The pressure on the environment of building during the past 5000 years can be observed clearly from the air. In a recent lecture at the Society of Chemical Industry (SCI), aerial photographer and concrete specialist Christopher Stanley illustrated the evolution of construction and its lasting impact, from stone circles to skyscrapers.
Stanley’s lecture ‘Managing the environment: a perspective from land, air and sea’ followed the presentation of the 2002 SCI Environment Medal in recognition of his contributions to improving the built environment. A Fellow of the Institute of Concrete Technology, Hong Kong, Christopher Stanley identified the constraints caused by environmental concerns on quarrying and aggregate supplies in the region. Previously, waste concrete from demolitions was just tipped into Hong Kong bay, but there is now a move to crush concrete and reuse it as an aggregate in new building work.
Stanley explained that the development of communities, from hamlets to towns to the modern metropolis, has left its mark on the environment. The advent of new building materials and the change in social patterns within modern developments has also altered the environments in which people live and work.
Kelly Quigley | alphagalileo
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Heavy construction machinery is the focus of Oak Ridge National Laboratory’s latest advance in additive manufacturing research. With industry partners and university students, ORNL researchers are designing and producing the world’s first 3D printed excavator, a prototype that will leverage large-scale AM technologies and explore the feasibility of printing with metal alloys.
Increasing the size and speed of metal-based 3D printing techniques, using low-cost alloys like steel and aluminum, could create new industrial applications...
Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of light metals.
Scientists at the University of Stuttgart have now developed two new process variants that will considerably expand the areas of application for friction stir welding.
Technologie-Lizenz-Büro (TLB) GmbH supports the University of Stuttgart in patenting and marketing its innovations.
Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of...
Optical quantum computers can revolutionize computer technology. A team of researchers led by scientists from Münster University and KIT now succeeded in putting a quantum optical experimental set-up onto a chip. In doing so, they have met one of the requirements for making it possible to use photonic circuits for optical quantum computers.
Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast...
The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.
“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...
With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.
Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...
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