Ship-building, Science

Assignment Help:

Ship-building:

The shipbuilding industry in  the seventeenth century. witnessed far-reaching changes that mainly resulted from imitating European techniques. The Indian sea-going ships, until the first half of the seventeenth century, were called 'junks' by the Europeans. These were very large and supported  immense main sails. In some ways, the imitations even improved upon the originals. The Indian method of riveting planks one to the other gave much greater strength than simple caulking used by European ship-builders. A lime compound dabbed on planks of Indian ships provided an extraordinarily  firm protection against sea-weeds. However,  it was the instruments used on ship where India  lagged much behind Europe. Indians failed to fashion modem navigation instruments. The main  instrument used on Indian ships still remained  the astrolabe. Later,  in the seventeenth century, European captains and navigators were employed on Indian ships, and they naturally used telescopes, quadrants, and other instruments  that were imported from Europe.  

Metal Screw:

One important device that had a great potential in the manufacture of precision instruments and machinery was the metal screw. It came into use in Europe from the middle of the fifteenth century for holding metal pieces together. Its use was of great importance in mechanical clocks. The screw began  to be used in  India by the second half of the seventeenth century and even then  it was a  less efficient version of the European screw. The grooves were not cut, but wires were soldered around the nail to create the semblance of grooves. This had to be done owing to the absence of  lathes which were used in Europe for cutting grooves. Dueto this limitation, the Indian screw did not fit properly. 

 

 


Related Discussions:- Ship-building

What is the earth made of, What is the earth made of? The overall compo...

What is the earth made of? The overall composition of the Earth, in terms of elemental composition is as follows:   Iron 34.6% Oxygen 29.5% Magnesium 12.7% Silic

Explain the submucous layer, Explain the Submucous Layer This layer con...

Explain the Submucous Layer This layer consists of loose areolar connective tissue. There are lymph vessels, plexuses of blood vessels and nerves. The nerve plexus is meissner'

Explain the inulin clearance test, Explain the Inulin Clearance Test In...

Explain the Inulin Clearance Test Inulin is a complex polysaccharide found in specific plant roots. In the test, a fixed amount of inulin is infused into the blood at a constan

Antibody mediated immune system (amis), Antibody Mediated Immune System (AM...

Antibody Mediated Immune System (AMIS) In antibody-mediated immunity, the antibodies dissolved in blood, lymph and other body fluids bi nd the antigen and trigger a response to

How is our atmosphere different from the atmospheres?, How is our atmospher...

How is our atmosphere different from the atmospheres on Venus and Mars? Earth's atmosphere is different from those of Venus and Mars. This difference lies essentially in their c

Opening the airway for unconscious casualties, Opening the Airway If a ...

Opening the Airway If a casualty has stopped breathing, first of all we should clear the airway of the victim, so that he/she could inhale fresh air. The procedure is as follow

Define psychology, QUESTION (A) Define Psychology (B) Why is psycholo...

QUESTION (A) Define Psychology (B) Why is psychology considered a science? (C) (i) Clinical and Counselling psychology sound similar. How do they differ? (ii) Discuss a

Science 9.., Which "spheres" are interacting when water evaporates from pla...

Which "spheres" are interacting when water evaporates from plants? Select all that apply.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd