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प्रश्न
Find out more about the following scientist with the help of the internet.
Thomas Edison
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उत्तर
- Thomas Alva Edison (1847-1931) an American inventor and businessman, has been described as America's greatest inventor.
- He invented the photograph in 1877 because of which he came to be known as 'The Wizard of Monto Park'. Thomas Edison had hearing problems during his childhood which persisted.
- The phonograph was the first machine that could record the sound of someone's voice and play it back. Edison recited the nursery rhyme 'Mary had a little lamb' and the phonograph played the words back to him.
- This was invented by a man whose hearing was poor and thought himself as deaf. It was Edison who designed a system of power plants.
- He has got 1093 patents to his credit. Many awards to his credit. Some of them are Franklin Medal, Albert Medal, Technical Grammy Award, etc.
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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?)
Write what is implied in the following sentence.
People started telling Davy that of all his discoveries, the best was Faraday himself.
(What does it suggest about Davy’s work?)
Break the passage into convenient smaller sections.
Give sub-headings or titles to each section.
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.
Humphry Davy
- 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?
Think of as many examples of the following as you can within five minutes and write them in the appropriate column.
| Type of machine | Examples |
| Simple machines that are operated by hand |
|
| Machines that run on electricity | |
| Electronic devices |
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.
Before you read further, guess what the passage is about.
What is the meaning of:
Reading became his obsession?
Why do you think Faraday’s friend gave him a free ticket to Davy’s programme?
What was the subject of Davy’s lecture?
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.
Write the idea behind an electrical generator.
Why were Faraday’s drawings not accepted?
Does it mean they were wrong?
Find the following matter in the passage and copy the missing word.
When he was twelve, ______ school ______.
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.
He handed him a piece of Bavarian glass, which ______ microscopes ______.
Find the following matter in the passage and copy the missing word.
He went on to prove that ______ filings;
Find the following matter in the passage and copy the missing word.
It was Maxwell who ______ equations ______.
Now complete the following sentence using your own word.
One day he came across a book on ______.
Now complete the following sentence using your own word.
He decided that ______.
Now complete the following sentence using your own words.
He handed him ______ which ______.
