11.18.11

Today Jessica gave a presentation on prions. She talked about how prions are misfolded proteins that can cause nearby proteins to misfold as well. Unfortunately, our bodies have no defense mechanism against prions, so they are responsible for deadly, untreatable diseases like the mad cow disease.

Next, Marcus performed an experiment involving dry ice (solid carbon-dioxide) in a sealed container. Marcus poured dry ice and water into a bottle, sealed it, and ran. The dry ice sublimated, turning into gas) causing pressure within the bottle to skyrocket until it finally exploded. We recommend that you do not try this experiment on your own, because there are serious risks involved (premature explosions, shock waves, etc.).

There will be no meeting next Friday, as there is no school. Also, remember that T-shirt designs are due by November 30th. 

Have a great Thanksgiving everybody!

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