Tuesday, May 25, 2010
Why does helium make your voice so high pitched?
Answer:
Taken from "The Naked Scientists" forum:
If you imagine your throat as a bit like an organ pipe, when the organist plays a note, one cycle of a wave, with a wavelength approximately the length of the tube, is generated inside the pipe. So when you talk you produce sound waves with wavelengths determined by the length of your throat.
The speed of a wave (c) is given by multiplying the wavelength and the frequency together (c=l.f) and this can be re-arranged to find the frequency of the sound wave (in other words how high it sounds) (f), thus : "frequency = speed divided by wavelength" or f=c/l.
But helium is less dense than the other consitutents of air and so sound travels much more quickly in helium (900 metres per second) than in air (350 metres per second). Substitute these numbers into the forumla we got above (f=c/l) and you get a value for f (helium) 2.5 times greater than f (air). As a result you voice sounds 2.5 times higher when you breathe helium.
Conversely, if you were to breathe a denser gas than air you could make your voice sound much lower.
Divers breathing a helium-rich mix (to overcome the problem of increased gas density at extreme depths) talk to their support crew using a "helium voice unscrambler" which reinforces the lower notes in their voices whilst suppressing the higher tones so that they can be understood.
density of the gas
Why does health begin to decline slowly once you're in the 20s+?
Is it in the genes? Environment? Why?
Answer:
Let me first correct ur perception of health. WHO (World Health Organisation) describes health as presence of physical %26 mental well being %26 not just the absence of disease. It seems u r lacking the feeling of physical %26/or mental well being because health does not begin 2 decline in 20s.
The growth of body does stop at this period but ur health does not start 2 decline so early. As long as body is able 2 reproduce the destroyed cells, the health remains ok. It remains good if u avoid health taboos like smoking %26 alcohol, over eating %26 lack of exercise.
When u have crossed middle age, ur health would start going down hill slowly as the vital organs may start showing signs of fatigue since their destroyed cells r not being replaced at a desirable rate. This land mark has a very wide margin of variation depending on the over all state of body systems of the individuals like presence/ absence of diseases like diabetes, high blood pressure, heart diseases , cancer etc.
So, relax %26 enjoy ur 20s, 30s %26 40s---------.
Because we're ageing every day. Every day we're a day older. That's why the change is so suttle.
there is a slight decrease in metabolic function on the mid 20's. besides that the health does not decline in the healthy athletic individual
There are professional athletes performing really well on into their forties. So, I'd suggest you eat well, exercise daily and take care of yourself without becoming obsessed with it and you'll be fine. Average life expectancy for a woman in the US is about 80, so I wouldn't stress out if I were you.
It's in the lifestyle, once a Dawg is in his 20s+ he gets in a lot of vices like: Drinking, smoking and munching a lot of greasy and junk foods. And, there is also stress in work and in home. You see a 20s+ Dawg has to work inorder to survive, and surviving the 21st centrury has gotten a whole lot harder.
It's b'coz today we r living in the polluted atmosphere ,and sometimes b'coz of genes,as u know,health begin 2 decline,today we r taking too much fast food,which includes harmful things in it,everything is polluted,we even don't get fresh air,water.Our lifestyle is fully changed as compared 2 past 50 years generation.today people only work,work n work,they r always busy in doing something,they live in nuclear families,they don't get time 4 their family members n 4 friends,they eat what they get easily,not that which is healthy,they don't take sleep they need,so they r becoming old at 20+
Unless one is very sick with an illness it should not decline at that age. That is the age most doctors get there degrees and get started. If your having problems eat better and exercise more.
In my first year in pre-med school, the Doctor who was giving a lecture on longevity opened his remarks with a time bomb; " Ladies and Gentlemen, what I am about to tell you about life and living begins at the beginning. We begin to die, the minute we are born. It is a little bit like buying a new car, that has built in obsolesce with its parts. And so it is with our bodies. Some of the deterioration takes place faster with one person than someone else. It may be genetic; environmental or a combinations o both. " I never forgot that speech, !
Answer:
Let me first correct ur perception of health. WHO (World Health Organisation) describes health as presence of physical %26 mental well being %26 not just the absence of disease. It seems u r lacking the feeling of physical %26/or mental well being because health does not begin 2 decline in 20s.
The growth of body does stop at this period but ur health does not start 2 decline so early. As long as body is able 2 reproduce the destroyed cells, the health remains ok. It remains good if u avoid health taboos like smoking %26 alcohol, over eating %26 lack of exercise.
When u have crossed middle age, ur health would start going down hill slowly as the vital organs may start showing signs of fatigue since their destroyed cells r not being replaced at a desirable rate. This land mark has a very wide margin of variation depending on the over all state of body systems of the individuals like presence/ absence of diseases like diabetes, high blood pressure, heart diseases , cancer etc.
So, relax %26 enjoy ur 20s, 30s %26 40s---------.
Because we're ageing every day. Every day we're a day older. That's why the change is so suttle.
there is a slight decrease in metabolic function on the mid 20's. besides that the health does not decline in the healthy athletic individual
There are professional athletes performing really well on into their forties. So, I'd suggest you eat well, exercise daily and take care of yourself without becoming obsessed with it and you'll be fine. Average life expectancy for a woman in the US is about 80, so I wouldn't stress out if I were you.
It's in the lifestyle, once a Dawg is in his 20s+ he gets in a lot of vices like: Drinking, smoking and munching a lot of greasy and junk foods. And, there is also stress in work and in home. You see a 20s+ Dawg has to work inorder to survive, and surviving the 21st centrury has gotten a whole lot harder.
It's b'coz today we r living in the polluted atmosphere ,and sometimes b'coz of genes,as u know,health begin 2 decline,today we r taking too much fast food,which includes harmful things in it,everything is polluted,we even don't get fresh air,water.Our lifestyle is fully changed as compared 2 past 50 years generation.today people only work,work n work,they r always busy in doing something,they live in nuclear families,they don't get time 4 their family members n 4 friends,they eat what they get easily,not that which is healthy,they don't take sleep they need,so they r becoming old at 20+
Unless one is very sick with an illness it should not decline at that age. That is the age most doctors get there degrees and get started. If your having problems eat better and exercise more.
In my first year in pre-med school, the Doctor who was giving a lecture on longevity opened his remarks with a time bomb; " Ladies and Gentlemen, what I am about to tell you about life and living begins at the beginning. We begin to die, the minute we are born. It is a little bit like buying a new car, that has built in obsolesce with its parts. And so it is with our bodies. Some of the deterioration takes place faster with one person than someone else. It may be genetic; environmental or a combinations o both. " I never forgot that speech, !
Why does having a fan on make me sick?
Whether its a window fan, or a standing interior fan, or a ceiling fan, I always end up with an earache or a stuffy nose or a sore throat.. or all three. WHY? I am only allergic to dust and mold, and my house is clean.. so what is it about the fan that makes me feel sick?
Answer:
No matter what there is always dust in the air. And the fact is the fan blows it down on you, and you breathe it in. And what probably happens is, your nose gets stuffy first, so then your body breathes through your mouth and you throat gets irritated. But , one thing that could reduce the amount of pollen and allergens in the air, is to get a really good air conditioning filter, look for merv 11 or higher, it helped my sinuses tremendously. Good luck, you could also ask your doctor if you might wanna be on zyrtec or something.
It definitely sounds like allergies! Fans blow dust around and it's impossible to have a completely dust free home. Try Claritin OTC or see your doctor for a prescription if Claritin doesn't work. You may also want to look into a good air purifier.
Hope you feel better soon!
just because ur house is clean doesnt mean ur fan is clean.
If your fan is not extremely clean it will be blowing dust particles right at you. This may cause a stuffy nose or sore throat. Try either turning the fan away from you or set to oscilate. MAKE SURE ITS VERY CLEAN. I sleep with a fan on every night..
Answer:
No matter what there is always dust in the air. And the fact is the fan blows it down on you, and you breathe it in. And what probably happens is, your nose gets stuffy first, so then your body breathes through your mouth and you throat gets irritated. But , one thing that could reduce the amount of pollen and allergens in the air, is to get a really good air conditioning filter, look for merv 11 or higher, it helped my sinuses tremendously. Good luck, you could also ask your doctor if you might wanna be on zyrtec or something.
It definitely sounds like allergies! Fans blow dust around and it's impossible to have a completely dust free home. Try Claritin OTC or see your doctor for a prescription if Claritin doesn't work. You may also want to look into a good air purifier.
Hope you feel better soon!
just because ur house is clean doesnt mean ur fan is clean.
If your fan is not extremely clean it will be blowing dust particles right at you. This may cause a stuffy nose or sore throat. Try either turning the fan away from you or set to oscilate. MAKE SURE ITS VERY CLEAN. I sleep with a fan on every night..
Why does fat tend to accumulate in the breast area?
Answer:
Because breasts are meant to have fat.
Men don't have breasts. We have chests.
Women have soft fatty breasts.
Mmmmm... This question makes me thirsty for milk.
Hormones. Estrogen is responsible for increased fat accumulation. This is why women carry more fat than men, more specifically in their breasts and hips.
Estrogen. I'm sure you've heard the relation between steroids and men getting large breasts. Your body would carry more estrogen while doing something like that (males).
Why does everyone want to be skinny like me?!?
Is it just me or am I setting a bad example for other people to be as skinny as me? I know its not on purpose, but people just keep asking me questions stuff like, "Can you give me tips on how to be as slim as you are?" They just want to be like me! I'm just natrually skinny and i do eat (i dont starve myself or anything but I did in the past.) Now other people are trying to starve themselves to get my look -_____-. I hate it! Everyone needs to get their own look!
P.S I'm 5'6 and I weigh 90 lbs and yes I do have skinny arms and skinny legs..unfortunately
Answer:
My mom always tells me that I'm painfully thin. I work at gaining wieght and I get paranoid and ask my friends "do you think I'm too thin? " (I think thin is unatractive by the way) Some of them just say that everyone else is at least 20lbs over-weight so I look thin in comparison. However in your case 5'6" @90lbs seems VERY thin.
um.. gain some weight.
and it kinda sounds like your braggin right now.
Cuase they hate the way they look
You want us all to tell you we want to be like you? You're sick, go get help. I like women with curves not looking like little boys. Grow up and fill out.
first of all u have too much time, and i have no idea y theyd wanna b like u, ur way too skinny!! u set a bad egsample to all those girls out there
wat the ****!?!?!
gain some wait
5'6 and 90 lbs is WAY TOO UNDERWEIGHT. It falls under the category of anorexia. You say you used to starve yourself in the past, but you obviously arent eating right now because your body would not keep itself that underweight. Go to the doctor, get a nutritionist, and put some meat on your bones. that is ridiculous.
i know what you mean, but i DO NOT want to b skinny. i am %26 every1 says, "ur too skinny" or "do u have a eating disorder" %26 i hate it! i eat alot %26 exersise regularly but im still too skinny! bye the way, im 4'10 %26 78 lbs. oh well, if they dont like it DEAL WITH IT. :D 鈾モ櫏鈾モ櫏
I don't want to be either as short or as skinny as you.
I like myself just fine the way I am.
And unless you're tiny-boned, 5'6 and 90 lbs is probably unhealthy.
hmm....i have 2 agree w/ thehellogoodbye u kinda sound like ur bragging unless what ur saying is true and is that bad,
1st of all ur not setting a bad example
2nd u can ignore them
3rd or if they're aking u 4 tips tell them the truth that its just natrual 4 u and ask them 2 stop bugging u cause if they really want tips tell them 2 go look on the internet
Wow, at 5'6 and 90 pounds you are dangerously underweight and this can lead to serious health problems that you may not see until years down the road. I always weighted 120 pounds in my youth and I too am 5'6. At 120 pounds I was extremely thin and so I cannot begin to imagine how thin you really are. People have become obcessed with thinness and it is a type of mental illness to desire to be thin to the point of starving ones self or purging after eating. Being thin this thin is not attractive and is every bit as repulsive as being extremely obese. Please get some help with your weight issue. You need to make sure you are properly nourished. I also think you need to surround yourself with friends that are secure with themselves and understand that to want to be this thin shows that they are mentally unstable and insecure. You do not need people in your life that think this way, especially when you admit that you have suffered with an eating disorder. I beg you to get help!
go eat at McDonalds everyday u really need to gain some weight it isnt healthy to be your weight its different if you were about 4'11 but you arent so u are under weight
Just ignore other people and don't worry about what they want to do. Take care of your own health. As long as you know you're happy with yourself, that's all that matters.
Well considering you did starve yourself, people think nit may work for them too. They may not realize it may be in their genes as well. But the reason a lot of people want to be thin can be because of today's unbelievably high expectation for how thin a woman should be or how big her boobs should or how Small her waist line is expected and many of these ideas come from supermodels and movie stars who set these impossible examples, that can be achieved in a healthy way.just tell them to keep a healthy diet! never to skip meals and to exercise, but not to go over board.
well, maybe everyone just wants to be skinny. if u saw someone with a trait u wanted wouldn't u ask them how they got it?
P.S I'm 5'6 and I weigh 90 lbs and yes I do have skinny arms and skinny legs..unfortunately
Answer:
My mom always tells me that I'm painfully thin. I work at gaining wieght and I get paranoid and ask my friends "do you think I'm too thin? " (I think thin is unatractive by the way) Some of them just say that everyone else is at least 20lbs over-weight so I look thin in comparison. However in your case 5'6" @90lbs seems VERY thin.
um.. gain some weight.
and it kinda sounds like your braggin right now.
Cuase they hate the way they look
You want us all to tell you we want to be like you? You're sick, go get help. I like women with curves not looking like little boys. Grow up and fill out.
first of all u have too much time, and i have no idea y theyd wanna b like u, ur way too skinny!! u set a bad egsample to all those girls out there
wat the ****!?!?!
gain some wait
5'6 and 90 lbs is WAY TOO UNDERWEIGHT. It falls under the category of anorexia. You say you used to starve yourself in the past, but you obviously arent eating right now because your body would not keep itself that underweight. Go to the doctor, get a nutritionist, and put some meat on your bones. that is ridiculous.
i know what you mean, but i DO NOT want to b skinny. i am %26 every1 says, "ur too skinny" or "do u have a eating disorder" %26 i hate it! i eat alot %26 exersise regularly but im still too skinny! bye the way, im 4'10 %26 78 lbs. oh well, if they dont like it DEAL WITH IT. :D 鈾モ櫏鈾モ櫏
I don't want to be either as short or as skinny as you.
I like myself just fine the way I am.
And unless you're tiny-boned, 5'6 and 90 lbs is probably unhealthy.
hmm....i have 2 agree w/ thehellogoodbye u kinda sound like ur bragging unless what ur saying is true and is that bad,
1st of all ur not setting a bad example
2nd u can ignore them
3rd or if they're aking u 4 tips tell them the truth that its just natrual 4 u and ask them 2 stop bugging u cause if they really want tips tell them 2 go look on the internet
Wow, at 5'6 and 90 pounds you are dangerously underweight and this can lead to serious health problems that you may not see until years down the road. I always weighted 120 pounds in my youth and I too am 5'6. At 120 pounds I was extremely thin and so I cannot begin to imagine how thin you really are. People have become obcessed with thinness and it is a type of mental illness to desire to be thin to the point of starving ones self or purging after eating. Being thin this thin is not attractive and is every bit as repulsive as being extremely obese. Please get some help with your weight issue. You need to make sure you are properly nourished. I also think you need to surround yourself with friends that are secure with themselves and understand that to want to be this thin shows that they are mentally unstable and insecure. You do not need people in your life that think this way, especially when you admit that you have suffered with an eating disorder. I beg you to get help!
go eat at McDonalds everyday u really need to gain some weight it isnt healthy to be your weight its different if you were about 4'11 but you arent so u are under weight
Just ignore other people and don't worry about what they want to do. Take care of your own health. As long as you know you're happy with yourself, that's all that matters.
Well considering you did starve yourself, people think nit may work for them too. They may not realize it may be in their genes as well. But the reason a lot of people want to be thin can be because of today's unbelievably high expectation for how thin a woman should be or how big her boobs should or how Small her waist line is expected and many of these ideas come from supermodels and movie stars who set these impossible examples, that can be achieved in a healthy way.just tell them to keep a healthy diet! never to skip meals and to exercise, but not to go over board.
well, maybe everyone just wants to be skinny. if u saw someone with a trait u wanted wouldn't u ask them how they got it?
Why does everyone judge me by my weight?
I am:
-15 years old
-Extremely athletic
-Muscular
-Constantly eating (I'm always hungry)
Here's the problem: I'm 5'7" and only weigh 110 pounds, so when first seeing or meeting me people automatically assume I have an eating disorder.
Why does everyone hae to be so freaking judgemental?
Answer:
Because that's how people work. They have to find something to judge you on. I have a friend who is about your height and weighs about the same as you, and also eats a ton. She eats more than anyone, but stays so skinny, and she also doesn't do any sports which make people bug her even more. People don't believe her when she says "I don't have an eating disorder, I don't go home and puke after eating a ton". They still call her anorexic. Whether it's out of jealousy, or pure obnoxiousness, they still do it. Humans in general are selfish and only think about themselves. They're judgemental and hateful. It's how some people work, and it's wrong.
Why do you have an eating disorder?
Human nature. honestly If you know you don't have a problem I would not be self consious of what others are saying they are most likely insecure about themselves and therfore want to have something to say about you. people will always judge others based on looks no matter what they look like
cuz ppl dont know the real u
society these days. sheesh
Because you ARE underweight, and none of that makes it better. If you're muscular, you should weigh more.
People can't help it, it's an unfortunate flaw of human nature. Everyone has to find a flaw in someone else or see something in someone else...
People do the same for me but I'm vice versa - I'm 5'7" (last I checked about 6 months ago) and I'm like, 170ish pounds.
Well i am the same hight as you and weigh 130 pounds. I am actually very low on the bmi scale. I have to try very hard to maintain my weight. People judge you because there is a very slim chance that some is just really skinny casue they are. That's the way the world is and there is nothing we can really do to fix it. So maybe you should try to gain weight to get to 120 and people will stop judging you. Though what really matters what you think about yourself and don't ever forget that.
because only u let them judge you, if you dress and act like u have a eating disorder...den u pulled them into letting them say that. When your friends or sumone says u look like ur anirexit or however u spell it. you should be like hell na i think ur and make jokes so they kno u are really not. people are judgemental because its life. once u think sumone is judgemental u have to look at yourself .and think you are prolly judgemental also in some certain way
Well, you don 't have an eating disorder. It 's just that like since you do sports , when you eat, your food gets digested faster %26%26 it turns into energy. That 's normal.
People have been subconsciously taught to judge on sight. 5'7 and 110lbs is not common in a child your age. What is common is a high metabolism and you have to feed your body if you are burning nutrients like that. have you had a physical lately? You should see the doctor annually for a complete physical. Also ask your parents what their body type was when they were your age. Also if you are a long distance runner then you will be slim anyway. Make sure you take the initiative to not judge on site, use this as a life lesson. People are superficial you know that if you watch T.V. or read Magazines so take this situation and use it for your good. They may be judging you on site now, but what about when you fill in? Then they will clamor to be your friend because of how you look so always remember that and make sure you don't do the same whether the person is large or small...
-15 years old
-Extremely athletic
-Muscular
-Constantly eating (I'm always hungry)
Here's the problem: I'm 5'7" and only weigh 110 pounds, so when first seeing or meeting me people automatically assume I have an eating disorder.
Why does everyone hae to be so freaking judgemental?
Answer:
Because that's how people work. They have to find something to judge you on. I have a friend who is about your height and weighs about the same as you, and also eats a ton. She eats more than anyone, but stays so skinny, and she also doesn't do any sports which make people bug her even more. People don't believe her when she says "I don't have an eating disorder, I don't go home and puke after eating a ton". They still call her anorexic. Whether it's out of jealousy, or pure obnoxiousness, they still do it. Humans in general are selfish and only think about themselves. They're judgemental and hateful. It's how some people work, and it's wrong.
Why do you have an eating disorder?
Human nature. honestly If you know you don't have a problem I would not be self consious of what others are saying they are most likely insecure about themselves and therfore want to have something to say about you. people will always judge others based on looks no matter what they look like
cuz ppl dont know the real u
society these days. sheesh
Because you ARE underweight, and none of that makes it better. If you're muscular, you should weigh more.
People can't help it, it's an unfortunate flaw of human nature. Everyone has to find a flaw in someone else or see something in someone else...
People do the same for me but I'm vice versa - I'm 5'7" (last I checked about 6 months ago) and I'm like, 170ish pounds.
Well i am the same hight as you and weigh 130 pounds. I am actually very low on the bmi scale. I have to try very hard to maintain my weight. People judge you because there is a very slim chance that some is just really skinny casue they are. That's the way the world is and there is nothing we can really do to fix it. So maybe you should try to gain weight to get to 120 and people will stop judging you. Though what really matters what you think about yourself and don't ever forget that.
because only u let them judge you, if you dress and act like u have a eating disorder...den u pulled them into letting them say that. When your friends or sumone says u look like ur anirexit or however u spell it. you should be like hell na i think ur and make jokes so they kno u are really not. people are judgemental because its life. once u think sumone is judgemental u have to look at yourself .and think you are prolly judgemental also in some certain way
Well, you don 't have an eating disorder. It 's just that like since you do sports , when you eat, your food gets digested faster %26%26 it turns into energy. That 's normal.
People have been subconsciously taught to judge on sight. 5'7 and 110lbs is not common in a child your age. What is common is a high metabolism and you have to feed your body if you are burning nutrients like that. have you had a physical lately? You should see the doctor annually for a complete physical. Also ask your parents what their body type was when they were your age. Also if you are a long distance runner then you will be slim anyway. Make sure you take the initiative to not judge on site, use this as a life lesson. People are superficial you know that if you watch T.V. or read Magazines so take this situation and use it for your good. They may be judging you on site now, but what about when you fill in? Then they will clamor to be your friend because of how you look so always remember that and make sure you don't do the same whether the person is large or small...
Why does eating make me feel sick?
Many foods make me feel sick. Especially fruits, and foods that have lables on them about claiming to be healthy. Yogurt makes me the sickest. Whenever I eat yogurt, I always feel like throwing up. Even drinking water has made me sick.
It's not just food that makes me feel sick, though. Amoxicillin also makes me feel extremely sick. My mother is violently allergic to penicillin, but I don't know if I am.
The only thing that has never made me sick is an ice cube. Cold things tend to make me feel better, and so do things that aren't liquid or squishy. Salt sometimes makes me feel better, too.
My doctors have always told me that I'm healthy, but I don't think they really care if I am or not, either. I mean, one day I told my doctor that I couldn't hold a pencil because my wrists hurt so badly, and he just said, "Oh. Well, that's probably not good." A different doctor from around here had roughly the same reaction. It's irritating. Anyway..!
So, yeah... Why do I get sick?
Answer:
Maybe you have something wrong with your throat that is triggering the gag reflex? I know it's hard to get it checked out -- you need a concerned doctor to get a good recommendation to a specialist, but it sounds like those are few and far between.
You might be better off with a holistic practioner. They often know what they are doing medically, but also can work with you mentally. It may be that part of your problem is in your head -- and it's disgusting that doctors dismiss that. "Oh, it's all in your head." Well, maybe, but it still hurts, doesn't it? Educate yourself so you know how to identify a complete quack, but be open to the experience.
Even the best doctor in the world won't know everything -- and it sounds like you have some doctors who are just putting in time and collecting their fees. You can do a lot for yourself by educating yourself about what's out there.
It's not just food that makes me feel sick, though. Amoxicillin also makes me feel extremely sick. My mother is violently allergic to penicillin, but I don't know if I am.
The only thing that has never made me sick is an ice cube. Cold things tend to make me feel better, and so do things that aren't liquid or squishy. Salt sometimes makes me feel better, too.
My doctors have always told me that I'm healthy, but I don't think they really care if I am or not, either. I mean, one day I told my doctor that I couldn't hold a pencil because my wrists hurt so badly, and he just said, "Oh. Well, that's probably not good." A different doctor from around here had roughly the same reaction. It's irritating. Anyway..!
So, yeah... Why do I get sick?
Answer:
Maybe you have something wrong with your throat that is triggering the gag reflex? I know it's hard to get it checked out -- you need a concerned doctor to get a good recommendation to a specialist, but it sounds like those are few and far between.
You might be better off with a holistic practioner. They often know what they are doing medically, but also can work with you mentally. It may be that part of your problem is in your head -- and it's disgusting that doctors dismiss that. "Oh, it's all in your head." Well, maybe, but it still hurts, doesn't it? Educate yourself so you know how to identify a complete quack, but be open to the experience.
Even the best doctor in the world won't know everything -- and it sounds like you have some doctors who are just putting in time and collecting their fees. You can do a lot for yourself by educating yourself about what's out there.
Subscribe to:
Posts (Atom)