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visits member for 2 years, 2 months
seen Apr 16 at 14:01

profile for Memming on Stack Exchange, a network of free, community-driven Q&A sites


Feb
6
comment What do you see if you look at your own retina with the same eye? (optical feedback)
There wouldn't be any feedback loop, because retina is not an "output device". You'll need to wire the eye to the visual cortex or something to have a feedback loop you want.
Feb
6
awarded  Yearling
Jan
29
comment Determining a patients biological age?
How is a "biological age" defined? It doesn't sound like it would have a precise definition, but maybe I am ignorant.
Jan
12
comment Breathing in and out
My understanding is that gas exchange is a simple diffusion process in the alveoli level. When there's a concentration difference, it happens. It happens for every molecule simultaneously.
Jan
10
comment Sexual selection in cats or other animals
it would be great if you can make this more digestible.
Jan
5
revised Why don't plants get sunburned?
typo fix
Dec
16
comment Death because of no radio waves
I never heard of anybody dying in a Faraday cage, so I don't think lack of EM or natural electric field has any effect, at least short term.
Dec
16
comment Death because of no radio waves
I see. So less than GHz range? Could you update your question to clarify this? :)
Dec
16
comment Death because of no radio waves
what frequency of EM wave, then, are you talking about? Without the magnetic field of earth, there would be too much solar wind/cosmic ray as well.
Dec
16
comment Death because of no radio waves
note that visible light and infra-red are also EM waves. Humans can survive in total darkness for a while though....it would be pretty cold too!
Oct
24
comment The Operation of tuning in the S1 layer of ventral model
I'm quite busy at the moment. Perhaps tonight I might have some time to answer this. :'(
Oct
24
comment How do trees lift water higher than 10 meters?
Thanks for the comments. Since @fileunderwater did a great job, so I won't bother updating my answer. :)
Oct
23
revised How do trees lift water higher than 10 meters?
deleted 1 characters in body
Oct
23
answered How do trees lift water higher than 10 meters?
Oct
21
comment Detecting UV by humans
Anecdotal comment: Similar to your experience, I also feel pain in my eyes on certain cloudy days, if I stare at things outside. I always suspected it was due to UV, but never measured anything.
Oct
21
awarded  Nice Question
Oct
21
awarded  Revival
Oct
21
awarded  Mortarboard
Oct
21
awarded  Nice Answer
Oct
21
comment Ventral stream pathway and architecture proposed by Poggio's group
@Liszt Yes, I'll answer your question. (unless someone else does) :P