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!
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.
Water Resources: Water, as you know, is the most essential component of life. Our water resources are limited, though apparently, water is available in an abundant quantity.
Systems view of life: Evolution has given rise to various types of life forms from single celled bacteria to organisms as complex as a human being. It may interest you to know
how to overcome river in chain surveying
Hazard Identification : Each United Nations hazard class (with the exception of class 9) has a distinctive diamond shaped label bearing a pictogram for quick hazard recognition. F
Describe the factors which decide the broad area of scientific activity?
Aquestion #Minimum 100 words accepted#
Explain Nervous Phase of Pancreatic Secretion Nervous phase: When stomach secretes gastric juice in cephalic phase and gastric phase, nerve impulses are simultaneously transmit
Temperature affects the _____ of sound waves !?
Magma that reached the Earths surface is known as: Lava
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