovery


Tonight's scheduled launch of the Space Shuttle Discovery was postponed earlier this afternoon when crews discovered a hydrogen fuel leak that had the potential to be "catastrophic". The launch was tentatively rescheduled for just before 9:00 p.m. (eastern time) tomorrow (Thursday).

A press conference should be held at any time now to discuss the status of Discovery's launch. You can follow the updates on NASA's website.

Daily Recap: Wednesday, 3/11

Early release day...
Each class had a work day to get ready for the end of the semester. I'm going to be gone tomorrow for the basketball game, so students will really need to take responsibility for getting everything turned in.

Investigating Technologies:
Tomorrow will be the last day in the current harbors and suites. Make sure that your projects get finished and that your portfolios get put together. Also make sure that you clean up your work area before you leave.

Anatomy and Physiology:
Portfolio assembly.

Biology:
Review and preparation for tomorrow's evolution exam.

T-minus 12 hours

The countdown is proceeding for this evening's launch of the space shuttle Discovery. The actual launch time has been adjusted four seconds to 9:20:14 Eastern time, which will put it after dark. Nighttime shuttle launches are beautiful...

NASA personnel will meet later this morning to give a final "go" or "no go" to begin filling the big orange external tank.

Tuesday, March 10, 2009

Way to go Joe!

Look who wrote the cover story for next week's edition of Sports Illustrated:

He'll tell you all about it on his blog. (Of course, you won't be able to get to it from a school computer...)

Ecology...?


From Scientific American's 60-Second Science blog:

So there's a female blue duck (Hymenolanimus malacorhynchos) named Cherry who is suspected to be the last female of her species in England. In order to save the species from extinction there, biologists introduced a pair of males to her (named, cleverly, "Ben" and "Jerry"), hoping that one of them would mate with her and allow the propagation of the species:
The boy birds, Ben and Jerry, were introduced to Cherry, but to no avail. "Cherry showed some interest in him," [Paul Stevens, the warden at Arundel Wetland Center] told the newspaper, referring to Jerry. "She displayed typical mating behavior — she approached him and called to him, she even looked like she was nesting. We thought it was great and it was all going to happen, but nothing ever did."

Feathers flew, however, when Ben and Jerry were shacked up together. "To our surprise, the two males really took to each other and it was obvious that they really liked each other," Stevens said, adding: "Ben and Jerry do make a lovely couple."

iPod Shuffle

I haven't done this for a few days. The video on this one is kind of silly, but it's just a great song:

"Some of it's magic, and some of its tragic, but I had a good life all the way."

Daily Recap, Tuesday, 3/10

Lots of testing today!

Investigating Technologies:
Two more days to finish this rotation!

Anatomy and Physiology:
Respiratory system exam

Biology:

Evolution summative assessment

Get Over It

I'd like to thank the "nice gentleman" who found it necessary to honk at me as he almost drove into my passenger side door this morning on my way to work. I'm sure it made him feel like a real man to set up there in his lofty SUV perch and make his point with honks and gestures. Classy...really classy.

Monday, March 9, 2009

Daily Recap: Monday, 3/9

Investigating Technologies:
We are getting close to finishing up the final harbor rotation of this quarter. Portfolios and projects need to be completed by Thursday.

Anatomy and Physiology:
Today was a review/preparation day for the respiratory system exam scheduled for tomorrow. Teh major announcement of the day was the 3rd quarter portfolios will be OPTIONAL, since a lot of us will be gone to the state tournament on Thursday.

Biology:
1. We took quiz 3.6, primarily dealing with patterns of evolution.
2. A new Bio-Bulletin was distributed. Individual progress reports were printed on the backs of these. They will need to be signed and returned as part of students' third quarter portfolios.
3. Speaking of portfolios, the remainder of the period was work time to get started assembling these. Please note that students can choose whether they want their portfolio to go on their 3rd quarter or 4th quarter grade. If it's going to go on the 3rd quarter grade, then I need it by Wednesday. If it's going on the 4th quarter grade, then I don't need it until after spring break.
4. There will be two evolution tests this week. The district summative assessment will be tomorrow, and my test will be on Thursday. Any student that is absent on Thursday can either take the test Wednesday before school, or can take a temporary incomplete on their report card and then complete the test after spring break. If our girls basketball team is not playing on Friday, the test can be made up at school Friday morning before 10::00.

Obama Lifts Stem-Cell Ban


President Barack Obama today signed an executive order that will allow federal money to be used for embryonic stem cell research. This order essentially overturns a ban placed on the use of federal dollars for this type of research during the Bush administration. Embryonic stem cells are taken from a human embryo when it is about 9 days old (at this stage its called a blastocyst) and is a ball of a few dozen cells. At the center of this ball of cells are embryonic stem cells which have not yet differentiated. To put it in simple terms, these cells are all identical and haven't yet decided what they want to be when they "grow up". Some of these cells will become muscle cells, some heart cells, some nerve cells, some skin cells, etc. This is why we call them stem cells.

In order for these cells to be used in research, scientists must "harvest" them from a blastocyst. Opponents of this type of research argue that since a blastocyst is a human embryo at its earliest stage of development, to destroy it is essentially to destroy human life. Science advocates claim that, since these embryos are the "left overs" from in-vitro fertilization procedures and would never be implanted in a human womb anyways, then they might as well be put to legitimate use. And since these cells have the potential to become any cell type in the body, their uses in the treatment of a wide range of diseases is very promising.

The policy adopted by the Bush administration was that federal money could be used to fund existing lines of embryonic stem cells. The idea here is that the "damage" had already been done, so they might as well continue to use them. What was banned under Bush was the funding of new lines of embryonic stem cells, which prevented federal funds from funding the destruction of more embryos. Keep in mind that this research was never made illegal...it just wasn't publicly funded.

Obama's order to lift this ban will allow the National Institute of Health to establish federal guidelines for embryonic stem cell research. It is being widely praised by pro-science advocates as a return to "science over ideology" in government. On a personal note, I've made references here before that I support the current administration's efforts to return science to a legitimate place in public policy. However, to equate opposition to embryonic stem cell research (which is based on a fundamental belief as to when human life actually begins) with a denial of global warming (which is based on a consumerism and the influence of the Big Oil lobby) isn't just or equitable. It would do the pro-stem cell folks some good if they could practice a bit of humility in accepting why people may have such a strong aversion to this type of research.

And on the other side, why is it that religious groups (such as my own Catholic church) are so vocal when it comes to opposing this type of research, yet remain relatively silent on the ethics of the in-vitro fertilization practices that result in the hundreds of thousands of embryos destined to never be implanted and given the opportunity to grow into a person?

Countdown to Discovery


The countdown to Wednesday's launch of the Space Shuttle Discovery (STS 119) began yesterday at the Kennedy Space Center in Florida. The two-week mission will be primarily focused on adding the last set of solar panels to the International Space Station, and will feature up to four spacewalks. In addition, one of Discovery's crew members (Japanese astronaut Koichi Wakata) will remain on the International Space Station at the completion of the mission, and one of the ISS crew members (Sandra Magnus) will be hitching a ride home on Discovery after being in space since November 14th.

Sunday, March 8, 2009

You Deserve This...


A HUGE congratulations to the EHS girls' basketball team and their coaching staff for winning last week's class 4A sub-state tournament on their home court. Following an opening round win against Spring Hill, the Lady Cards upset K.C. Piper and St. James Academy to win a berth in next week's state tournament in Salina.