More than 13 million tonnes of plastic enter Australia’s waterways every year, and some experts believe by 2050 there will be more plastic pieces in the world’s oceans than fish. Meet Seabin, a device designed to collect plastic waste floating in coastal areas before it gets to open water and breaks down into harmful microplastics.
A new seismic-resistant, fibre-reinforced concrete developed at the University of British Columbia will see its first real-life application this fall as part of the seismic retrofit of a Vancouver elementary school.
The material is engineered at the molecular scale to be strong, malleable, and ductile, similar to steel—capable of dramatically enhancing the earthquake resistance of a seismically vulnerable structure when applied as a thin coating on the surfaces.
Researchers subjected the material, called eco-friendly ductile cementitious composite (EDCC), to earthquake simulation tests using intensities as high as the magnitude 9.0–9.1 earthquake that struck Tohoku, Japan in 2011.
With funding from the international Green Climate Fund, Karachi will launch a zero-emission Green Bus Rapid Transit (BRT) network, with 200 buses fuelled by bio-methane.
The cheap, clean bus network will cater for 320,000 passengers daily, and will reduce planet-warming emissions by 2.6 million tonnes of carbon dioxide equivalent over 30 years, according to project documents.
The Green Climate Fund, set up under U.N. climate talks to provide finance to developing countries to help them grow cleanly and adapt to a warming climate, will provide $49 million for the Karachi project out of a total cost of $583.5 million.
Linear friction welding is a process that uses heat from friction to weld things. It can join materials extremely fast. It can take as little as a second to complete.
Why else it this method used?
In addition to speed, there are a few other benefits. Very little prep is needed. Surfaces do not need to be thoroughly treated beforehand.
The method produces no harmful fumes. Unlike traditional welding methods
How friction welding is done?
The materials are placed inside the welding machine. They’re then tightly pushed together. One material moves quickly against the other. This creates a lot of friction. The resulting heat joins the parts together. It’s the preferred method for assembly of turbine engines. But it is also used to build cars, ships and trains.
David Christian, founder of Evoware certainly thinks so. Evoware is a socially responsible enterprise that elevates an environmentally friendly lifestyle and provides innovative value to urban society. Their mission is to create innovative solutions from seaweed to solve plastic waste issue, while increasing the livelihood of Indonesia’s seaweed farmers.
Why they do what they do
Indonesia is the world’s second biggest plastic waste contributor to the ocean
90% of plastic waste go into the ocean; 70% of that waste comes from food and beverage packaging
There will be more plastic than fish in the sea by 2050
25% of fish in Indonesian market are contaminated by plastic
Seaweed Farmer Issues
A large volume of seaweed production is not used/oversupply
Most seaweed farmers are poor due to a long marketing chain and loan sharks
5 of the 6 poorest provinces in Indonesia are actually producing seaweed
A double-curved concrete shell made with a 3D-knitted formwork in a collaboration between Zaha Hadid Architects and ETH Zurich has gone on display in Mexico City.
KnitCret is a new 3D-knitted textile system for creating curving concrete structures, without the need for expensive and time-consuming moulds.
The colourful pavilion is called KnitCandela in homage to the work of Spanish-Mexican architect and engineer Félix Candela, who created dramatic curved concrete shells in his buildings such as the Los Manantiales Restaurant in 1958.
Over two miles of yarn was knitted into four strips of between 15 and 26 metres in just 36 hours using a digital fabrication technique, then flown over from Switzerland to Mexico in suitcases.