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.