PHYSICS EXPERIMENTS

discover everything from nature.....

slide 1

knowledge is power

develop scientific approach...

dream big

learning is continuous process....

LEARNING BY DOING

combine experiments and theory....

Wednesday, 22 November 2017

LibfreOffice Calc

Getting started with LibreOffice Calc

What is LibreOffice Calc?  Calc is the spreadsheet component of LibreOffice, generally we use data which is entered in a spreadsheet and then it can be manipulated, to produce required results.  In LibreOffice Calc, one can use different Functions to perform mathematical based calculations, the main advantage of it is, we can convert calc file into different types of files like HTML, pdf, etc.
 
introduction:
 
Calc consists of spreadsheets, each spreadsheet is divided into various individual sheets, each sheet consists of cells.  To identify a cell, we should take its row number and column letter.  Each sheet consists of rows and columns.
 
parts of the Calc:
 
1) title bar:  The name of the current spreadsheet.  If it is a new spreadsheet, the name would be untitled X. 
 
2) Menu bar:  It is after the title bar, sub menus will appear in a menu, when we click on it.  The menu bar menus are...File, Edit, View, Insert, Format, Tools, Data, Window, Help, ..
 
3) tool bar:

Saturday, 4 November 2017

PROTEIN FOR EVERYONE

IMPORTANCE OF PROTEIN:


Throughout every stage in life, our body needs a healthy balance of protein.  Children needs protein for growth and development, adults use protein to build new tissues and to decrease the effects of stress.  Elderly require protein for muscle tone and to have good health.  Protein is the basic building block for muscles and every body components.  Protein provides energy.

Which is the best protein source?


- A high quality protein source is soy protein isolate.  Our body does not prepare all amino acids, we have to consume 9 essential acids from food only.  A protein in food, should provide all 9 essential amino acids.

- protein rich foods should have low fat.

- any product of protein source should have a PDCAAS score of 1

Who needs protein?

- to get all 9 essential amino acids

- who does not drink adequate amounts of milk, and other low fat protein sources etc.

- pregnant and lactating women should consume more protein.


 subject on amino acids



Amino acids are the building blocks of proteins.  Proteins are the long chains of amino acids. Proteins are necessary for staying healthy and alive.  Our human body has thousands of different proteins.  Each amino acid consists, a central carbon atom, an amino group, a carboxyl group, and an R group.  Each amino acid is unique depends on R group. Amino acids are alanine, arginine, asparagine, aspartic acid, cystein, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan,  tyrosine, valine.  There are two types of amino acids, they are essential and non-essential amino acids.  One should get essential amino acids from food only our body cannot synthesize these. 

uses of protein  



Protein is a macronutrient, which tells us that our needs relatively large amounts of protein.  Vitamins and minerals are micro nutrients which are needed in small quantities they are called micro nutrients.  Our body does not store protein.  Hair and nails are mostly made of protein.  Our body uses the proteins to repair and build tissues.  Proteins helps in making enzymes, hormones, and other body chemicals.  Protein is an important building block of skin, blood, cartilage and bones and muscles. Protein helps in maintaining weight.   Protein is called building block of the body.  Protein helps for the maintenance of the body tissue.  Protein helps in creating harmones.  A small protein, insulin, that regulates the blood sugar.  Proteins also helps in digestion. Secretin a protein harmone helps in digestion.

Enzymes:  Without enzymes most of the chemical reactions efficiently proceed in the body.  Enzymes increase the rate of chemical reactions.  

Haemoglobin is a protein that transports oxygen throughout the body.Protein also acts as antibody.  Which prevents infection, illness.  It destroys bacteria and viruses.  

protein deficiency:


Protein rich foods should be consumed adequately since our body does not store protein.  General symptoms are fluid retention, anemia, shrinkage of muscular tisses, increase blood pressure, slow to heal, menstrual cycle is irregular, poor concentration, poor sleep, high cholesterol, hair breakage and hair loss, etc. 

Wednesday, 4 October 2017

How to reduce Blood Pressure?

BLOOD PRESSURE - REDUCE NATURALLY...

Blood pressure can be in control by adopting suitable methods...healthy life style makes to reduce blood pressure naturally without any medication.  One of the important step is to reduce weight, by loosing some extra pounds will definitely reduce blood pressure, and always check the waist measurement.  Men should not have more than 102 cm and women should not have 89 cm of waist measurement.  Second important thing is to exercise regularly, can reduce around 5 to 10 millimeters of Hg, but one should not skip in doing exercise.  Third most important thing is to include good and healthy diet including whole grains, fruits, vegetables and have containing potassium products and reduce sodium in take and also consume less amount of alcohol. Smoking is very effective way to increase blood pressure.

Saturday, 23 September 2017

JOB ORIENTED COURSES


Wednesday, 20 September 2017

COURSES AFTER 12TH STANDARD

What are the eduacational opportunities after completion of 12th standard?


In India, we have good educational system, that is 10+2+3 or 10+2+4 system, 10th standard in various states is called as Secondary School Certificate, it is administered by different Boards, after completion of SSC, or 10th standard, a student has the opportunity to select different branches such as MPC, BiPC, MEC, CEC, HEC, Groups.  There are plenty of opportunities after completing these courses.  We have various branches for Mathematics group students and Biology group students, and there is a large opportunity for Commerce and Arts group students also.

COURSES FOR Mathematics, Physics, Chemistry students........


1.TECHNICAL COURSES:

 - ENGINEERING COURSES.....

There are various branches in Engineering.  To get admission in this engineering B.Tech, or B.E., course, one has appear for common entrance test conducted by state and central governments.  For state board, there is affiliation given by different universities.  The entrance conducted national level is JEE Mains and advanced.  When a student gets qualified in this entrance test , student is eligible for getting seat in prestigious colleges such as Indian Institute of Technology and other leading colleges.  There are secondary grade colleges also.  The student gets admission if he gets less marks.



1. Computer science and Engineering:


All over the world, each and every where computer is being used.  There is a lot of demand for computer science engineering graduates.  There are different types of sectors where an IT graduate can be placed.  The sectors include, handling projects of various companies, banking works, networking, developing website, and writing codes for a website.  Computer engineers also have the opportunity to work in government sectors such as banks, administration departments, implementing government schemes.  Developing various departments' websites, and so on.  Any fresh IT Graduate can have the chance to get amount of Rs.30,000/- a month.  An average pay scale range between 2 lakh to 3 lakh per annum for a fresh IT Graduate.

2. Mechanical Engineering:


We can say that one of the oldest engineering disciplines is a Mechanical Engineering.  Mechanical engineer has a lot of scope to work in various sectors such as automobiles, aeronautical, rocket launching stations.  A mechanical engineer can design a new vehicle.  The subject is full of designing an equipment for different machines.

3. Electrical engineering:


Electrical engineers have plenty of opportunity to work in both government and private sectors.  An electrical engineer work with different circuits, power transmission, power production.  There are different power plants, they produce power with coal, water, wind, etc.  Each and every where electrical engineer is needed. After 12th, one has the chance to enter the engineering course and also complete by selecting diploma courses.

4. Civil engineering:


Now a days, civil engineers have very demand due to increase of construction field.  There are different sectors to work these civil engineers.  These people mainly focus on planning and implementing.  Civil engineers have the opportunity to act as builder.  Who can give plan and work for constructing a house. After completing engineering course, one has the chance to complete M.Tech, there are various specialisations to become master in that subject, they are construction engineering, coastal engineering, forensic engineering, structural engineering, etc.

5. Electronics and communication engineering:


ECE people, has good opportunity to work in their electronics sector and software sector.  These engineers have the demand to work as chip designers.  Computer has various parts such as ICs, micro processors, hardware parts, the computer maintenance is done by ECE engineers.  They can write programs in machine level language and converts into high level language.

6. Electrical and electronics engineering:


These students will acquire knowledge on both electrical and electronics. They have the opportunity to work in both electrical and electronics sectors.  Power stations are inviting applications for the EEE students.

7. Aeronautical engineering:


After completing the course one can get knowledge on airplanes, and how they work, and maintenance of the airplanes.  These people can work in aviation manufacturing, etc.

8. Agricultural Engineering:


It is the latest engineering branch, these get the placement at various agricultural labs, botonical research labs. These people get the knowledge on the technology of agricultural development.

9.Petroleum Engineering:


These people gets high remuneration, since they deal with petroleum exploration, production.  These engineers work with drilling plant, petroleum industries.

10. Textile Engineering:


It is huge demand subject, since textile involves design of fiber and production of cloth.  This engineering sector is huge potential subject.

11. Food technology engineering:


These engineers look after preparation and preservation of food and they work as food inspectors, they also can work in packaging industry.

12. Chemical Engineering:


As the name suggests, it is a combination of chemistry and engineering.  These people work in industries, they work on result, process of a particular topic. These engineers have huge demand in medical field, where new drugs are manufactured.



Sunday, 17 September 2017

Atal Pension Yojana - Government scheme


What is cholestrol - How to reduce naturally

Concept on Cholesterol :


Where do we find the cholesterol in our body? Can you imagine, where it is found? What are the effects of Cholesterol raise in blood? When do we say cholesterol as Plaque?  Cholesterol occurs in all parts of the body, cholesterol is a waxy and fat like substance.  There is necessity of cholesterol to work properly.  But, when the cholesterol levels increased in bloody, then plaque is formed by combining with other type of materials in our body, plaque narrows the arteries, some times, plaque acts as block to the blood flow.  A small part of our body is called a cell.  These cells are built using the cholesterol.  How can a body contain cholesterol?  Larger organ liver makes required cholesterol for entire body, then how can cholesterol levels increased in our body?  Cholesterol levels are increased by over production of cholesterol by liver.  This is due to consumption of cholesterol contain foods, they are meat, chicken, etc., these are the productions of saturated and trans fat.  Who carries the cholesterol to all cells? The carriers are lipids and proteins.  Generally, they are called lipoproteins.  How many types of lipoproteins are there?  LDL and HDL.  The reasons for the formation of plaque in arteries is LDL.  This lipoprotein is called bad cholesterol.  The levels of LDL if it is high, it causes heart attack.  Why HDL is called good cholesterol?  HDL cleans the bad cholesterol, it returns the cholesterol to liver.  


HOW TO REDUCE BAD CHOLESTEROL?

What should we do to reduce bad cholesterol or increase good cholesterol?

First and important thing is changing our life style by taking good foods and starting an exercise program.  Essential thing is adding good and super foods in our diet menu.  One should consume soya products, these reduce cholesterol, at least one has to consume 1g/body weight kg.  Our daily diet should have at least one nut related food item.  Other foods are oats and barley along with fruits and vegetables.  We should see that the saturated food products should be avoided.  


Saturday, 9 September 2017

mobile news & offers

LATEST NEWS ON MOBILES & OFFERS


samsung-note-8


SAMSUNG GALAXY NOTE 8 

Samsung galaxy note 8 is a very portable and high resolution camera phone, note 8 has infinity display with resolution of 1440 x 2960 pixels.  The size of the mobile is 6.3 inch. It has speed micro processor.  It consists of a rear camera with 12-megapixel, and another front camera with 8-megapixel with focal length divided by 1.7 aperture.  Good news is that it consists of a glass with 5 layers, which helps not to scratch easily.  Samsung guarantees on fire effects. It has a Random Access Memory (RAM) of 6GB, it uses an operating system of Android 7.1.1, great advantage is that it has good storing capacity of 64GB, one can feel happy due to its battery capacity of 3300mAh.



NEW Apple iPhone X ......


iPhoneX


September 12, 2017 is another historical day to all mobile lovers.  Apple Chief Executive Officer, Tim Cook unveiled the latest top-of-line handset iPhone X, it is a phone of advanced features and it is available in two vibrant colours, they are silver and space grey.  This phone is the most expensive phone from iPhone series.  It has alternative of edge to edge display.  This phone will be the role model to all coming versions of mobiles.  The major advantages of the phone is wireless charging facility which was not found in earlier mobiles.  Another big advantage of the phone is infrared facial recognition.  This features is replaced by earlier touch-ID, this new facial scanning system is very big change in the mobiles, and it can scan and identify among millions of faces.



WORLD STUDENTS' DAY - Dr. APJ Abdul kalam birth anniversary

UN Declares APJ Abdul Kalam's Birthday as WORLD STUDENTS' DAY



INTRODUCTION:


      Let us recollect the inspirational sayings :

"YOU HAVE TO DREAM BEFORE YOUR DREAMS COME TRUE."

"WITHOUT YOUR INVOLVEMENT YOU CAN'T SUCCEED, WITH OUR INVOLVEMENT YOU CAN'T FAIL."

"IF A COUNTRY IS TO BE CORRUPTION FREE AND BECOME A NATION OF BEAUTIFUL MINDS, I STRONGLY FEEL THERE ARE THREE KEY SOCIETAL MEMBERS WHO CAN MAKE A DIFFERENCE.  THEY ARE THE FATHER, MOTHER, AND THE TEACHER."

Let us read the poem written by Dr.APJ Abdul kalam,

I am a well in this great land
Look at its millions of boys and girls
To draw from me
The inexhaustible divinity
And spread his grace everywhere
As does the water drawn from a well


CHILDHOOD LIFE :

Kalam was born on 15th october, 1931, in Rameshwaram, the state of Tamilnadu.  His full name is Avul Pakir Jainulabdeen Abdul Kalam.  Kalam sold newspapers in his childhood to support his family since his ancestors were very rich, but due to the failures in business, they became poor.  Even they have no house.  Kalam's mother go hungry by feeding lovingly to her children.  Kalam's best friend in his childhood was Jallaluddin, who was 15 years older than Kalam.

Kalam was very curious to learn new things, when his teacher Sri Siva Subramania Iyer, took all the students to sea shore and asked them to think how the birds fly in the air? This made Kalam to think and think and decided to do something in his life. Kalam's high school education completed in Schwartz high school, and finished his college education in St. Joseph's college, Tiruchchirappalli, at the age of 19.  He completed his aeronautical engineering at the Madras Institute of Technology (MIT), the reason behind his successful completion of engineering is his sister Zohra.  In the third year of engineering, the team with Kalam was assigned a project to design a low-level attack aircraft.  They finished in given stipulated time.

AS A SCIENTIST: & PRESIDENT OF INDIA

He joined the Aeronautical Development Establishment of the Defence Research and Development Organisation (DRDO) as a scientist in 1958. When he was working at TIFR, he was sent to NASA work center to receive training on Sounding rocket launching techniques.  Kalam named as "Missile Man" due to his achievements as the director of the Integrated Guided Missile Development Programme.  Kalam was appointed as the Principal Scientific Adviser to the Government of India in 1992.  His successful efforts took place in conducting the Pokhran-II, five nuclear bomb test explosions.

Abdul Kalam was a great visionary, his target was to call the nation as developed nation by 2020,  this plan called "Technology Vision 2020". Klam became the 11th President of India on 25th July 2002, the speciality of the man is a Scientist President.  Kalam became the people's president of India.  Kalam  always used to tell that do differently, innovatively such that your mark should be there.  One should always remember his sayings:  Aiming small is a crime.One should overcome the difficulties by intellect and hard work.  Kalam is the role model to world wide youth, and each and every person the earth loves Kalam.

Kalam not only a great scientist, but also an Inspiring Author : great inspiring books are India 2020, Wings of Life, Ignited Minds, Inspiring Thoughts, Mission India.

Each and every person of India needs his blessings.

MOBILE PROBLEMS - iPhone

ABOUT iPHONE and its problems and solutions.


iPhone is a mobile which is very specialised among all other mobile phones.  iPhone is designed by Apple Inc. and the same Apple Inc. also markets the iphones.  In the year 2007, the first iPhone was launched, this iPhone uses the iOS mobile operating system.  The weight of the phone is gradually increased from 135 g to 188g which is the weight of latest 7 plus. There are so many features in iPhone, for example, the battery of the phone is very special type, even if we charge over 100% also nothing happens, and the rate of charging will slow down, when it about to reach 100%, this is a big advantage. 


1. How can we GPS to work?


check in settings, privacy, location services, this location services should be toggled on at the top.

2. What to do if the display is unresponsive?


Initially you switch it OFF and then ON, then check once. If not, delete some unwanted apps.

3. What is the problem for not receiving and sending iMessages?


Just check to whom you are sending is not in Block list, and you can also do like turn iMessage off and then ON it and check.

4. What to do if I forget my passcode or enter wrong passcode?

Generally, iPhone allows only 6 trials, then the phone will be blocked.  If you forget your passcode, initially, take the backup and delete all and you can recover using iTunes. 

5. Not to see enlarged icons or images, what to do?


This makes to fill completely the screen, to avoid this problem, goto settings, general, accessibility then choose zoom off.

6. Can I use another charger to charge iPhone?


No, you should use only the charger that came with your iPhone.