jfoldbar

yep, i know. but i gotta start somewhere yes, i have learnt his from YT this is a very good point. im not a student. im just a regular dumb joe that sometimes likes learning all kinds of science stuff thats way beyond me. this crossed my mind too, and i wondered the difference (if any) between liquid and gas this is one thing i wonder too. how does what happens in a pipe, also relate to what happens over a wing yep. at the moment i want to keep it to bernoulli as much as possible. i realise because my end goal is flight, the discussion will spill over a bit. but try to keep to one subject at a time if possible, as im all ready getting lost thanks

but, at 8000m high, wouldn't the ratio of air molecules vs wing molecules be really different? when theres very little air, how can there be enough air molecules for the ones that bounce of the wing to be crashing into?

so, i was thinking bout this video, and i have a few thoughts. the vid shows the a fluid changing from a larger pipe to a smaller pipe. which means an enclosed space. but if this principle applies to the top side of a wing, would the concept be lessened because there is only one side. so when the air atoms are flying over the wing top, some of the atoms will hit the wing direction, but most will fly upwards. also, wouldnt this concept be lessened too by altitude?

thankyou. this was exactly what i was looking for. an explanation as to the "why". hhhmmm... thinking...

i decided i want to try to "understand" how a plane can fly. if thats even possible for a layman like me. so ive been watching a bunch of videos, but still so many questions. and you cant ask a video anything. so, i thought i would try here. because this is essentially a tricky subject, i thought i would break it up into mini subjects. so the first subject is Bernoulli's principle. now i know this is not the whole picture of why a plane can fly, but it is some of the picture. so, first up i thought it better to try to understand this. so, as i understand, Bernoulli's principle states that an increase in a fluids speed lowers its pressure. the thing i cant find on any YT vid is the 'why'? what is happening on an microscopic scale? even though my end goal is to try to understand flight, for the sake of simplicity, we should try to keep it to Bernoulli's principle as much as possible, i will make a new thread later for the next part. try to keep answers in simple language. (im a laymen). but detailed. thankyou

respectfully, im going to leave it here. you are not grasping what im asking and i cant explaining it any better.

ok ill try again. forget the hippocampi for a moment and just consider that men and woman are different. in many ways. physically, mentally and emotionally. try replacing strong fred with weak sarah. strong fred may not be a gym bunny but hes stronger simply because hes male. if sarah wants to put it over fred, she could go to the gym and become iron woman. may stil not be enough. but what if she also goes and shoots up on all these drugs that essentially make her male. she is no longer sarah, let alone weak sarah. the the question if sarah is stronger than fred is invalid because sarahs not here any more. so the average woman has more trouble reading a map than a man. this could be some impulse/ learned trait that stems back thousands of years to hunter gatherer days. but that is what makes her a woman. those intrinsic difference are what we (generally)love about the opposite sex. take those away and they wouldnt be the opposite sex. if we could scientifically calculate every difference between man and woman and go back in time to make the adjustments so that there are no differences, then there wouldnt be man and woman. thus making the question invalid. on the small scale little girls that get cars instead of dolls can be tom boys when they grow up. so by the mum giving them cars they slightly take away 'the little girl'. stretch this over history and any change that we could have done to change the differences in people would result in there being no difference thus removing the need for us to ask the question. so we have all variety from the most masculine men to the most feminine female, and every variety in between. we have men that act more like woman do, and we have woman that act more like men. these are the few. of course there is no way to determine throughout history were various leaders/rulers whether male or female, a manly man or a womanly man, or vice versa. but statistically it stands to reason that the majority would have been within the normal range. what i mean is if you got every male leader from every time and lined them up, the majority of them would be manly men. but of course this doesnt take away from the fact that there would have been the opposite, even to the extreme (bad word i know) that there was probably some leader that was gay and spoke and acted very feminine and probably wanted to go shopping with the girls and look at handbags/shoes. but im talking averages, not particular examples. because there is always en example that bucks the trend. i dont know how to explain it any better than that. so i hope you get it otherwise i would simply say something like 'better to lock the thread'

im thinking then that when i say society i am actually using the wrong word. sure, there is a place in africa when woman are the top dog, but africa as a whole is the opposite. theres a place in china where woman are top, but china as a whole has men at the top. im talking about the averages overall, not the small pockets that dont fit the norm so when i had this conversation with my daughter, i realized i had to clarify something that i didnt have to with my wife. perhaps i may need to here, but hard in a forum so i will try with an analogy. if i ask who can lift more out of strong fred and weak john, everyone would say strong fred. however if weak john went to the gym everyday and trained real hard then mayby he could then lift more than strong fred, however he is no longer weak john he is now strong john. so the point is still valid that strong fred could lift more than weak john, because weak john had to change from being weak john in order to lift as much. let me know if this analogy makes sense to you. perhaps if you read it again you will see that i claimed woman are/think different, not less capable. my workmates are men. and if they were woman would not have made a difference. i still would have discussed it with them the same . im an adult, and they are adults there is nothing wrong with open philosophical discussion regardless of your gender.

not sure where you are from. but in my neck of the woods men and woman are very different. can u point out a society where men are not the dominant. i can not think of any. please show me where i claimed men are so much more capable than woman? what difference does the gender of my workmates have to do whether i can type this? hhhmmm. interesting that you have observed the opposite. i guess that just goes to show how different our perceptions are prometheus. i like your detailed response. so if woman have smaller hippocampi that may affect their ability to navigate. this may be a factor in all the main explorers throughout history being me. just an idea? this makes me wonder, are there other physical difference within our brains that may affect the way we think. there are obviously other differences though. hormonal etc that can play a role in our thinking. i agree with your point about sending men into battle. from a physique and breeding point of view. but how about a marcho thing? men would probably think because they are the protectors of their woman it is their duty to go and fight for their woman. society says its the right think to do. a bit like letting woman(and children) off a sinking boat first. (dont get me wrong here im not suggesting we dont do this) so with the workmates discussion last week one example came up. so lets say if a man is trying to reverse a trailer, and a woman is also trying to reverse a trailer. my experience is that the man can reverse the trailer better because a woman will turn be turning the wheel wrong way all the time and gets all confused.. and if a woman is cleaning the house then she can see dirt that the man simply cant see. these are differences in the way we think/calculate etc. but it seems you are suggesting these are learned traits and not a biological thing. but this would imply that both sexes can learn the same thing at the same rate. which i dont think is the case (i have no actual evidence for this though) so, to get a different viewpoint, i also asked my wife and my daughter this same question. they both agreed with me. they both think that the natural differences in woman/man would make a difference in how things are achieved in society. ie, they both think that if a woman has 5 lessons at reversing a trailer, a man may only need 4 lesson to achieve the same result (for example, on average).

im not sure what topic this goes in so i put it here. so a few work mate were discussing something. id like some input. the world we live in, throughout all of history, has been dominated by men. even from hunter gatherer days until now, in every society, men were calling the shots and woman were put in the "seen but not heard" category. so what if we lived in a world where that was reversed. if the men were "seen but not heard" and woman where in charge and calling all the shots, what would be different. so our discussion was that , i think in the woman world, there is much less chance of things like going to the moon, inventing airplanes, inventing cars, big infrastructure, coming about because a womans brain works much different to mans and for woman to think this stuff up , and implement it, is much harder. a mans brain is more objective, a womans is more subjective. and subjective doesnt get you to the moon, objective does. workmate thinks that whether we are subjective or objective is irrelevant to the big things that humanity has achieved. the objective mind can get you to the moon just as quick, but it would somehow be achieved a different way. a way that in this man dominated world we cant even imagine. who is right?

yep. its there. for some reason when i looked a few days ago it wasnt. not sure why. all good. thankyou for pointing that out

really. hhhmmm. i joined about a week ago. i did ask a question like this. but then i couldnt find it anywhere on forum 10 minutes after posting it so i was thinking either it was deleted or i didnt actually post it when i thought i did. can you show me where i posted it before because i cant find it. also thankyou for moving this to the correct place. "introduce yourself" thread.

thankyou for the replies and reassurance. i would hope in this forum, if an uneducated person like myself asks a question that doesnt quite make sense to others, instead of it simply being deleted without explanation, i would ask for help in rewording it so others 'get' what im trying to ask.

hi everyone. im new to this forum. i hope i have posted this in the right place. i could not find a 'welcome' area. i have an interest in most science topics, however i am not what one would call 'educated'. this has been very frowned upon in another forum and am hoping i am welcome here. if people who are not educated are not welcome here i would prefer someone let me know so as to not waste anyones time. thankyou

hi all. im new to this forum and hope i can join this place for discussion. while i have an interest in most science subjects, i dont consider myself to be educated (no university) and have had problems on another forum because of this. my experience there was that uneducated people seemed to be unwelcome and so their questions are simply ridiculed and deleted without explanation. my hope is that this forum is a bit friendlier, and more understanding towards people with no uni degree. and if something is not worded correctly, rather than just deleting, please try to discuss. like, why was it deleted, how can i re-word to come across correctly. if discussion from an uneducated person is not welcome here, i would rather someone let me know so as to not waste anyones time. thankyou