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Walking Robots:
Sit back for a while and try to think of a few advantages our legs have over wheels in moying around. Wheels can't climb stairs. They can't also step over obstacles or gathrough narrow spaces or move on soft or uneven ground. Humans and animals can choose the foot-holds that offer the best support, specially in mountains. In fact, about half the earth's surface is such that it is very difficult for wheels to move on it. Creeping, climbing, balancing, walking and running are all possible for legged creatures.
Our legs can also bend at knees which makes adjustment easy. Therefore, a robot must be given legs so that it is able to move around easily. Making legged robots has proved to be a challenging job in roboiics. Although computers have been built into legged vehicles, the problem4 of balance, coordination and walking on rough ground have proved difficult to solve. Along with robot movement, building in natural flexiblity, manual, touch and hearing ability in robots are active areas of research in robotics these days.
Great developments have taken place in materials which are called polymers, and consist.of long chains of small molecules joined end to end. Plasticsare one k~nd of polymers used extensively in machines and devices. and so commonly even in rural areas-in the form of cups, buckets, ropes, bags, rain-coats and other clothing etc. Rubbers are alsa$olyrners. and so are ceramics from which china-ware and all kinds of insulators are made. There has been great development in this field. Ceramic car engines are being developed which mill be much lighter than the present cast steel and will be able to operate at a higher inner temperature and pressure. Engine weight may be reduced to a quarter of what it is today, anti power may be increased four times. Ceramic magnets are now in conimon use: the ratio of the magnet's force to its lueight has ken increased more than a hundred times.
Granulocyte macrophage colony stimulating factor (GM-CSF): Stem cells obtained from the bone marrow are capable of giving rise to countable colonies of daughter cells in splee
Explain the Urinary Bladder The urinary bladder is a sac, which acts as a reservoir for urine. You would realize that the size and position of the urinary bladder varies depend
To perform the specific biological func. for the normal maintenance of optium growthand health.
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Define Growth Hormone (GH) It is a protein containing 19lamino acids in a single chain. It is secreted by somatotrophs throughout life even though growth stops at adolescence.
Archaeological Evidence: The study of human antiquities, especially of prehistoric period is known as archaeology. The biological and cultural evolution of man proceeded side
What is genetics>
Explain the factors that influence Glomerular Filtration Rate These include: 1) Renal blood flow: A large proportion of blood flows into the glomerulus. The greater the rate
what does mean of BR and RM value of ghee. why one should measure these parameters.
equilibrium, Physics what is the effect of torque and equilibrium on taps, doors,handle bars and bicycles??
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