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प्रश्न
Write the information about the various invention during the renaissance period.
Metallurgy
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उत्तर
England had a number of iron mines but it was necessary to advance the technique of smelting iron in order to acquire purified iron from it. Gradually the fuel for iron furnaces was replaced from wood to coal. It facilitated the creation of furnaces that could attain much higher temperatures resulting in increased production of iron. Later, special machines were made to keep the furnaces burning at a set temperature and to maintain their aeration. In 1865 the process of producing steel from molten iron was invented and the nature of the iron industry underwent a major transformation. At about the same time, a method was developed to pour the molten metal into casts for making iron bars (for example, rails).
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संबंधित प्रश्न
In 1440 ______ started the printing press.
In 1609 ______ made a modified telescope.
Write the name of a historical place/person/event:
The treatise was written by Varahmihir - ______
The Italian traveler, ______, introduced China and other Asian countries to Europe.
Find the incorrect pair from group ‘B’, and write the corrected ones.
| Group ‘A’ | Group ‘B’ |
| 1. Cylinder or roller printing | Thomas Bell |
| 2. Steam Engine | James Watt |
| 3. Clermont steamboat | Robert Fulton |
| 4. Printing Press | Macro Polo |
Write the Name of the Historical place/person/event.
The highest authority of the Catholic church - ______
Explain the statement with reason.
The invention of printing is the gift of the renaissance period to the world.
Write the information about the various invention during the renaissance period.
Use of Machines
Write Name:
Manufacturer of improved telescopes in 1609.
In 1609, ______ prepared a more sophisticated telescope, which enabled the further research in the field of astronomy.
