Some facts about Blood

Here we are going to discuss about the blood circulation. The unpurified blood is sent from the right side of the heart to the lungs, and then it is purified and again sends back to the left chamber of the heart. From there only, the purified blood will sent to all other parts of our body through the Arteries and then it comes back as unpurified blood to the right chamber of the heart through Vein.

The blood from the artery is changed to vein through miniscule capillaries. The cardial valves in the chambers of the heart perform the unidirectional circulation of blood by opening the valves unidirectionally.

Nikolas Copernicus the Astronomer

Copernicus (February 14, 1473 – May 24, 1543) was not only a great astronomer, but also a painter and philosopher. Mankind should ever be grateful to the Polish astronomer Nikolas Copernicus, for giving the right answer to the riddle of the universe.

Copernicus and Columbus were contemporaries. While Columbus was discovering a new continent, Copernicus propounded a new theory of the universe.

Before Copernicus, the prevalent astronomical belief was that the earth was the centre of the universes and the sun and other stars and planets revolved round the earth.

After 30 years of study and without the help of even a telescope — the telescope was invented much later — Copernicus put forward his theory that the earth moved round the sun, like a top spinning on its own axis and along an oval orbit and the moon moved around the earth. Other planets like Jupiter, Saturn, Mars, Venus, Mercury and so on moved around the sun, which was the centre of our universe.

Some foolish contemporaries of Copernicus ridiculed his findings and sent clowns to villages to tell the people of the immovable earth and the moving sun — “things which any fool can see” — and laugh at Copernicus, “the crazy priest” who said that the earth moved and the sun stood still. Copernicus was not angry with his critics. He said: “Let them be. The movement of the heavenly bodies will be influended not in the least either by ridicule or by the respect of these foolish men.”

Copernicus, the great astronomer, had also tried his hand at painting, philosophy and medicine. He was a repository of kindness and wisdom

Take care of trees…they take care of you!

The number of cities across the world with five million or more inhabitants is projected to rise from 46 in 2003, to 61 in 2015. Obviously, a developing country like India with a population of approximately 1.13 billion is not far behind. Never before in time has our urban environment been in such a precarious state, with such immense pressure on its resources – air, water and soil. And it is certainly time we realized the vital role well grown, healthy trees play in restoring a beneficial balance. In fact, a tree is probably the only investment a city makes that increases over time!

Unfortunately, towns and cities have not been designed by the laws of nature, but by the law of human supply and demand. Trees are included as amenities and are established in an artificial habitat that usually falls short of supplying basic needs. In this setting, trees are further stressed by pollutants and by human-inflicted injuries.

It is necessary to give trees in cities special care, not only for their survival and wellbeing but also to protect people and property from the hazards trees can become in a hostile environment.

The urban underground habitat is particularly ill-suited for healthy tree growth. The soil is typically a mixture of subsoil, and construction waste, compacted to a density that eliminates 80 to 90 per cent of the soil porosity through which air and water must move. Drainage is frequently so poor that routine irrigation leads to a waterlogged environment in which the roots are unable to grow. The nutrient level may be too low for normal tree growth or too high in sodium or trace chemicals, making them toxic to trees.

Saplings are planted close to concrete surfaces and are routinely installed near established trees. Compacted soil conditions, and too little or no watering encourage tree-root growth close to the surface, forcing the roots to grow near buildings and sidewalks. As a result, when the man-made structure becomes damaged, the roots are cut back or the tree is removed.

The urban habitat can be just as harsh. Overhead utility lines, buildings, and traffic-ways often occupy the space into which a tree’s branches normally grow. The consequent clearance pruning is often performed with little regard for the tree’s structure or health.

Trees next to buildings can be shaded most of the day or subjected to a lot of sun! Trees that cannot develop a normal root system may fall down, or their roots may strangle one another.

Volcanoes In other planets

Volcanic features aren’t exclusive to our planet. Our satellite, the moon, exhibits volcanic features, as does Io, a Jovian satellite (one of the moons of the planet Jupiter). So do other planets in our solar system, most notably Mars and Venus.

The volcanic features on Mars are similar in shape to those on Earth. Scientists suspect that they were probably formed by similar processes, and that volcanism has been significant throughout Martian history. However, it is interesting to note that they also feel there is no geological evidence yet of recent plate tectonic motion such as that on Earth.

Scientists have identified more than 1700 volcanic centres on Venus. The craters vary greatly in size, shape, and eruptive activity.

Undoubtedly the most spectacularly volcanic planetary body is Io, the moon closest to the giant planet Jupiter. In 1979, images from the Voyager 1 spacecraft arrived on Earth. They showed active volcanic plumes rising up to 300 km above this tiny moon’s surface. The surface is pockmarked with volcanic centres, and at least around 70 of these are active.One of the foremost researchers in the field of planetary geology was Dr. Eugene Shoemaker. He helped map the surface of the moon. You can't beat a good euphonious

Tiger alert

A few years ago, the Sariska tiger reserve was faced with a great tragedy when the entire population of tigers was wiped out. This year, in a groundbreaking effort to preserve the species, an endangered Bengal tiger was relocated to the Sariska tiger reserve. The young male tiger was airlifted from the Ranthambore tiger reserve by the Government of Rajasthan and the Central Government with the help of WWF for Nature. The tiger is in good health and appears to be adapting to his new surroundings. More tigers are expected to be introduced in the near future.

“Tiger numbers are dwindling at an alarming rate and it is imperative we take action now to keep them from disappearing altogether,” said Sybille Klenzendorf, director of WWF’s Species Conservation Programme. There may be as few as 1,400 wild tigers remaining in India and fewer than 4,000 wild tigers left in the world.

Populations are fast declining due to poaching — killing for their skin and parts — and habitat loss. This relocation is the first of its kind in India and a testimony to the government’s intent to preserve the iconic species.

Ocean of garbage

September 20 was Coastal Clean-up Day. But, is one day enough to clean up our coastlines? Over 80 per cent of plastic that is found in the seas has been washed out from land. a visit to the coast will give you an idea of the scale of the crisis

A study conducted in the Netherlands found that 95 per cent of sea birds in the North Sea had plastic inside their stomachs; one bird in Belgium had 1600 pieces of plastic in its stomach. Nearly 600,000 tons of discarded plastic is believed to have settled at the bottom of the North Sea.

There is so much plastic waste that is floating on our seas that researchers, scientists and regular ocean travelers refer to these as continents of plastic; a single plastic continent could weigh over three million tons.

One only needs to do simple ‘garbage in oceans’ search on the Internet to actually find out the scale of the problem that we have created. Tens of thousands of pages of shocking information and pictures about the state of the oceans that cover 70 percent of this planet. It is important also to bear in mind that this is a problem that is essentially created by humans. Over 80 per cent of the plastic that is found in the seas has been washed out from land – from our landfills, from our garbage cans – the plastic that we use and carelessly throw away day after day.

All of us may not have the opportunity to see what is happening in the far away oceans, a visit to any of our coast lines that is piled up with waste of all kinds gives us a good idea of the scale of this crisis.

Coastal Clean up day was on September 20, and was one effort at dealing with the problem when a large number of organizations and volunteers all over the world came together to clean up the coasts. The magnitude is such, that efforts like this can only make a small dent. A much better and long term solution, experts point out, is to adopt the 3R principle – Reduce, Reuse, and Recycle. That might be the only way out, because how much ever we clean up, the waste is not going away if we continue to generate it at the pace and quantities that we are presently doing.

Importance of Lake

There was a lake in pallikaranai. This is the largest natural rainwater harvesting system in the region which is linked to the Bay of Bengal through a network of backwaters and outlets. This lake serves two important function — flood control in the hinterland areas and ground water recharge.

We also came to know that this lake was once home to 45 species of fishes, 10 species of frogs, 21 species of reptiles, 110 species of birds and 10 species of mammals.

While testing the samples of soil, air and water, revealed that a total of nine dangerous chemicals in the ambient air exceeded permissible limits and they are known to cause dangerous diseases.
Then the village community was called out and a team of students had put up a street play on pollution telling them that the future of this lake is in their hands.

The play highlighted the uses of the lake, causes and effects of pollution to the environment and the preventive measures to be taken to put an end to it.

Manage your time

Every day there are many things you have to do. You have to get ready for school, eat breakfast, and catch the bus. Then when you come home, there is home work and tuition and little tasks mother might want you to do. You may like playing with your friends, watching TV or playing computer games better than doing homework. You may have dance classes or tuition. You may have a hobby or like playing with your brother or sister or pet. Can you do all these things as and when you want to? No, you cannot.

Everything has to have a special time, if your life is to go smoothly. If you play with your pet and sit up late for your homework, you may do it very untidily, or fall asleep in the middle and not do it at all. If you don’t get your diary signed at night when mother also has time, you may forget to ask her in the morning. So what do you do to fit everything in?

You need to make the best use of your time. To do this, you need to think about what is important and what is not. What needs to be done everyday and what can be put off till the week end? When you get home from school, give yourself some time to relax and have something to eat so that you are not tired. Then have a bath and plan your evening till dinner and bed time.
A good idea would be to draw a large timetable and divide it into three. Under each section write down what you have to do and when you should do it. There are certain things that need to be done at the right time. Your school bag is best packed at night before you go to sleep. If you leave it too late, you will rush around and forget something. The same applies to your clothes and shoes.

So think of what you would put under each column. When you plan your activities and keep to routine and good timing, you will find that you will also have time to talk to your parents and family members and perhaps even time to read your favorite story book. . You will feel happy when you go to bed that everything is done well.

Information about Disk Drill

This is a sponsored post written by me on behalf of Disk Drill for Windows, Disk Drill, Disk Drill data recovery, etc. All opinions are 100% mine.

If you worried or frustrated of deleting files by mistake or looking to retrieve important documents from a lost partition, then make sure that you check out best data recovery software out there in the market. Recently I came across this interesting software, which would be relief for most people in the country, who were worried of losing files from a lost partition or accidental deletion, known as Disk Drill. The Disk Drill is one of the stand-alone application out there in the market that can scan and recover data from virtually any storage device - including internal hard drives, external hard drives, cameras, iPods, USB flash drives, Kindles, and memory cards. In many cases, Disk Drill can even read your device even if it is failing, unreadable, or has lost a partition. People could just give Disk Disk Drill for Windows a try, as the software is FREE and would help in recovering sensitive data and important files from the lost partition.

Tree of Knowledge

Where do you go when you need to find information on a particular subject? Today, the answer, most often, is the Internet. With computers taking over the knowledge arena, reading has been relegated to the back seat.

But a new magazine, which calls itself “the encyclopedia for every school child”, is indeed attractive enough to warrant a peek between its covers. Tree of Knowledge, a fortnightly magazine, is split into five sections: The Living World covers biology; Visiting the Past is obviously history; Science Explained focuses on physics and chemistry, Our Planet combines geography with a bit of science; and The Human Factor takes you through the arts and culture.

Going by the first issue, which hit the stands on September 10, this is one magazine that will be more popular with parents; what the kids think remains to be seen. The production is excellent with fabulous photographs, fact boxes with extra information, maps and illustrations. The section on the tsunami under Our Planet tells you all you want to know about these giant waves by focusing on the devastating one unleashed by the 2004 earthquake off Sumatra. The Science Explained section takes you into the astronaut’s suit and uses pictures and more pictures to give you all the info you need on why people going into space need those special suits.

The only grouse is that the text could be more child-friendly. While the general appearance of the magazine seems to target the 7-12 age groups, the text seems to be addressing an older group. Also a couple of typos (Gandhiji’s wife’s name is spelled Katurba) could have been avoided.

Mysteries of the sea

It was long believed that corals need warm, well-lit tropical waters to live but recently some white corals have been discovered in cold deep waters where there is also no light. Some of these temperate corals are 30 feet tall. They seem as abundant as the tropical corals but they have not been explored as much.

Tropical coral reefs are found around the Equator about 30° north and south. They are the best known among the corals. They need clear water, warmth and light and are found near the coast line.

Although the chief architects of the huge reefs are the stony corals, not all corals are hard. Some corals are known as soft corals and these don’t have the rigid outer skeleton we associate with hard corals.

There are different types of coral reefs — the Fringing reef, the Barrier reef and the Atoll. Fringing reefs are found off the shores of islands and coasts. A narrow stretch of water separates the Barrier reef from the shore. Probably the best known Barrier reef is The Great Barrier Reef off the coast of Australia. It is 1,269 miles long and from 10 to 90 miles wide. An Atoll is an isolated ring of coral. It is formed when an underwater volcano erupts and the lava rises above the surface of the sea.

Thousands of plants, fishes and invertebrates such as sponges, sea cucumbers, sea squirts and clams live in the tropical coral reefs. The Great Barrier Reef contains some 3000 species of animals.

The reef provides a home to some animals and a place to hide for others. It also serves as a dining table for predators such as sharks which come to forage on animals congregating in coral reefs.

There are, of course, animals that eat the reef itself. Some fish that are found in the open sea use the reef as a place to gather and breed. A few use the reef as a type of spa!
The Wrasse is a fish that gets its food while cleaning other sea creatures. Wrasses eat the parasites and debris on the bodies of other creatures.

Unfortunately, as a result of changing climate, increased pollution and other factors, the world’s coral reefs are now threatened habitats.

Yamaha Info

The Yamaha bike is one of fastest bike. One of the products of Yamaha is RX-100. This is having 2 stroke and 4 gears. Because of having 2 strokes there will be a sudden pick up in that. The great advantage of that bike is sudden pick up and great speed. The maximum speed we can attain is up to 130 km/hr in the normal Indian roads. The pick up is from 0-60 in just 6 secs  That’s why most of youngsters love Yamaha RX-100. For the pick up and speed itself it touched the heart of lot of people’s including the aged peoples. Because it'll be suitable for all type of persons.

The main drawback in that is mileage. It just gives 35-40 kms/ltr. But the Yamaha lovers won't care about mileage. Another name of that is HILL RIDER. It can easily take of in the hills itself normally and it doesn't slow down. It is having power to take 3 persons in the hills itself. By the name of RX-100, Yamaha has become very popular among youngsters and it gives a fear to the aged persons. Let's we spread the name of Yamaha just for pick up and speed...

Atlanta Internet Access

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