How to Become A Scientist

A scientist play big role in development of human life.  All we know and we use now is result of drudge works of scientist in the past. Therefore, to become a scientist, you must work hard and never give up until you reach your destination. A Scientist begins an investigation by observing an object or an activity. Observation typically involves one or more of the human senses –hearing, sight, smell, taste, and touch. Scientists typically use tool to aid in their observation. For example, a...
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Scary Video, Natives thought that is a sea monster

in video above, some creatures eat the fish carcasses wildly in a few second. The remain is just a fish bone. It makes many natives scary. After reaserch, the reasercher have proved that creatures are not dangerous for human. evidently, that creatures is cirolana (latin name). In the reaserch, about 500 cirolanas are placed in an aquarium. then, someone sink his finger to that place. but, the result is cirolanas become scared, even they feigned death. Cirolanas have a big role in food chain. They...
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Green Jobs Mean Green Money and a Green Earth

The new buzzword in the economy is green jobs.  The Obama administration envisions green collar jobs to boost the lagging economy.  The industrial leaders of the renewable energy sector promote green collar jobs as the way towards increasing public awareness of the need for environmental protection while increasing the prospects for their bottom line. The environmentalists want green collar jobs to be more pervasive for the sake of Mother Earth. Green MoneyThe better news for the...
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Survey finds men lie more than women

We are all bound to lie every once in a while, but new UK research has found that men lie more than women and are less likely to suffer a guilty conscience. The survey, commissioned by London's Science MuseumThe average male tells 1,092 lies every year and is less likely to suffer a guilty conscience for lying than the typical woman. By contrast, the average woman will come out with 728 untruths per year. And while men said their lies were most likely to relate to their drinking habits, the...
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Chloroplasts, The main secret of Plant's power

Chloroplasts are one of the cellular organelles, and the site of photosynthesis, a basic metabolism in plants. the structure of chloroplasts is shown in image above. Chloroplasts posses an inner system of membranes, called thylakoids, which are surrounded by fluid compartments called stroma. Thylakoids contain chlorophyll where the light reaction occurs. In stroma, carbon reduction is carried out through the dark reaction. In the light reaction, ATP, chemical energy, and NADPH, reduction power,...
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Eating fast food frequently would make people lose patience

Researchers from University of Toronto recruited 57 college students for volunteers, they were asked to see six common signs of fast food restaurants on the screen such as the McDonald's, Burger King, KFC, Subway, Taco Bell and Wendy. Researchers believed that even the volunteer did not need to instantly identify the names of these restaurants, but they should be affected subconsciously. The researchers found that after watching the signs, the speed of reading the articles significantly faster....
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Wind Power Potential Higher Than Current Estimates

Global wind energy potential is considerably above previous estimates by both wind industry groups and government departments, as outlined by a Harvard University study published a week ago inside the Proceedings on the National Academy of Sciences of the usa. The newest research surfaced just weeks after T. Boone Pickens, citing rising financing costs, scaled back his plans to the world's largest wind farm in west Texas. Using data from many meteorological stations, the Harvard team estimated...
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Animal Development

A fertilized egg undergoes cleavage to become multicellular, during which differentiation takes place among cells and various tissues and organs are formed. This process is called embryonic development. Concerning the mechanism of embryonic development, there were once two different ideas. One is called preformation, according to which the egg or sperm contains a completely formed miniature embryo that simply grows during its development. Another is called epigenesis, in which the form of the...
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10 effective ways to prevent Cervical Cancer

Cervical cancer is one of the four deadliest cancer types in the world. if lung cancer frequently infects man, whereas breast cancer and womb neck (serviks) most often attacks women. Cervical cancer is a cancer that occurs in the uterine cervix, an area in the female reproductive organ which is the entrance to the uterus located between the womb (uterus) with a hole in intercourse (vaginal). there are 10 effective ways to prevent cervical cancer, such as: HPV VaccinationThis way is absolutely effective,...
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The process of plant evolution

It is said that plants appeared on the earth during the time between the Ordovician period and the Silurian period of the Paleozoic era, some four hundred million years ago. The first plants that appeared on land may have been Pteridopytes or Bryophytes, and it is Pteridopytes that had become large-sized on land and markedly expanded their habitat by Carboniferous period of the Paleozoic era. Although unlike plants living in water, Pteridopytes cannot absorb water and nutrients from the whole plant...
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The fights of hermit crabs for snail shells

Coastal hermit crabs live in snail shells. As snail shells are not part of the hermit crab's body, they do not grow following the growth of the hermit crab inside. Hermit crabs should obtain appropriate-size shells as they grow. The optimal shell size decreases as the size of the hermit crab decreases. For example, the optimal-size shell for a crab of 5 mm in carapace length is 14 mm in shell width. Shells deviating from this size are unsuitable for this crab. Larger shells are heavy and difficult...
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Characteristic response of plant when submerged

Plants show characteristic responses to submergence. When plants and soil are submerged by water, the air in the gaseous space in the soil is quickly replaced with water. Plant roots generally obtain oxygen from the gaseous space in the soil. Thus, when this space is filled with water, plant roots rapidly fall into oxygen deficiency, leading to the retardation of the absorption of water and nutrients, which then adversely affects the growth and development of the aboveground parts. Characteristic...
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Muscle contraction in vertebrates

Movements of vertebrates are caused by contraction of skeletal muscles that are attached to the bone by bands of fibrous connective tissue called tendons. A skeletal muscle microscopically shows a specific pattern, and thus, is also called striated muscle. A skeletal muscle is a bundle of long fibers running the length of the muscle. Each fiber is a single cell, and is itself a bundle of smaller myofibrils arranged longitudinally. The myofibrils, in turn, are composed of two kinds of filaments...
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Factors that inhibit learning

There are many factors that inhibit learning they are: 1. When students are given sufficient time but can not use that time well then he will have problems in learning. 2. Classical teaching is done less attention to individual differences of students, because of the large number of people (students) are obliged to follow the lessons in this beloved country of Indonesia. In Indonesia, this is not possible be fulfilled because of limited facilities required and other limitations. ...
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Definition of learning

Learning is a process within the human personality, the changes are placed in the form of increased quality and quantity. Definition of learning according to Hilhard Bower in the book Theories of Learning (1975) Learning associated with changes in a person's behavior to something situation caused by repeated experiences in that situation, where changes in behavior can not be explained or basic innate response tendencies, maturation. According to Gagne in the book The Condition of Learning...
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