Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Scientific and Technical Achievements of Bronze Age:
The major technical advance that accompanied the rise of cities was the discovery and use of metals, particularly copper and its alloy bronze. Simultaneously, trade between societies flourished and gave rise to better forms of transport. The wide range of services involved in the operations of a city gave rise to a qualitative change which marks the beginning of conscious science. This was possible, because this initial phase of development required that the practitioners of techniques and the priests who did only mental work solve problems together. Recording of numbers or quantities of goods, standardising their measures, counting and calculating, making of calendars etc. form the basis of quantitative science in the Bronze Age. We shall now study each of these features, in brief. The Use of Metals Human beings were attracted by shiny gold and copper which are found free in nature and used them originally as ornaments. Bits of metal have been found in necklaces and other ornaments of Stone Age. However, copper nuggets beaten to different shapes were not of much practical use as tools and weapons, as they were too soft. With the development of fire kilns needed for making pottery, copper ores which could be easily reduced were used to produce copper metal. Later, an alloy of copper and tin was discovered. It was harder and stronger than copper and could be cast into tools and weapons. Casting was done by pouring molten copper and tin mixture into vessels or "moulds". When the mixture was allowed to cool, it took the shape of the pot. Some of the tools thus made were found to be far superior to stone tools and weapons, and were easier to produce. The use of this new metal meant revolution in many techniques, such as carpentry, masonry, making tools, vessels, vases etc.
Question 1. Discuss the biological factors influencing radioactivity. 2. Explain the quality assurance of computed Tomography. 3. Write short notes on the following
1.) Imagine that you are a particle inside an ice cube. You were placed into a glass of lemonade to cool it down. The lemonade has now been drunk and you have been left in the glas
Explain maintaining the pH Balance You must be aware of the term pH. PH we know provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 i
Saponification value of fats and oils
how does lungs function
#question: Describe the factors which decide the broad area of Scientific activity ?
LASER stands for Light Amplification by Stimulated Emission of Radiation: It's a fairly long string of words. Well, don't let it stop you from reading further. What we wish t
If rate of evaporation affects the size of crystals that grow from solution allowed to evaporate at room temperature.
What are all the planets in our solar system?
In a unicellular organism, the interior region of the organism is no longer in contact with the external environment. Thus simple processes of diffusion, phagocytosis, exocyt
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd