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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.
Nuclear Reactor: Nuclear fission can be maintaned as a controlled cjiain reaction in a nuclear reactor to produce energy. Fermi had found from experiment that slower moving
water at 20 degree cellsuis is flowing a rate of 20 L/minute through a 5 cm is internal diameter pipe. the viscosity of water at this temperatures is 0.98c cP. calculate the reynol
#question.I AM TRAYING TO DO A SCIENCE PROJECT FOR 7TH GRADE BUT I DONT KNOW WHAT SHOULD I DO ?
Which describes granite and basalt?
Explain Bile pigments - Constituents of Bile The red blood cells are broken down when they are old (life span of red blood cell is 120 days). They are taken up by the reticuloe
Which type of rock is critical for the formation of geysers? Liquid rock is required for geysers to form in the form of what is known as magma - which is the geological name fo
Procuring and storing animal materials (i) You can begin by asking for a clarification or reaching a common understanding regarding the oft-used terminology, for instance, anim
how to study
Microbes: You should know that invisible microbes are present everywhere, because they can surviveeven under very inhospitable conditions. They are all around us, in the air
greatest refraction of light is caused through
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