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

Land use planning and management, Land Use Planning and Management: P...

Land Use Planning and Management: People see land everywhere and get an impression that plenty of it  is available. Besides,  they do not care how  it is being used, unless o

Explain the hypoxic hypoxia, Explain the Hypoxic Hypoxia It is a hypoxi...

Explain the Hypoxic Hypoxia It is a hypoxia resulting from defective oxygenation of the blood in the lungs. It is a problem in high altitudes where pO 2 of the arterial blood

Heart massage for restoring circulation, Heart Massage for Restoring Circul...

Heart Massage for Restoring Circulation : In cases of breathing failure, you should check that the casualty's heart is still beating. This is especially important with victims of

Explain pantothenic acid (vitamin b5), Pantothenic acid (vitamin B5) P...

Pantothenic acid (vitamin B5) Pantothenic acid, also  known  as vitamin B5, is essential to  all forms of  life. Pure pantothenic acid was  first isolated as its calcium salt

Determine the facts of clay soils and sandy soils, How do you explain the f...

How do you explain the fact that clay soils which commonly have higher pore space than sandy soils are often more poorly aerated than sandy soils. Clay soils have higher pore s

Catholic, What is the literal translation of the word catholic?

What is the literal translation of the word catholic?

Absorption of proteins, Absorption of Proteins Proteolytic enzymes brea...

Absorption of Proteins Proteolytic enzymes break  the dietary  Proteins and proteins  into amino acids or di-  and  tripeptides.  In  fact,  it  is  in  this  form  that the di

Explain the apnoea - histotoxic hypoxia, Explain the Apnoea Apnoea mean...

Explain the Apnoea Apnoea means cessation of breathing. Temporary apnoea may be seen in low carbon dioxide tension in blood. During swallowing, there is a temporary apnoea.

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