Friday, February 19, 2010

Channel Energy

It has been bothering me that we have been ignoring energy except for one slide early on. This is a quick video that explains the mechanics of the energy component for the channels (highschool bio basically).

http://www.youtube.com/watch?v=iA-Gdkje6pg
(elaborates more on what Ari's video mentions)

Thursday, February 18, 2010

Transatlantic cable

The cable was indeed laid by having two boats meet in the middle of the ocean, although it took several attempts. See http://en.wikipedia.org/wiki/Transatlantic_telegraph_cable#Transatlantic

While that article does not mention Peter Cooper, this was taken from his wikipedia page. "In 1854, Cooper was one of five men who met at the house of Cyrus West Field and formed the New York, Newfoundland and London Telegraph Company. He was among those supervising the laying of the first Transatlantic telegraph cable in 1858."

Brain- Computer interface

For patients with neuromuscular disorders, MLS etc.

http://www.slideshare.net/guest9006ab/braincomputer-interfaces

Thoroughly explains each state of the AP and what is happening in/out of the membrane

http://bcs.whfreeman.com/thelifewire/content/chp44/4402s.swf

Action Potential Video

This video does a thorough job explaining how an action potential travels down an axon:

Wednesday, February 17, 2010

Action Potential Animation

http://outreach.mcb.harvard.edu/animations/actionpotential.swf

This interactive animation on action potential explains different stages of action potential in terms of sodium and potassium ions movement across the membrane through sodium channel, potassium channel and a Na+/K+ pump.