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

Explain the Water balance function of the kidney, Explain the Water balance...

Explain the Water balance function of the kidney Water is one of the most important constituent in the daily diet. You are already aware of the roles it plays in our body. Main

Six forms of prejudice, Name the six forms of prejudice that Brislin discus...

Name the six forms of prejudice that Brislin discusses and illustrate each with a South Africa example; 1.  Red-neck racism - a typical form of this prejudice is Julius Malema

Viruses, diseases caused by viruses?

diseases caused by viruses?

Check-in sequences for treatment of the spillage site , Check-in Sequences ...

Check-in Sequences At the time of opening the lab, the following need to be kept in mind: 1.  Ensure that the door locks have not been tampered. If any tampering is detected

Explain rancidity, Rancidity:- Formation  of aldehyde due  to  oxidatio...

Rancidity:- Formation  of aldehyde due  to  oxidation  of  unsaturated glycerides.

Explain the digestion of food, Explain the Digestion of Food Salivary a...

Explain the Digestion of Food Salivary amylase or ptyalin acts on cooked starches (polysaccharides) and changes them into maltose as shown herewith. Boiled starch → soluble

Mixed reality, #i do not know how to write assignment on it..

#i do not know how to write assignment on it..

Factor for hypothalamic control of anterior pituitary gland, Define Factors...

Define Factors for hypothalamic control of anterior pituitary gland Thyrotropin Releasing Factor (TRF) which causes release of TSH. Corticotropin Releasing Factor (CRF

Explain transport - functions of plasma proteins, Explain Transport - Funct...

Explain Transport - Functions of Plasma Proteins Hormones and several other small molecules travelling in the plasma would themselves get filtered in the renal glomeruli and ge

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