C.V. Raman

Chandrasekhar Venkata Raman was born at Tiruchirapalli in Tamil Nadu on 7th November 1888.

 Raman’s father was Chandrasekaran Ramanathan Iyer,  a teacher of mathematics and physics. His mother was Parvathi Ammal, who was taught to read and write by her husband. Hailing from a family of modest means Raman was the second of eight children.They were Brahmins but  his father paid little attention to religious matters: There was an academic atmosphere at home.  .

When Raman was four years old his father got a job as a lecturer and the family moved to Waltair (now Visakhapatnam).Raman was greatly interested in science. On vacations he would demonstrate experiments to his younger brothers and sisters.

He was awarded a scholarship and  studied at Presidency College for his master’s degree.  In November 1906, aged 18, Raman had his first academic paper published in the Philosophical Magazine .  When his second paper  was published he received a letter from Lord Rayleigh, the eminent British physicist who was unaware that Raman was just a teenage student .The letter was sent to “Professor Raman.”

 Although Raman was intent upon a scientific career, his family was in debt and  his brother persuaded him to  join the civil service. For 10 years Raman worked as a civil servant in the Indian Finance Department in Calcutta (now Kolkata ) In his free time he carried out research into the physics of stringed instruments and drums. He did this work at the Indian Association for the Cultivation of Science (IACS).  He also gave public lectures in Calcutta popularizing science.

He then got into full  time research .He did not take any government funds . With basic resources and great passion he and his students did great research. He was awarded the Nobel Prize  in Physics  and many other awards ,including the Bharat Ratna. He was the first Indian to be awarded the Nobel Prize.

In 1933 Raman became the first Indian director of the Indian Institute of Science in Bangalore. In 1947 he became independent India’s first National Professor. In 1948 he founded the Raman Research Institute in Bangalore, where he worked until the end of his life.

 

“It appears to me that this very beautiful discovery which resulted from Raman’s long and patient study of the phenomenon of light scattering is one of the best convincing proofs of the quantum theory.”
ROBERT W. WOOD: PHYSICIST – 1928

PENCIL

 

                                                  LIVE LIKE A PENCIL

We start writing with a  pencil. There are so many beautiful pencils.

The pencil has to be sharpened before we start writing.

We can always use an eraser if we want to correct what we have written.

The lead of the pencil is what we require if we want to write.

Life is just like a pencil. We should work with joy. We should learn to correct our mistakes.  We should have a pure heart and make our lives happy and peaceful.

.

 

Think and answer.

Are pencils colourful?

Are you careful with your pencils?

Do you lend your pencil to others?

Which do you prefer— a pen or a pencil?

 

1       Improve your writing skills.

Fill the blank with the right word.

  1. I like to ————– with a pen.   (    right, write, rite )
  2. I like to read a  _____________ before going to bed.(story, storey )
  3. I always ________till all my friends come to the playground. (wait, weight, wieght )
  4. I ———–  the school bus at eight ‘o’ clock. (bored, board)
  5.  We have a ———–  near our school on Tuesdays.(fair, fare)

2    Make sentences with the words given.

1  books    cover     labels   stick

2  homework      evening

3. play     friends    evening

4  park   Sundays

5  polish   shoes   morning

Have some fun

3  Unscramble the letters and make a proper word. Make as many three letter  words as you can. You should use each letter only once.

aretceh

 

 

CHECK YOUR ANSWERS.

1   write   ,     story   ,wait   ,   board,     fair

2. 1 I cover my books and paste the labels.

2. I do my homework in the evening.

3. I play with my friends in the evening

4 I go to  the park on Sundays.

5.I polish my shoes in the morning.

 

3  The word is   teacher.

Some words—

eat, ate, tea, cat, chat, hat , hate, heat,hare,  hear,rat, rate,race, tear, ache, arch, chart, cheat, cheer, reach, react,  ……. Think of some more words if you can,.

 

Obstacles

Obstacles are a part and parcel of life. The greater the problems, the stronger you will become. It is essential to cultivate a positive attitude and go forward with optimism.

 

Hard work is the key to success.

The three D’s -Duty, Dedication and Discipline are integral to achieve the goal.