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How the lungs work
Cut the bottom off a large bottle. Fit a cork to the neck with a Y tube in it. On every of the lower limbs of the Y tie a rubber balloon or a number of small bladder.
Tie a sheet of brown paper or sheet rubber round the bottom of the jar, with a piece of String knotted by a hole and sealed with wax. Pulling this string lowers the diaphragm and air enters the neck of the Y piece causing the balloons to dilate.
Pressing the diaphragm upwards has the opposite effect.
Housing: Housing is an important component of healthy environment. Probably you are aware that housing conditions for the vast majority of people in India are not up to the s
is there any human out of galaxy? Have any astronauts went out of galaxy?
Placement of First Aid Box : All first aid equipment should be placed close to the sites where accidents are likely to occur. The location of first aid boxes should be such that t
Explain Neutral fats Neutral fats are esters of fatty acids with glycerol and found abundantly in nature. These are insoluble in water but readily soluble in ether,
LASER stands for Light Amplification by Stimulated Emission of Radiation: It's a fairly long string of words. Well, don't let it stop you from reading further. What we wish t
Brain: The centre piece of the nervous system is the brain which IS possibly the most organised form of matter known. It is unlike any other organ of the body, as ~t alon
How is energy from food and energy from gasoline different?
Define the Pre Motor Areas of the Cerebrum The pre motor areas too lie in the frontal lobe immediately anterior to the motor area as highlighted in the Figure. The cells are th
A rock weighs 33.6 N on Planet X and 49 N on Earth. What is g on Planet X?
Genital and Reproductive Function: J.Y. is a 43-year-old woman who has detected a lump in the upper outer quadrant of her left breast while performing her monthly self-breast exam
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