Monday, July 30, 2007

Volcanoes, mice

Two more journal articles to relate.

Most recently, there's the miraculous story of burnt hairless mice saved by coffee and exercise wheel running. Scientists reckon that caffeine and exercise both promote apoptosis, or programmed cell death. This is a deal (I'm not sure how big a deal) because

1) The cells that are killed are those that have been damaged by UVB radiation (one part of the sun's radiation spectrum). It's good to kill these because if they live they could turn cancerous.

[This reminds me of my Win-Win Law of Pharmaceutical Research: Whatever illness you're trying to cure, if your drug / treatment works, you're happy. But, if the drug / experimental conditions kill all your cells, you're also happy, because you've identified a possible cancer-cell-killer!]

2) they act synergistically. The effect of the two combined is 5 times as effective as either on its own. There's still a jazillion variables that need to be explored (amount of caffeine, type of exercise, other types of radiation etc), but it's an interesting result. Poor little burnt hairless mice.

Less recently, there's the story of Italian volcanologists unearthing the mysterious inner workings of volcanoes.

It turns out that the rumblings of certain kinds of volcano, named after Mt Stromoli off the coast of Italy, emanate from deep within the earth. These big bubbles of gas, called gas slugs, were analysed after fizzing out of the volcano. Judging from their chemical composition, it was deduced that they must have come from deep down near the mantle, rather than a few hundred metres down where volcano-related earthquakes occur.

Imagine being a volcanologist.

2 comments:

Dinnie said...

Hi there Hamish!

I was researching Cosmos magazine as a potential market for my story ideas, and I found a few of your stories. I see that you are a regular contributor. Excellent topics and writing!

Dinsa

Hamish Clarke said...

Thanks Dinnie!

I've visited your blog, and see it's still in the works. That's quite a bright pink you've got there!

Judging by your blog title, I'm guessing your story ideas revolve around butterflies or Franz Kafka. Am I right?