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

How To Get Back The Super Qualities Of The Brain, Hey There,I Have a Very I...

Hey There,I Have a Very Important Question,A Friend of Mine Watched the Movie The Secret About One Year Ago...And Something Happened To Him,As He Always Knew His Purpouse and Was V

Electricity, why do we get shock when we touch an open wire?

why do we get shock when we touch an open wire?

Zoology, I need help with a few homework questions...We had a substitute, a...

I need help with a few homework questions...We had a substitute, and I didn''t get the chance to finish reading the chapter.

Elements of the system, What is an example of the elements of the systems

What is an example of the elements of the systems

Soil science.., how is the soil colloidal material look like when ion and c...

how is the soil colloidal material look like when ion and cation exchange capacity of the soil?

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

Define physiology of growth and development, Define Physiology of Growth an...

Define Physiology of Growth and Development Growth refers to 'increase in size' and development refers to 'maturation of function'. They are generally associated with each othe

What is the absorded dose to air, a. How many ion pairs are produced in 1 c...

a. How many ion pairs are produced in 1 cm 3 of air during an exposure of 100 mR? The density of air at STP is ρ = 1:293kg m -3 . What is the absorded dose to air? b. An thin w

Chemical reactivity, Chemical reactivity : The substances which react viol...

Chemical reactivity : The substances which react violently or produce flame on contact with water can be given suitable chemical treatment to convert them into nonreactive form be

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