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Wednesday, 31 August 2016

Why are Pebbles found on Beach?

Pebbles are a common sight at many beaches but have you ever wondered why these little round and spherical shaped stones are found on the coastline? Well, there are a lot of factors that contribute to their occurrence in the coastal areas. These include the geology, weather and the shape of the coastline. These are basically the reason why you find sand on certain beaches and pebbles on the others. Fine particles of sand are seen on the beaches where there is low energy environment while those with higher energy encompass large particles.

Pebbles seen on the beach are of different type. Some of these are volcanic, some non-volcanic while some are granite. These pebbles have come from the bedrock lying next to the beach. Each rock seen on the beaches had once been a part of the bedrock before it broke down and became an individual entity and so were these small pebbles.

Thousands of years ago as the glaciers melted, they hit the bedrocks and several small stones of different shapes and sizes were formed each time they did. These stones eventually got settled on the sea shores. As they came into contact with the sea waves and rolled up and down numerous times, they became more refined and rounded. These polished stones are commonly known as pebbles.

Saturday, 27 August 2016

How Meditation Can Help in Studies?

Students are often advised to squeeze in some time from their hectic schedule for meditation. Many schools and other educational institutes have specially included meditation and yoga in their curriculum. The power of meditation and its benefits have often been underrated. It is only once you begin practicing it you realise the kind of positivity it brings in your life. Let us learn as to how this simple art can help the students in their studies:

Improves the Power to Concentrate
Meditating regularly helps us focus on our inner self. It has been seen that students who practice this art are able to concentrate better on their studies that further helps in grasping the lessons easily and quickly. It also helps in remembering things for long.

Increases Determination
Increased focus leads to increase in efficiency and also keeps us determined. Staying determined is one of the main challenges faced by the students and what can be a better way to attain it than meditation
Boosts Confidence
Studies reveal that meditating regularly helps in boosting your confidence level drastically. As you sit to meditate, you relax deeply. You look within at your innate energies and then think about the problems around. Concentrating on your inner energies gives you the strength to fight any situation and thus boosts your confidence.

Reduces Stress Level
Meditation relaxes our mind as well as body thereby reducing stress. Practicing meditation on a daily basis helps in bringing inner peace and keeps stress, anxiety and depression at bay. It is thus highly recommended for the students who are overburdened by studies and expectations of the parents and teachers.

Thursday, 25 August 2016

Aman Mathur_Physics Faculty for NEET

Etoosindia is continually thriving to help aspiring medical and engineering students get admission in top institutes of the country. The institute provides online coaching so as to reach to every nook and corner of the country. For this purpose it has collaborated with some of the top faculties from Kota. Aman Mathur is the latest to join the bandwagon of the learned and experienced faculties at the institute.

AM, as he is mostly referred to, has been deployed at Etoosindia to teach physics to the students of grade 11th, 12th and 13th so as to prepare them for the National Eligibility-cum-Entrance Test (NEET).

Mr. Mathur, an alumnus of Petroleum Engineering from Rajiv Gandhi Institute of Petroleum Technology, qualified IIT JEE in 2010. He believes in generating the interest to read, write and analyze among the students to help them learn better. An expert in Physics, he has a unique way of putting his point across that helps the students grasp the topics easily.
His message to the students is to believe in themselves. “Always believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle. Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time”, he said addressing the students.

Log on :- http://etoosindia.com/faculties/aipmt/physics/500001/Etoos%20Physics%20Faculty/detail.do

How to Study 10 Hours a Day?

If you think you do not have enough time to prepare for your term exams and competitive examinations such as JEE or NEET simultaneously then it is time to re-think. The key is to manage your time efficiently. If you are seriously willing, you can study for as many as 10 hours a day without losing interest and enthusiasm. Here is how to study dedicatedly for 10 hours a day:

Schedule Your Time
It is very essential to schedule your time properly. Know your syllabus right and prepare your schedule accordingly so as to cover it on time. When you have a schedule handy you know just what you are required to do. So the time spent in planning your next move is saved.

Stick to Your Plan
Don’t just prepare a schedule; stick to it religiously. As soon as you wake up, have a look at all that needs to be covered during the day and begin accordingly. Review your plan at the end of each day just to ensure that you have covered all that you were supposed to.

Identify Your Time of Study
Some of you may concentrate better during the early morning hours while others might be able to study more efficiently during the afternoon or late evening hours. Just identify the time you can concentrate best and dedicate that time for mugging up your lessons so as to grasp more in lesser time. You can set aside some other time for your written assignments. It is also suggested to squeeze in some time to take mock tests such as the ones available on Etoosindia.com.

Use Different Ways of Studying
Do not keep reading from your books every time you sit to study. Watch online lectures, listen to audio clips of your lectures, write down as you read your text or go for group studies. This variation will keep your interest alive and also help you grasp better.

Take Short Breaks
Studying at a stretch mars your power to concentrate. It is thus advised to take short breaks in between to relax your mind as well as body. Meditate for sometime or do something that rejuvenates you instantly. This results in increased productivity.

Eat Right
Do not underestimate the power of eating healthy food. A well-balanced diet can keep your energy levels high all through the day and boost your power to concentrate. Junk food on the other hand can make you feel lethargic and hamper your studies.

Sleep Well
This is one aspect that should not be ignored. Sleep for at least 8 hours every night to ensure that you get proper rest. Also try to sleep and wake up at the same time every day. What you should avoid is setting the routine of sleeping at the time your exam is scheduled.

Wednesday, 24 August 2016

Properties of Mixtures

A mixture is basically a substance that contains two or more compounds or elements. These elements or compounds may be set in just any proportion and are such that these can be segregated by using easy mechanical technique.
Here are some examples of mixtures:

  • Alloys: Two or more metals such as steel, brass and bronze are brought together to build alloys.
  • Solids: Mixture is also formed when two solids such as salt and gravel are mixed together.
  • Gunpowder: It is a mixture of potassium nitrate, sulphur and coal.
  • Air: It is a mixture of nitrogen, carbon dioxide, oxygen water vapour and certain other substances.

There are basically two types of mixtures – Homogeneous and Heterogeneous. Let us learn about these in detail:

  1. Homogeneous
    A mixture can either be homogeneous or heterogeneous. A homogeneous mixture is one that has a consistent composition all through its mass without any visible boundaries amid the different constituents. For instance, the mixture of salt and water is a homogeneous mixture. Every portion of it has the same amount of salt and water without any visible boundaries. Similarly, air is also a homogeneous mixture of different gases and so are the mixtures of liquids such as milk and water or alcohol and water.
  2. Heterogeneous
    Heterogeneous mixture does not have a uniform composition all through its mass. The different constituents in this mixture are demarcated by sharp boundaries that can be seen if looked at carefully. One example of a heterogeneous mixture can be salt and sand. Oil and water mixture can also be said to be heterogeneous as oil does not get dissolved in water. It rather floats on it.
  3. Let us now have a look at the properties of mixtures:
  • Composition and Energy
    The composition of both homogeneous and heterogeneous mixture is not fixed. Besides, when it comes to energy, it is neither absorbed nor is it given out. There is no change in the energy. 
  • Chemical Reaction
    No chemical reaction takes place when a mixture is formed.
  • The Process of Separation
    Various separation techniques such as evaporation, magnetic effect, sublimation and filtration are used to separate the elements of a mixture.
  • Melting and Boiling Point
    There is no specific boiling point or melting point when it comes to a mixture.

IITs to Keep Eye on Hiring by Start-ups, Focus on PSU Jobs

Recently there have been cases of job offers being revoked by start ups. Cases of joining dates being postponed have also come up. This has created unrest among the IITians and the management at these esteemed institutes has thus decided to intervene. As per the latest update, IITs are planning to amend their placement policies slightly so as to make sure that the students do not have to face this situation moving forward.

The institutes are making sure they do a thorough background check of the start-ups and analyze as to how far they would go. They are also planning to be persistent on knowing the joining dates of these firms. Talking about the general norm of the start-ups, Shefali Jindal, the placement co-ordinator at IIT Delhi said, “Though they always gave tentative dates, we are planning to get them in writing”.
Another major change that is likely to come about is that Public Sector Units (PSUs), that had not been a part of the campus placements for the last couple of years, shall join the bandwagon yet again and the focus shall be on the ‘Make in India’ initiative. In case you aren’t aware, the public sector units had been missing from the campus placements for the last few months due to the high court order. Shovan Panigrahi, the head of the placement committee at IIT Kharagpur shared that start-ups usually do not want to take chances due to financial crunch. This is the reason why the focus is now shifting to the PSUs.

Various firms from different sectors including fabrication, metal and manufacturing have been invited to different IITs for the first phase of placement this year.

Friday, 19 August 2016

IIT Kharagpur to co-host Empresario 2017

IIT Kharagpur has planned to host Empresario 2017 in association with International Business Model Competition (IBMC). The event is an initiative by the Entrepreneurship Cell of the college.
Formed in the year 2006, the cell is a non-profit student’s organization that has especially been set up to nurture entrepreneurship spirit among students. It has been involved in helping start-ups set up their business ever since its inception. The purpose of organizing Empresario is also the same. It is aimed at giving upcoming start-ups the right methodology to work on so that they can grow on to become successful businesses.

As a part of this event, business ideas would be invited in various fields including product design, product and service and social categories. The best idea will stand a chance to win a prize and incubation money as high as Rs. 2.5 crore. The shortlisted entries shall get the chance to be mentored by industry experts and the winners will be given the opportunity to pitch their ideas to some of the biggest VCs and investors in the country.

The top entries in each category will get a chance to take part in the semi-final round of IBMC 2017 that shall be organized abroad. The grand finale at Global Entrepreneurship Summit (GES) shall be organized post the semi final round. This is the biggest collegiate entrepreneurial summit held in India each year in the month of January.

Those interested can log on to www.ecell-iitkgp.org/empresario to get the application details.

Wednesday, 17 August 2016

Happy Raksha Bandhan

Raksha Bandhan, popularly known as the Rakhi Festival, is celebrated with great zeal in various parts of India. It falls in the Sravana month that usually comes in the month of August. This Hindu festival, which is primarily celebrated in the western and northern parts of the country, is celebrated to strengthen the bond between brothers and sisters. Not many of you may be aware that this pious festival is not just celebrated in India but is also observed in different parts of Nepal and Mauritius.
On this auspicious day, the sisters tie a sacred thread called Rakhi on their brother’s wrist. Several colourful Rakhis of different shapes and sizes are made available in the market days before the festival. A lot of excitement is seen among women who go shopping for these beautiful threads. Many are also seen shopping for new clothes and jewellery to adorn on this special occasion.
The sisters pray for their brother’s health and well being as they tie the knot. The brothers on the other hand vow to protect their sisters from every evil. Rakhi festival is celebrated during the morning hours and the sisters do not eat anything until they tie the sacred thread. As a ritual, aarti is performed, prayers are said and the sisters apply tilak on their brothers’ forehead before tying the rakhi. Both of them then share sweets and brothers present gift to their sisters.
Like various other festivals in India, this one also brings the families together and strengthens their bond.


NEET 2016 Results Declaired

The much awaited National Eligibility-cum-Entrance Test (NEET) result is out for phase 1 and 2. The Central Board of Secondary Education has declared the result today, that is, on the 17th of August.
NEET is set to select students for admission in top medical colleges across the country. It was proposed to replace AIPMT with NEET in the year 2012 however this proposal incurred a lot of criticism and opposition. As many as 80 cases were filed to oppose this test out of which two were filed by the state governments and the rest by minority and private institutes.

However, amidst all the opposition the Supreme Court approved of the proposal three days before the AIPMT exam this year. It declared that NEET is mandatory for all the medical and dental aspirants.
You can log on to cbseresults.nic.in and follow the below mentioned steps to check your NEET result:
•    Click on the NEET Result tab
•    You will be taken to a new page where in you will have to key in your date of birth and roll number
•    The result will be shown in front of you

The Central Board of Secondary Education has already shared the answer keys for the exam.

Thursday, 11 August 2016

Mystery of Black Hole

Black holes are formed as a result of disintegration of massive size stars in the space. These are not visible from the earth like the stars and planets. High tech equipments and close scientific observation is required to discover these.
 These big black holes are known for their incredible gravitational power and the density of their formation. Nothing, not even light, can escape this gravitational force. Any star or other heavenly body that comes in contact with this black hole gets absorbed in it and is never able to come out. So the formation of these black holes basically depends on the matter in the space. The reason behind the actual origin of the black holes still remains a mystery however scientists keep coming up with different interesting theories on the same.

  • There are three types of black holes. These are:
  • The Super Massive: This is present in the center of a galaxy. These holes grow bigger and bigger in size as they absorb stars and other heavenly bodies.
  • The Stellar: Stellar black holes are formed when a massive star collapses at its core.
  • The Miniature: Miniature black hole’s formation is associated with the Big Bang Theory. It is said that these holes emerged as the universe started expanding at a rapid pace. However, as per another scientific theory the Big Bang and the creation of the black holes are both different ideas.

As per a research, there are several big and small black holes across the universe including the Milky Way. The Cygnus X-1 that is found in space has been under scientific observation since the 1960s. It is a source of X-rays as a result of which the scientists believe that it is a black hole.

Wednesday, 10 August 2016

Why does Chameleon Change Colour ?

One of the things that set chameleons apart from other reptiles is that they can camouflage. Chameleons can change their colour as per their will. A lot of research has been done on how and why these big lizard-like reptiles change their colour. Contrary to the popular belief that chameleons change their colour to camouflage and blend with their surroundings, studies have proved that these creatures undergo this change in response to the following things:

The Temperature Around
It is a known fact that dark colours absorb light and thus heat faster whereas light colours reflect it. This is the reason why we prefer wearing lighter shades during summers and darker ones during the winter season. Surprisingly, chameleons also seem to know this and thus use their skin as a thermostat so as to maintain their body temperature. When a chameleon feels cold it changes its colour to dark green. Similarly, when it is hot outside, it changes its colour to mint green.

Self Expression
One study shows that chameleons change their colour as per their mood. This is to say that the colour they don is a means of self expression. When scared or angry, these creatures darken their colour and when excited they change their colour to a brighter shade.

Chameleons are also said to change colour for the purpose of matting. They don lighter shades to attract mates. It has been observed that male chameleons change their colour more often as compared to the females who give other subtle hints for this purpose.
Certain studies also state that chameleons change their colour based on the intensity of light. A chameleon may change its colour several times a day based on the above stated factors.

Why do people burp ?

When we consume food and beverages we also tend to swallow air with it. This air is a mix of different gases such as nitrogen and oxygen. These gases at times need a vent and make their way out through the mouth which is termed as burp.

The extra gases you swallow along with your food and drink are forced to move out of the digestive tract. These cases move upwards from the stomach to the esophagus and are then released from the mouth. In case you aren’t aware, esophagus is the food pipe that connects the back of the throat to the stomach. This is the body’s natural mechanism to remove extra gases from the digestive tract. You must have often noticed that you tend to burp more after having carbonated drinks. This is because these contain gases that try to make their way out soon after you gulp the drink. You also tend to burp more when you eat very fast. Eating too fast can lead to indigestion and make you burp more as this way you are taking more air inside.

Besides, burp is even caused as one unconsciously swallows the air when he is anxious or nervous. Those who talk while eating, have their drink through straw, smoke, have tobacco, eat chewing gums, laugh out loud or drink alcohol also tend to take in more air and thus burp more.
Though burping is completely normal and not something to worry about if you have been burping too much then you better need to keep a check on what you eat and how you eat it.

Saturday, 6 August 2016

13 Most Innovative Schools in the World

More and more schools these days have begun using innovative methods for imparting education, incorporating discipline and maintaining the overall environment. However, the innovations used at the 13 schools mentioned here are unmatched. Let us see as to why these schools are known for their unique and innovative ideas.

Big Picture Learning, Providence, Rhode Island
Unlike most of the other schools, Big Picture Learning does not focus majorly on the theoretical aspect. Rather, it gives exposure to the real world. Students are encouraged to explore their passion by linking them with mentors who work in that particular field.

Brightworks School, San Fancisco
This school encourages the students to explore and express. It allows the students to play with things that should be kept away from them – under of course the supervision of the teachers. They work on the philosophy that exposure to risks helps enhance creative thinking and problem solving ability of the students.

Innova Schools, Peru
Different techniques including tech-heavy online learning, group work and guided lessons are used to impart education to the students in this school. Half the time is set aside for guided online education and the remaining is spent in giving conventional training.
As many as 29 Innova schools have been opened across Peru.

Clairemont Elementary School, Decatur, Georgia
It is known as one of the first expeditionary learning institutions in the country. The school uses highly effective instructional methods to help improve the understanding of the students.

Visitacion Valley Middle School, San Francisco
The school has come in the limelight owing to its meditation program. In association with the Centre for Wellness and Achievement for Education, the school has come up with the idea of squeezing in some quite time for the students each day. This helps in boosting their confidence level as well as the power to concentrate.

Blue School, New York
It focuses on both creativity and compassion. Founded as a play group, it soon grew into a full-fledged educational institution. The students’ creativity is honed by involving them in different unique activities such as creating 3D models.

Quest to Learn, New York
This school uses a unique way of teaching under which the students practice absolute value and integer operations by using card game. The students are made to understand that play and work co-exist.

P Tech High School, Brooklyn, New York
Launched by IBM, this school aims at providing thorough technical training to the students to make them ready for the corporate world. As Stanley Litow from IBM puts it, the school offers “a clear pathway from school to career, giving young people options that they could not imagine, and directly advancing the nation's economy.”

Vergennes Union High School, Vergennes, VT
Among the several innovations that this school is known for, the most appreciated one is the one that allows the students to take part in the Walden Project. Under this project, the students are given the opportunity to explore and analyse the real world and find out as to how they can contribute to it.

Makoko Floating School
Located in Lagos, Nigeria, this school has a triangular frame and is three stories high. The school that can accommodate up to 100 students was constructed to keep the rising water level in the lagoon at bay. Spread across 1000 acres, this is an all ages school that serves as communal learning space.

Carpe Diem Schools, Ohio and Indiana
The students are made to sit in a proper office space that includes individual cubicles. They are engaged in solo projects to help explore their individual interests. Professional-level workshops are conducted to give wings to their passion.

Samaschool, San Francisco, California
The school has especially been built to help the adults get what they truly deserve. Adults struggling to find jobs are imparted digital and entrepreneurial skills here. There are different courses to choose from.

Sra Pou Vocational School, Sra Pou Village, Cambodia
This all ages located in Cambodian was put in place to help the community members understand the technique to turn their passion into their profession. It has helped many locals chase their dreams.

Friday, 5 August 2016

Same Genes Could Make Us Prone to Both Happiness and Depression

Researchers have found out that the same genes that are a cause of depression can also bring in positivity and uplift our mood. It is stated that cognitive biases happen when people constantly construe different situations through mental filters.

Professor, Elaine Fox from the Oxford University, UK, suggested that while there is possibly no gene that causes mental ill health, some of them have the power to “make people more sensitive to the effects of their environment – for better and for worse”. However, what really happens to a person’s mental health is based on the atmosphere he is in and not owing to the differences in his genes. If an individual is caught in a negative atmosphere, he may develop cognitive biases that are likely to cause mental disorders.

On the other hand, people with the same set of genes may develop positive cognitive biases if exposed to a positive and supportive environment. A number of studies have been referred to and it has been concluded that there is a need to club the research done on mental health genetics with the ones that study cognitive biases. Talking about the same, Professor Chris Beevers at the University of Texas said, “There is a lot of research about these biases, and a lot of research about genes that may make people susceptible to mental ill health. However, we suggest that it could make more sense to bring together these two areas of research.

Thursday, 4 August 2016

All You Need to Know About the Zika Virus

Zika is a RNA virus which occurs by the bite of infected Aedes mosquito. This virus is related to the West Nile, yellow fever and dengue viruses. A person bitten by this mosquito becomes viremic and when he is bitten by another mosquito the virus is passed along. Viremic men can also transmit this virus to their partners sexually. It is thus suggested to use protection if your male partner is infected by the Zika virus or has travelled to a place where this virus is spreading.

Zika virus outbreak was reported throughout Africa from 1951 to 1981. However, the virus has spread rapidly since its cases were discovered in Latin America in 2014. Africa, Pacific Islands and the United States are the places where the Zika virus is currently active. The virus caused the death of a Utah resident as per a statement released by the Salt Lake County Department of Health on the 8th of July this year. This was the first reported Zika related death in the continental United States. Another Zika related death was reported on the 29th of April in Puerto Rico.

Zika has also become a cause of birth defects. Quite a few cases of Zika-related birth defects have been reported in the United States. The cases of this infection are on a rise in the United States. As Dr. Chan from WHO states, the virus related cases are “spreading explosively”. Health officials are still trying to figure out the possible causes of the rapid spread of this virus as well as the ways to curb the problem. “I think the world got caught by surprise at the congenital infections. Now there’s going to be a lot of interest in a vaccine for women of reproductive age, like the rubella vaccine [to prevent birth defects]”, shared Peter Jay Hotez, MD, Ph.D. and dean at the National School of Tropical Medicine at the Baylor College of Medicine.

In most cases, the individuals infected by this virus only suffer from mild flu, fever and rashes. However, as per the latest research, it likely causes Guillain-Barre syndrome in adults wherein the immune system attacks the nerves and causes muscle weakness and may even result in paralysis. In pregnant women, it leads to birth defects such as microcephaly where in the infant suffers from an abnormally small head and brain size. The symptoms of Zika-virus are usually muscle and joint pain, conjunctivitis, flu and headache. Internal bleeding has also been observed in rare cases.

As a precautionary measure the Food and Drug Administration suggests not to donate organs, blood, tissue, semen, oocytes, heart valves, placenta, umbilical cord blood, corneas and bone skin within six months of having:

a) Suffered from Zika infection
b) Having physical intercourse with a man infected with this virus.
c) Having travelled to Zika active zone.

How to Manage Your Anxiety Before Exams?

Whether you are about to give your regular school exams or competitive examinations such as JEE or NEET, it is natural to feel anxious and nervous as the exams approach. However, you can overcome this anxiety with little effort. Let us learn how:

Schedule Your Time
You might have covered the entire syllabus however it is still suggested to schedule your time for the remaining days so as to make the most of the time left. Set a time for revising your chapters, giving mock tests and working on your weak areas. Also make sure you know just what you need to give a quick glance to on the morning of the exam.

Eat Right
Eating junk food such as oily, fried and sugary items can hamper proper functioning of your body and increase your stress and anxiety levels. On the other hand, a well-balanced diet including nutritious food such as fresh fruits, green vegetables, pulses, cereals, nuts, milk and yogurt keeps you healthy and helps you concentrate better on your studies. So follow a healthy diet plan all through the preparation period and also ensure that you do not have junk or processed food just before the exam. Have a bowl of cereal clubbed with some fresh fruits before going for the exam.

Sleep Well
Lack of sleep is yet another cause of anxiety and depression. It is thus essential to take a proper 8 hours sleep every night. It is suggested to sleep and wake up at the same time each day. Also make sure you sleep well on time the night before the exam.

It is suggested to squeeze in some time for meditation each day. This is a sure shot way to release stress and boost your confidence level. Squeeze in around 10-15 minutes in the morning before the exam for meditation.

Steer Clear from Negative Talks
Do not indulge in any kind of negative discussion with your friends especially on the day of the exam. This will only make you panic and raise your anxiety level. Stay calm and try to spend some quite time with yourself before the exam begins. Better still take a few slow and deep breaths.

Stay Positive
Lastly, remind yourself that you are well-prepared for the exam and can handle any question asked in the paper. Remember, your attitude can drive your performance to a great extent.