Fact file

ü The first seismograph was made in china .The earthquake made the balls from the pot fall into the mouths of the frogs below.

ü The moon always shows just one side of it to the earth. The moon pulls does. So we would find it very difficult to walk on moon. Unless we are weighed down, we would float.

ü Evaporating sea water is the oldest method of obtaining salt. Sun’s heat evaporates the water & salt is left behind. The salt thus obtained is further purified to make it edible.

ü In a microwave oven, water particles in the food are made to move very fast .heat produced due to the friction between these water particles cooks the food.

ü Dolphins have the best sense of hearing among animals. Their hearing is 14 times sharper than in human beings.

ü Snakes use their tongue to smell things.

ü Talk, a mineral found in talcum powder, is the softest mineral.

ü Shark teeth are actually modified scales.

ü The flying fish is anabas. It is able to leap through the air for long distances. It flies with the help of two wing-like fins attached to either side of its body

ü Insects breathe with the help of a series of tiny holes along the side of their bodies. These holes are called spiracles.

Durga Devi Sharma

 B.sc 2nd year

CHOLERA

History

The word cholera is from Greek word ‘kholera’. The disease first spread by trade routes (land & sea) to Russia in 1817, then to Western Europe, & from Europe to North America.

In Russia alone, between 1847 & 1851, more than one million people perished of the disease. It killed 150,000 Americans during the second pandemic between 1900 & 1920, perhaps eight million people died of cholera in India.

John Snow, in 1854, was the first to identify the importance of contaminated water in its cause. Cholera is now no longer considered a pressing health threat in Europe & North America due to filtering & chlorination of water supplies, but still heavily affects populations in developing countries. Last two year many people die of cholera in western region of Nepal.

Introduction

Cholera is an acute intestinal infection caused by ingestion of food or water contaminated with the bacterium Vibro Cholerae. Most persons infected with V. cholera do not become ill, although the bacterium is present in their feces for 7-14 days. Less than 20% of ill person develop typical cholera with signs of moderate or severe dehydration.

WIDE ANGLE: Is time travel possible?

 Time as a Flowing River

"Time flows like a river and it seems as if each of us is carried relentlessly along by time's current. But time is like a river in another way. It flows at different speeds in different places and that is the key to traveling into the future," Hawking writes.

                  

Albert Einstein first proposed this idea 100 years ago that there should be places where time slows down, and others where time speeds up, notes Hawking. "He was absolutely right."

The proof, says Hawking, lies in the Global Positioning System satellite network, which in addition to helping us navigate on Earth, reveals that time runs faster in space.

"Inside each spacecraft is a very precise clock. But despite being so accurate, they all gain around a third of a billionth of a second every day. The system has to correct for the drift, otherwise that tiny difference would upset the whole system, causing every GPS device on Earth to go out by about six miles a day," Hawking writes. The clocks aren't faulty -- it's the pull of Earth that's to blame.

Declining craze towards B.Sc

Education and knowledge is the third eye of people, today these are just become the path to earn money for them. A child studying in one or two grade answers question of his/her teacher that s/he wants to be a doctor in future. It’s so surprising to all of us that the child answered it without knowing any clues about being a doctor. It's just an example but nowadays the trend is that people neglect what sort of job one has done. They superficially judge the quality of people who dress up well and ride expensive car. Moreover children nowadays become like TV or machines that run upon the remote control of their parent's wish. Parents ignore what their children want instead they themselves choose their favorite faculty & their children are compelled to study. There is a proverb that if there is a son he should be engineer and if there is a daughter she should be doctor. This also proves that Nepalese children are still not able to recognize their inner soul and have been moving in the path of their parents.

Name of Nokia

Nokia is a name of city situated nearby the capital city of Finland in Helsinki which is 15 km far from Temper at the bank of Nokianvirta river. The word ‘ Nokia’ has been derived from name of the Nokianvirta river. If we turn over the pages of history at 1865 A.D. Predek Edestema had established it. In the beginning it was named as Pahap Mil. Then 1871 A.D it was named as nokia & till 1990 it works in different scopes & developed many branches.

According to the data of March  2011, 176,384 people have been working in the office of Nokia in 183 countries. In the world Nokia sells its products in 196 countries. In 16 countrires it conducts  research  & developments programs. Nokia established its research

THE WORLD THAT BEGAINS IN MY MIND

"Cheer up!" my mind says with joy sometimes. I too well on the matter what a special have the god given to us "the life”. It’s really pleasure to hear that we are alive. We are the living beings we can speak and express are ideas, feelings; we can hear the beautiful sound of nature. We can see the beautiful flowers growing in deep mines of truth. We have the power to win the creativeness. Life, simplicity and joys salute the nature and the god for their kindness to us .science and technology has sky rocketed and is still trying to go further. The achievement of this modern world is the result of our great creativity .this achievement is not the true invention in real sense unless we are able to construct the new world with new view of development with co-operation brotherhood and peace not with barbarism

Brain Teasers

i.              Four prisoners got a golden chance to escape from prison if they answer correct but if they answer wrong then they have to die instantly when question asked by jailer. Jailer took them to the desert & buried their whole body inside the soil except for their head. They were arranged in way as shown in the figure below. The wall placed in between them can’t see the other side. Then he put white & black hats on their heads randomly. He said, “there are four hats; two black & two white on your head either it can be white or black hat on your head. Now any one of you can answer which hat you are wearing within 30 second. The condition is none can move their heads & none can produce sound. If you do so or if you don’t answer in time then you’d left alone & remain in this way forever.” Their life & death are determined after 30 second but fortunately one of the prisoner answers correctly in time.

Now the question is, who answer the question & what is the answer?

Answer: 3^rd prisoner answer he has white hat because he saw a black hat in front of him & thought that if his hat was black then the other prisoner behind him i.e 4^th prisoner must immediately answer that hat worn by 4^th prisoner is white since he already saw two black hats & must guess remaining hats were white. Instead the 4^th prisoner remained silent because he became confused seeing two different colored hats so 2^nd prisoner wearing black hat & 3^rd prisoner must be wearing white ones.

Sailesh Bataju

B.Sc 2^nd year