Belt derive used in golden era, Science

Belt-drive:

The beltdrive  is a mmpratively simpler device than gearing for transmission of power and for increasing or decreasing the speed of motion. Beltdrive came to India m  the fonn of  the spinning wheel. The spinning wheel quickened  the speed of  spinning by about six fold. This must have multed in reducing the prices of  yarn and, thus, of  cloth. The other improvement in the spinning wheel was the addition  of  crank handle 6uring the seventeenth century. The beltdrive was  extended  to the diamond cutting drill, by  the seventeenth century. Weaving Evidence of an improvement in weaving comes from a fifteenth century dictionary which describes  the foot-pedals used by a weaver to control speed. The addition of treadles to the loom facilitated  the use of feet by  the weaver for lifting alternately the heddles and freed hi3 hands to throw the shuttle to and fro (Fig.). This could more than double the rate of weaving.  

429_belt.png

By  the seventeenth century both methods of multicolour pattern dyeing, namely, the use of resist to confine colours to patterns and of mordant to take colours were used.  It was, perhaps, during the same century that direct block printing, a time-saving  technique as compared to painting, became popular in  India.  

 

2098_belt1.png

Posted Date: 9/27/2012 8:33:50 AM | Location : United States







Related Discussions:- Belt derive used in golden era, Assignment Help, Ask Question on Belt derive used in golden era, Get Answer, Expert's Help, Belt derive used in golden era Discussions

Write discussion on Belt derive used in golden era
Your posts are moderated
Related Questions
Decarboxylation:   Amino  acids  undergo  decarboxylation reaction, enzymatically or by  treatment with  heat,  acid  or alkali (barium hydroxide)  to form the corresponding amines

Explain the Vasomotor center - Feature of Medulla The vasomotor center is found in medulla. It controls diameter of the blood vessels especially the ones which have smooth musc

Frost in the classroom Frost can be made in the classroom by using a tall metal container like as a tin can. Pack the can with exchange layers of ice and salt, using about doub


1. The composition of solid waste from a residential community is as follows: Component Percent by weight Combustibles ---

We will first give a brief description of  the qocial and economic changes of  this period so  that developments in science can be seen in the proper perspective. Already, by  the

describe the factors which decide the broad area of scientific activity

what are the systems that are affected by asthma

Explain Mucous membranes - External Defence Mechanism Mucous membranes: The digestive, urinary, genital and respiratory tracts open out at one or both ends. They do not have a

Determine in brief about the Black soils These soils have been formed mainly under semi -arid conditions and are derived from a number of rock formations.  Basaltic trap is the