Mechanics in iron age, Science

Assignment Help:

Mechanics:

Another hnch  of  science which is, perhaps, the greatest contribution of Greek civilisation is mechanics. Mechanics developed out of  the necessities of  imgation, moving of heavy bodies, ship-building  and making military equipment with known tools and methods. As the invading armies of Alexander came in contact with the craftsmen of  the iniddleeastem countries, a number of  inventions such as the pulley, windlass and screw came into use and were  improved upon (Fig.). Archimedes (287-212 B.C.) aided this process of building machines by his ideas of forces having  to balance each other to keep a body static (at rest). And his contribution  to the study of floating bodies and hydrostatics is useful even today. Fig.:  Some mechanical devices  used  in Greece:  a) windlass and pulley for drawing water fran a well; b) crass-section of a water-raising qrew designed by Archimedes. widely used for imgation. Strip  of wqal wm wrapped in a spiral on the edge of a round wooden bedm. This was then  encased in boards. When placed  in water and spun,  it caused the water to climb the spiral and gush out.  

2360_mechanics in iron age.png


Related Discussions:- Mechanics in iron age

Determine about the bicarbonates, Determine about the Bicarbonates Bica...

Determine about the Bicarbonates Bicarbonates are highly soluble, Ca(HCO3)2 goes into solution. Further,  stronger acids, like nitric a nd sulphuric acid present  in soils thro

How do microbes enter our body?, How do Microbes Enter Our Body? You ha...

How do Microbes Enter Our Body? You have learnt that microbes exist virtually everywhere,  and hence our body is constantly exposed to them. They gain access  to our body throu

Germinating pollen grains, Germinating pollen grains Apparatus Used-Mak...

Germinating pollen grains Apparatus Used-Make a strong sugar solution and place it in a shallow dish like a saucer or Circular  Plate. Shake pollen from several Different kinds

LP, WHAT ARE THE APPLICATIONS OF LP

WHAT ARE THE APPLICATIONS OF LP

Disposal of chemical wastes, Disposal of Chemical Wastes : We shall deal w...

Disposal of Chemical Wastes : We shall deal with some commonly occurring chemical wastes. If you need to know more details covering the disposal of a wide range of chemicals, you

Social role of communication, Social Role of Communication: Social  r...

Social Role of Communication: Social  relevance of communication follows from the economic and political role of communication. We, in this country, have often talked about u

Sun, how much far sun from earth

how much far sun from earth

History ofScience, Describe the factors which decide the broad area of Scie...

Describe the factors which decide the broad area of Scientific activity.

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