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प्रश्न
Find out more about the following scientist with the help of the internet.
Humphry Davy
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उत्तर
- Humphry Davy (1778-1829) was a British scientist.
- It was he who found out that the inhalation of nitrous oxide produced surprising results, it came to be known as the laughing gas.
- He was awarded a medal by Napoleon, and he identified the element iodine for the first time.
- He is remembered for his discoveries of sodium, potassium, calcium, magnesium, etc. He was awarded the Copley Medal, Rumford Medal, and Royal Medal.
संबंधित प्रश्न
Write what is implied in the following sentence.
Even then Davy did not have much hope for Faraday.
(What do the words 'even then' suggest?)
List the different gadgets and instruments mentioned in the passage. Find more information about them (at least 3), using the internet.
Find out more about the following scientist with the help of the internet.
Thomas Edison
- What would you like to learn about in your Science period?
- Have you ever tried to do an experiment on your own? If yes, tell me about it. If not, tell me why you’ve never tried.
- What would you like to learn about in your English classes?
Write as many uses of the following as you can. Form groups of four. Compare your lists. Make a long list by putting together the lists of all members.
- A cloth bag
- a wicker basket
- a glass bottle or jar
- a steel bowl
- a thick string or rope
Choose any one machine or device and prepare a short note about it. It should include
- The structure of the device
- How it works (functions)
- A labelled diagram
- One or two lines about when and how it evolved.
What is the meaning of:
Reading became his obsession?
What is the meaning of:
Electricity became a lifelong fascination?
Why do you think Faraday’s friend gave him a free ticket to Davy’s programme?
What actions and thoughts of Faraday show that he was inspired by Davy?
Guess the meaning of mentor.
An induction motor is a commonly used electrical machine. What examples of its use are given here?
Give one example to show that Faraday was a good pupil.
Guess the meaning of reverse engineer it.
Faraday kept a souvenir of his failure as a source of inspiration.
Why were Faraday’s drawings not accepted?
Does it mean they were wrong?
Try out the experiment of the iron filings and the magnet.
epitomises: is a perfect example of.
Find the following matter in the passage and copy the missing word.
One day he came across a book on ______.
Find the following matter in the passage and copy the missing word.
Faraday decided that ______ scientist - ______.
Find the following matter in the passage and copy the missing word.
Davy never believed ______ science ______.
Find the following matter in the passage and copy the missing word.
People started telling Davy that ______ discoveries, ______.
Find the following matter in the passage and copy the missing word.
He went on to prove that ______ filings;
Now complete the following sentence using your own word.
He never believed ______.
Now complete the following sentence using your own word.
People started telling ______ that ______.
Now complete the following sentence using your own word.
He went on to prove that ______.
Now complete the following sentence using your own word.
It was ______ who ______.
