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Archive for the ‘sustainability’ category: Page 364

May 5, 2020

Visualising algae-eating viruses from space

Posted by in categories: biological, climatology, sustainability

Algae isn’t just found in your garden pond or local river. Sometimes it explodes into vast “blooms” far out to sea, that can be the size of a small country. Such algal blooms can match even a rainforest at taking carbon out of the air. And then, in just a week or two, they are gone – sometimes consumed by viruses.

Given the scale of blooms and their vital role in both marine ecology and climate regulation we must know more about these viruses. Research conducted with our Weizmann Institute colleague Yoav Lehahn and others and published in the journal Current Biology, is the first attempt to quantify the affect of viruses on large scale algal blooms.

Algae in this context refers to tiny sea organisms known as phytoplankton which exist right at the bottom of the marine food web, providing the ultimate source of all organic matter in the sea. They do this by consuming carbon dioxide during photosynthesis, “fixing” this carbon into organic matter (themselves) in the same way trees take carbon out of the air.

May 4, 2020

Study reveals single-step strategy for recycling used nuclear fuel

Posted by in categories: chemistry, engineering, nuclear energy, sustainability

A typical nuclear reactor uses only a small fraction of its fuel rod to produce power before the energy-generating reaction naturally terminates. What is left behind is an assortment of radioactive elements, including unused fuel, that are disposed of as nuclear waste in the United States. Although certain elements recycled from waste can be used for powering newer generations of nuclear reactors, extracting leftover fuel in a way that prevents possible misuse is an ongoing challenge.

Now, Texas A&M University engineering researchers have devised a simple, proliferation-resistant approach for separating out different components of . The one-step chemical reaction, described in the February issue of the journal Industrial & Engineering Chemistry Research, results in the formation of crystals containing all of the leftover nuclear elements distributed uniformly.

The researchers also noted that the simplicity of their recycling approach makes the translation from lab bench to industry feasible.

May 4, 2020

This Solar Panel-Like Device Can Generate Electricity in the Dark

Posted by in categories: solar power, sustainability

But a new invention could allow us to continue generating renewable energy even in the dark, the New York Times reports. Electrical engineer Aaswath Raman, at the University of California in LA, has come up with a device that can harness energy from a dark night sky to power an LED — hinting at a new frontier in renewable energy.

Power of the Dark Side

Raman’s findings were published in the journal Joule today. His device — made from easy-to-find materials including Styrofoam and off-the-shelf aluminum parts — takes advantage of radiative cooling, the process that allows objects to release heat after the Sun sets.

May 3, 2020

Algae Water Purification

Posted by in categories: biological, climatology, sustainability

This can be good to purify the oceans and lakes.


Grow algae to reclaim water! Algae feed on the nutrients in wastewater, effectively purifying the water and producing oxygen during the process. Sunlight and LED lighting help the organisms to feed and grow, therefore our algae generators stand in the daylight filled Third Climate Zone. Water slowly recirculates through the six algae tubes, each of which has a steel base containing zeolite, a mineral that acts as a microbial filter, absorbing microorganisms that are not otherwise digested by the algae. The algae generators at Green Solution House are an important element of our on-site biological water purification system. The entire system can process 500 liters of water a day, which is used for irrigating the green wall and gardens and has the potential to be used for flushing public toilets in the building. The water cleaned by the algae is separated and further purified by UV light to reach drinking water quality.

Who’s behind it: Rambøll.

Continue reading “Algae Water Purification” »

May 3, 2020

Volkswagen plans to launch a family of affordable electric cars under $22,000

Posted by in categories: sustainability, transportation

Adapting the architecture for small city cars in a cost-efficient way is proving to be challenging because of the need to strip out a third of the costs compared with the ID.3.

Engineers have looked at everything from smaller electric motors to different battery module configurations to give the small EVs the high standard of crash protection that will be expected by customers.

Continue reading “Volkswagen plans to launch a family of affordable electric cars under $22,000” »

May 3, 2020

Tesla applies to become UK electricity provider

Posted by in categories: energy, sustainability, transportation

The US firm, known for its electric vehicles, also has operations in battery energy storage and solar panel manufacturing.

May 3, 2020

The Electric Vehicle Revolution Is Finally Hitting the U.S. Army

Posted by in categories: nuclear energy, sustainability, transportation

The JLTV is the successor to the Humvee, and the Army plans to buy at least 50,000 in the coming decades.
The Army, concerned that civilian adoption of electric vehicles could leave it vulnerable, is looking into making the JLTV itself an EV.
An electric JLTV would reduce the need for diesel fuel at remote outposts, with power provided by solar or nuclear energy.

#USArmy
#USmilitary
#MilitaryNews

May 2, 2020

New self-forming membrane to protect our environment

Posted by in categories: engineering, sustainability

A new class of self-forming membrane to separate carbon dioxide from a mixture of gases has been developed by Newcastle University researchers.

Operating like a coffee filter, it lets harmless gases, such as nitrogen, exit into the atmosphere and then the can be processed.

The team believe that the system may be applicable for use in dioxide separation processes, either to protect the environment or in reaction engineering.

May 1, 2020

Can Electric Cars on the Highway Emulate Plane-to-Plane Refueling?

Posted by in categories: military, sustainability

Jet fighters can’t carry a huge tank of fuel because it would slow them down. Instead they have recourse to air-to-air refueling, using massive tanker planes as their gas stations. If electric vehicles could pull off the same kind of peer-to-peer charging scheme it could eliminate range phobia and speed the adoption of EVs.


On-the-road peer-to-peer charging depends on steerable booms to make the connection.

May 1, 2020

Musk tweet knocks $14bn off Tesla market value

Posted by in categories: Elon Musk, finance, law, sustainability, transportation

Elon Musk tweeted a complaint about Tesla’s share price that wiped $14bn off the company’s stock market value on Friday morning.

The seven-word tweet was the latest controversial outburst from the outspoken chief executive, whose outpourings on Twitter have landed him in hot water before. An incorrect claim in the middle of 2018 that he was close to a buyout of Tesla led to a complaint from the US Department of Justice and a settlement that involved Mr Musk agreeing not to issue market-moving tweets in future without first clearing them with his company’s legal department.

Tesla did not immediately confirm whether Mr Musk’s tweet had been given legal clearance, and did not respond to a question about whether the company currently has a general counsel. Tesla lost three general counsels last year, one of them quitting after only two months.