The Concept of Green Building

Green Buildings are Eco Friendly StructuresWhen the pre historic man constructed a hut for the first time using bamboo trees and coconut leaves to protect himself from sun and rain, he was starting to exploit nature for his humble needs. Apart from killing...

read more...

New Green-Concrete Process Combines Seawater, Flue Gas

(Las Vegas, Nevada) -- Cement scientist Brent Constantz wants concrete to be the"hero" that cleans up dirty coal. "The reality is, coal is not going away," he says. "Weneed to meet the world’s power demands without emitting more carbon." His answer?...

read more...

History of a Dam

A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific...

read more...

Moveable Bridge

A moveable bridge is a bridge that moves to allow passage for (usually) boats or barges. By making the bridge moveable it may be made low, which avoids the expense of high piers and long approaches, greatly reducing the cost of the bridge. The principal...

read more...

Venice versus The Sea

Venice versus The SeaThe Venitians put down roots-on a cluster of islands in a lagoon at the north end of the Adriatic Sea-by driving alder and oak piles into the sandy ground. atop these foundations they built homes and palaces and began a battle against...

read more...

Buoyancy Archimedes

Some objects, when placed in water, float, while others sink, and still others neither float nor sink. This is a function of buoyancy. We call objects that float, positively buoyant. Objects that sink are called negatively buoyant. We refer to object...

read more...

Cremona Diagram

The Cremona diagram is a graphical method used in statics of trusses to determine the forces in members (graphic statics). The method was created by the Italian mathematician Luigi Cremona.In the Cremona method, first the external forces and reactions...

read more...

Full Tilt of Pisa's Leaning Towers

Full Tilt of Pisa's leaning towers - yes, there are several-the famous one is the least likely to people. That's because an 11-year restoration effort, involving three years of painstaking soil removal, has successfully steadied the precariously poised...

read more...