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visits member for 1 year, 5 months
seen Mar 30 at 8:54

Not to be offended


Mar
12
comment Why do humans find baby animals cute?
Yes thanks, but opposition is still stronger :)
Mar
11
comment Why do humans find baby animals cute?
Don't see upvoting.
Mar
11
comment Why do humans find baby animals cute?
I can't ask them, but I can observe their behavior. If weak child died because he cannot consume food, there was no behavior, directed against him. But if child was pushed out the nest by other child -- antipathy behavior was explicit.
Mar
11
comment Why do humans find baby animals cute?
We were speaking about explicit sympathy and antipathy. Implicit degrading of weak children is not the topic.
Mar
10
comment Why do humans find baby animals cute?
Where do you see competition between children, in which animals? Usually children are fighting to train, but not to kill each other. Competition is low even between adults of the same specie.
Mar
10
comment Why do humans find baby animals cute?
So, you think liking animal babies is a side effect of liking our own babies? But if this behavior would disadvantageous, it would eliminated by evolution. Remember about cuckoo, which hates foreign babies. Obviously, hormones you are speculating about, can be much more specific, causing love to own babies and hate to foreign.
Mar
10
comment Why do humans find baby animals cute?
Domestication requires caring when babies. Human species, which didn't like animal babies, didn't domesticate anybody and failed competition with human species which did like babies. We are descendant of latter.
Nov
3
comment How was the heritability of IQ tested?
P.S. Explanation about what is child abandonment en.wikipedia.org/wiki/Child_abandonment
Nov
3
comment How was the heritability of IQ tested?
My question is how verbal (educational) inheritance was excluded. Your answer is it wasn't at all? Comparing monozygotic and dizigotic twins does not help to exclude education. Monozygotic twins can show lower variation just because they respond to education similarly.
Oct
30
comment Are all body atoms really recycled several times during a life?
But how do we know that other atoms are turned over? May be ribosome or cytoskeleton proteins are also persist?
Oct
30
comment How is it proved, that antediluvian people didn't live for hundreds of years?
Thanks a lot! But I would like to have some "killing" argument, not Occam or Popper like :)
Oct
24
comment How do trees lift water higher than 10 meters?
Everybody get plus, but I still can't accept minus 15 atmospheres in trees. Of course I agree that metastable states can exist in principle. Will explore all this...
Oct
24
comment How do trees lift water higher than 10 meters?
@AtlLED I don't exclude nano hydraulics, but wish to have justified answer.
Oct
24
comment How do trees lift water higher than 10 meters?
Please see my update. Ability to resist negative pressure is called "tensile strength". And ability to resist minus 15 atmospheres equals to tensile strength of concrete. Do you yourself believe that trees turn water into concrete?
Oct
24
comment How do trees lift water higher than 10 meters?
So, the point of this video is that water can behave as solid body and express tension up to minus 15 atmospheres if put into small capillary. Can this point be proved by direct experiment? I don't believe it as is. Also I think, that if that would be true, it would have some subsequences. For example, if tree cut at a hight level, we should hear shot sound like taut string cut...
Oct
24
comment How do trees lift water higher than 10 meters?
@Amory capillary with 10nm diameter can't lift the water to 3 km, I already said that. If somebody states this, he or she is just wrong. Of course, I can be wrong too, but I have an explanation of my point (see above), while others just use Jurine's law blindly.
Oct
23
comment How do trees lift water higher than 10 meters?
@AlanBoyd I explored it, but found no answer; may be I missed it, then, if you didn't, please, answer the question.
Oct
23
comment How do trees lift water higher than 10 meters?
@SatwikPasani suggest any other force that can rise water, this is the question. Menisci can't. If it can, then pumps would not required to water supply buildings. We would use just thin capillary.
Oct
23
comment How do trees lift water higher than 10 meters?
@fileunderwater I don't thinks trees contradict physics. I think biologists do, if they think that capillary forces can rise water to 100 meters.
Oct
23
comment How do trees lift water higher than 10 meters?
@fileunderwater I am open to any answer, including "we don't know". But I can't accept capillary forces and cohesion-tension because they would violate Pascal's law.