Life and Science
Is Science important? The answer lies right in front of our eyes. Think about a world without technology. No computers, no cars. No vaccines or cures for diseases. Life would be joyless and extremely hard. It was not long ago that this was the case. How ever, now with science on our side it's a whole new story. 

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Latest Articles
LG KM710 Music Phone Launched

lg-km710-mobile-phone.jpg LG has today launched its new Music Phone, the LG KM710 which is triband GSM network ready Slide-up style music phone featuring a large 2.0-inch 262K colors color display, 3.15 MP digital camera, powerful MP3 and media player, FM Radio with recording facility, memory expansion card slot and 3.5 mm audio out port.The new LG KM710 Slide mobile phone is a triband GSM 900 / GSM 1800 / GSM 1900 MHz handset which featrues 2.0-inch, 262,144 colors, 240 x 320 pixels resolution QVGA display in slide-up style design.

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Electrokinetics : Overview, History and Theory

Electrokinetics is the study of the motion of particles and chemical transformation that result from or produce an electric potential difference. (An electric potential difference can be thought of as a measure of the increase or decrease in the work that is required to move a particle between two points in space when that particle possesses a unit of electric charge). An electric potential difference always exist between two points if these two points have different amount of electric charge. Charges? There are two types of charges: negative and positive charges. The charge of the molecule corresponds to the difference between the number of electrons the chemical species possesses and the number it possesses when it is not charged. An increase in the number of electrons corresponds to a negative charge, and a decrease in the number of electrons corresponds to a positive charge. All electrokinetic phenomena take place as a result of the fact that particles with like charges repel one another and those with unlike charges are attracted to one another.

 

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Causes of Lunar Eclipses

56721-35.jpg Moon, Earth’s only natural satellite, is a cold, rocky mass, about 3476 kilometers in diameter. It orbits the Earth every 29½ days, with its orbit tilted at 5 degrees from the plane of the Earth. During its revolution, it passes above or below the Earth’s shadow. But its only two times in one year that the Sun, Moon and the Earth stand lined up. Due to their relative positions, a part of the Earth’s shadow falls on the Moon and a lunar eclipse is caused!
Moon, as we know, has no light of its own, and illuminates itself by stealing sunlight. The period of 29.5 days between two consecutive new Moons is known as lunation. On the night of a new Moon, the illuminated side of the Moon points away from the Earth and we see ‘no Moon’ in the sky! When the Moon is full, it is directly opposite to the Sun. The night of a lunar eclipse is a Full Moon night.

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Diabetic Food and Nutrition

 Diabetes is a major health concern that has gripped a majority of population. Living with diabetes is a task that can be achieved with the right balance of medicines, and a rigorous diet and exercise plan that helps people combat the risks of diabetes. People who have diabetes should understand the fact that a diabetic diet is necessarily a diet that allows you to consume all sorts of healthy food in moderation

Since maintaining normal blood sugar level is of utmost importance while living with diabetes, food and nutrition are of prime importance while living with diabetes or coping with diabetes. While coping with diabetes not only should the food intake be nutritious and healthy, but also proper meal times and schedules should be followed rigorously. A well-planned diabetic diet is the one that keeps the calories and fats away and provides essential nutrients in the right quantity at the right time. Make note that eating at the right time can make all the difference to the effects of the diet.


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Are They Really Evil?

The Black cat is just what the name is…a black cat, a cat who has black fur. It does not have to be any particular breed, it can be purebred or it can be mixed. The black color is a help to the cat that hunts at night but if we take a look into history then we will see that cats that have all black fur were considered many times to be symbols of evil (there are a few cultures where they were omens of good luck). Strangely enough, it seems that these superstitions have never really gone away even in the modern society that we live in; it is a fact that there is a lower adoption rate for black cats in American shelters then those that have other colors. That is strange.

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Back in the day, black cats were strongly associated with evil and witchcraft. If we take a look at Hebrew and Babylonian folklore, we can see that black cats were symbolic of serpents coiled on a hearth; in ancient Egypt the cat was worshiped and when the family cat died the whole family went into mourning and the cat’s body got mummified. The Romans came along and they saw the cat much in the same way, it was them that introduced the cat to Europe. Because of the all the worshipping going on, the cat at that time was considered a sign of good luck especially if a black one crossed your path; it was the church that started to ruin things for the black cat, the Church started to associate them with witchcraft, black cats and sometimes even white cats had started to get a bad name.


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Does Gravity exist everywhere?

The famous French astronomer Arago wrote, "Were we not to see falling bodies every minute, we would count it a most surprising thing. By force of habit we regard gravity, the attraction the earth has for everything on it, natural and common. But when we are told that objects also attract each other, we can hardly believe it, since, generally, we never notice it.
Why is it, indeed, that the law of gravitation does not manifest itself anyways? Why do we never see tables, watermelons, or people attracting one another? Because for small objects the force of attraction is exceedingly small. Here is a graphic instance. Two persons at a distance of two meters apart do pull at each other. But the force exerted is minute, being under 0.01 mg for people of average weight. In other words, two persons pull at each other with the same force that a 0.00001-gram weight exerts on the scale pan. Only the extremely sensitive type of scales that scientists use in their laboratories will be able to register such a tiny weight. It goes without saying that this force will never affect us, being completely offset by the friction between our soles and the floor. To push a person standing on a wooden floor- where the friction between the soles and the floor is equivalent to 30 percent of his weight- you must exert a force of at least 20 Kg. And to compare that with the negligible pull of the hundredth of a milligram is simply ridiculous. A milligram is a thousandth of a gram; a gram is a thousandth of a kilogram, consequently 0.01 mg is exactly half of a thousand millionth of a force needed to pull a person away. Small wonder that in ordinary circumstances we never notice the mutual attraction that exists between objects.


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Comets: Shrouded by mystery

3242-22med.jpg  Human kind has always looked to the heavens in awe and wonder, and sometimes in fear. Perhaps no other astronomical phenomenon except a total solar eclipse has historically evoked as much fear as comets. When the specter of fear is removed, however, they emerge as strikingly beautiful objects in the sky. It was once believed that if earth passed through a tail of a comet, its inhabitants would die; this theory has been discredited. Comets are messengers from a time long past. Most are chunks of dirty ice, locked away in the Oort cloud for billions of years.
Comets are familiar to nearly everyone as striking star like objects with long tails stretching across a wide band of the sky. The most famous comet, Halley’s comet makes its return to the skies every seventy-five years. The word "comet" is derived from a Greek word meaning "long haired" Comets were greatly feared before the twentieth century as bad omens. Since then, they have been identified and catalogued as objects that come from deep space. Most of them occupy orbits that carry them far outside the solar system. Many comets make only a single approach to the sun and never return again, while others exist in stable, but highly elliptical orbits that allow them to return after an extended period of time, such as the Halley’s comet.
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The comet cometh!

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 If you gaze at the sky at sunrise or sunset - very unlikely though with our hectic lifestyles - and see a sort of bright & fuzzy object, congratulations, you’ve probably sighted a comet. Now do a quick check with your local observatory to see if a comet was being expected, and if not, then congratulations once again, you just might be able to name it.

But it is not often that you can see comets with an unaided eye. The ones that can be seen with the naked eye are called, what else, but, naked-eye comets. A comet visible to the naked eye appears, on an average, about once in five years. But even then it is helpful to have a pair of binoculars or a telescope.


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Childhood Obesity Facts

oese.jpgChildhood obesity is a serious problem. It can give rise to numerous physical as well as psychological problems in children. Of course, increase in weight is normal as the child grows up. But if it is more than healthy body weight, then your child can be considered as obese. Obesity in children can be a cause of various diseases such as elevated levels of cholesterol, high blood pressure and diabetes. This article will help you to understand the causes and the treatment options for obesity in children. 
 
Causes of Childhood Obesity

According to childhood obesity facts, obesity in children is due to multiple causes including imbalance between calories gained from food and calories expended in physical activity and basal metabolic rate. Childhood obesity is most frequently found to be resulting from interaction of physiological, nutritional, familial and psychological factors. Some known causes of obesity in children are as follows:

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