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Feb
27
awarded  Yearling
Jan
30
comment Does the Hodgkin-Huxley Model take into account the action of the ion pumps (e.g., Na-K-ATPase)?
The concentration differences do not vanish! An action potential requires extremely small ion fluxes, and thus the concentrations of sodium and potassium ions are mostly unaffected. In very small cells, with continuous activity, the internal concentration of ions can shift slightly. This is not a factor in the HH experiment, where the volumes both internally and externally are large and an infinite reservoir of ions is a reasonable approximation.
Nov
2
comment What makes people easily subscribe to pseudoscientific theories?
I really like this answer, but this discussion about whether predictions are essential to science is sort of puzzling. I think the term prediction is just being used in different ways. We can agree, I think, that a valid scientific statement or theory requires a testable hypothesis (at least in principle), which I would call a prediction. If it does not then it can no longer be called a scientific statement. Most experiments are a form of inductive reasoning about such predictions -- if A then B. B is true, so A is more plausible. Or, just as importantly, B is false, so A is less plausible.
Nov
2
revised What makes people easily subscribe to pseudoscientific theories?
Added a link to Feynman's (excellent) talk that coins the phrase "cargo cult science"
Nov
2
suggested suggested edit on What makes people easily subscribe to pseudoscientific theories?
Nov
2
revised Do we understand the non-subjective mechanisms behind pleasure and pain?
deleted 175 characters in body
Sep
16
awarded  Nice Answer
Feb
28
awarded  Editor
Feb
28
revised Do we understand the non-subjective mechanisms behind pleasure and pain?
added, probably unstable, links to free pdfs
Feb
27
awarded  Supporter
Feb
27
awarded  Teacher
Feb
27
answered Do we understand the non-subjective mechanisms behind pleasure and pain?