Tuesday, December 19, 2006

Nature junkie

I recently got my climbing fix! Been experiencing withdrawal symptoms and had to get myself a quick one. So, I braved the early morning cold and lack of sleep to climb Bukit Tabur in Melawati with friends from my church.

There's just something about nature and the mountains that wakes me up. It helps me refocus when I feel all claustrophobic as life begins to squeeze its weight on me. There's only so much room in life to fit self in and still feel comfortable. So as self begins to grow out of proportion, some re-sizing is in order. What better way than to see for yourself how huge creation is and how small you are in comparison, how colourful nature is and how you pale in comparison? Nice to be small again!

Wow! Natural sciences just became philosophy in nature. If you didn't enjoy that thought, here are some pictures for your viewing pleasure.


Wednesday, December 06, 2006

Action potential and synapse

As promised, I managed to get animations to help us better understand the movement of action potential.

http://highered.mcgraw-hill.com/sites/0072437316/student_view0/chapter45/animations.html#

The site above has a few animations on the subject but the one on the action potential movement is the one called action potential propagation. However, it only explains as far as the 'local circuit' and does not go on to explain about the sodium and potassium ion movement. Looking for an animation on that one is a bit more tricky.

Apart from that, here's another site with a good animation on synapse.

http://bcs.whfreeman.com/thelifewire/content/chp44/4402003.html