Learn more about how countries are fighting coronavirus: https://bit.ly/2TW9yxS

As the technology to map, reproduce and tinker with DNA becomes cheap and accessible enough for a citizen lab to open in Sydney, regulators are worried about the potential for engineered viruses or super soldiers. Margot O’Neill investigates for Lateline. Read more here: http://ab.co/1DMsuEO

3D printing is not just a cool technology for rapid prototyping, modelling and specialist one-off products. It is a fundamental building block of the ‘4th industrial revolution’ that has the potential to transform the way in which production and consumption are connected. This talk explores how this is happening using examples from medical prosthetics, aerospace, disaster relief, and education.

Bridges built over water are marvels of engineering no matter how shallow or deep the water may be. But how exactly are these bridges built, particularly over deep water? It turns out there are three main techniques for the construction of such bridges and they are battered piles, cofferdams, and caissons.

Here are some of this decade’s massive clean energy projects

Sanivation is currently operating in Kenya, placing mobile toilets at households and sending a collection agent to pick up the buckets of waste twice a week. The waste is then taken to the Sanivation center, where a solar concentrator heats the biosolids over 70 degrees Celsius to remove pathogens in the waste. The waste is then further dehydrated in an agglomerator, and turned into charcoal briquettes that are used as fuel for burning.

Professor Veena Sahajwalla directs the Centre for Sustainable Materials Research and Technology (SMaRT) at UNSW Australia, delivering scientific and engineering advances in sustainability of materials and associated processes in collaboration with industry. Veena is revolutionising recycling science to enable global industries to safely utilise toxic and complex wastes as low-cost alternatives to virgin raw materials and fossil fuels. As Founding Director of UNSW’s Centre for Sustainable Materials Research and Technology, Veena and her team are working closely with industry partners to deliver the new science, processes and technologies that will drive the redirection of many of the world’s most challenging waste streams away from landfills and back into production; simultaneously reducing costs to alleviating pressures on the environment.

In Denmark, every new wind farm must be partly owned by the people.

Over half of the world’s GDP is highly or moderately dependent on nature.

Source: World Economic Forum

A beautiful floating bridge at a scenic area in Enshi city, central China’s Hubei province has attracted many tourists. Its eye-catching view creates undulating waves as cars pass the bridge.