4
votes
Efficiency of molecular motors vs. human-made motors
I think that statement is misleading because it is too vague. Yes diesel and gas engines are inefficient, however electric motors typically average between 80-95, depending on the range of rotation ...
3
votes
Can a mathematical function be assigned to ECG diagram?
Yes a function could be assigned to an ECG diagram. I don't know if that would be helpful in any kind of research. Anyway I believe that from a mathematical point of view that if you manage to include ...
3
votes
Efficiency of molecular motors vs. human-made motors
It is referencing an out of date study poorly.
The efficiency of F1-ATPase has been measured at so close to a hundred percent that the margin of error of the measurement, exceeds the difference. BUT ...
2
votes
How badly will warmer air affect birds' ability to migrate long distances?
I suppose it is (sometimes) exactly the same for birds as for planes.
[same]
Newton's second law tells us that Force = mass times acceleration, and Newton's 3rd law tells us that for every force there ...
2
votes
Accepted
Does thermal shock apply to human bones?
No is the answer to this - stop a think for a little bit. If this were the case, there would be many thousands of such incidents observed every year, and no-one would ever do such things as plunge ...
2
votes
Do hair cells in the ear also vibrate at frequencies outside our hearing spectrum?
Hyperphysics has a good overview of human hearing from a physics perspective you may want to check out. It should clear up some misunderstanding you have.
First, the idea that hair cells in the ...
2
votes
Accepted
Action Potential and Impulse Direction
This is due to the refractory period at the end of each impulse. From here
The cell membrane cannot immediately produce a second AP. The period of time when the majority of voltage-gated Na+ channels ...
1
vote
Accepted
Why don't membrane potentials violate the principle of electroneutrality?
There is perhaps Pauling's principle of electroneutrality "each atom in a stable substance has a charge close to zero" - maybe that's the principle referred to in your book? "Close to&...
1
vote
Can Sleeping With Reptiles Reduce Excess Body Heat from Your Partner?
Reptiles are generally ectothermic or "cold-blooded", not to be confused with exothermic. This means they largely use environmental heat sources to get their heat, rather than generating it ...
1
vote
How does Bernoulli’s Principle apply to the cardiovascular system?
I love this question, and there is a number of things to unpack.
Exactly where we are measuring a pressure in that circut matters. We usually measure a persons BP in the brachial artery, so relatvely ...
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