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Archive for the ‘sustainability’ category: Page 271

Jul 19, 2021

China unveils design for first waterless nuclear reactor

Posted by in categories: chemistry, engineering, nuclear energy, solar power, space travel, sustainability

CHINA’S NEW THORIUM-BASED NUCLEAR REACTOR is well situated for being adopted for Space applications.

China is slowly but steadily positioning itself to leap ahead of the US Space program. It is doing this without pomp and fanfare, and without the idea of a “space race,” simply based upon what it requires for its future.

1) Recent noteworthy progress on molten salt thorium reactors could be a key component of future Chinese space-worthiness. Originally designed by the USA’s Oak Ridge National Laboratory in the 1960’s, they were planned to be used for nuclear powered strategic bomber planes, before the nuclear submarine concept became adopted as more feasible. They were chosen because they can be miniaturized to the size of an aircraft. By the same token, they could conceivably be used in advanced atmospheric or space propulsion.

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Jul 18, 2021

Kenyan entrepreneur turns plastic waste into bricks, stronger than concrete

Posted by in categories: engineering, sustainability, transportation

Plastic waste, a material that can take centuries or more to disappear, is causing irreparable damage to the planet. At least 8 million tons of plastic end up in the ocean each year. In many cases, specifically in more developed countries, plastic waste is disposed of responsibly and sent to facilities to be sorted, recycled, or recovered. However, plastic waste generated in developing countries typically ends up in dumps or open, uncontrolled landfills — most of which eventually enter the ocean either through transport by wind or tides or through waterways such as rivers or wastewater. Now, many companies are recycling this waste into useful products, such as sportswear, affordable homes, electric cars, roads, etc. One of them is Gjenge Makers Ltd, a sustainable, alternative, affordable building products manufacturing company that transforms plastic waste into durable building materials. These include paving blocks, paving tiles, and manhole covers.


Nzambi Matee has used her engineering skills to develop the process that involved mixing recycled waste plastic and sand. Matee gets the wasted plastic from packaging factories for free, although she pays for the plastic she gets from other recyclers. The company workers take plastic waste, mix it with sand, and heat it up, with the resulting brick being five to seven times stronger than concrete.

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Jul 17, 2021

New Zealand drone company speeds pace of nation’s effort to plant a billion trees

Posted by in categories: drones, sustainability

New Zealand drone company considerably accelerates the pace of the nation’s program to plant a billion trees by 2028.

Jul 17, 2021

Scientists Are Now Transforming Saltwater Into Hydrogen Fuel

Posted by in categories: solar power, sustainability

Circa 2019


Thanks to Stanford researchers, there might be a new recipe for hydrogen fuel: saltwater, electrodes and solar power. The researchers have developed a proof-of-concept for separating hydrogen and oxygen gas from seawater via electricity. It’s far cheaper than the current methods, which rely on creating hydrogen fuel from purified water.

Breaking up a substance like water to create hydrogen and oxygen is called electrolysis and is a scientific technique centuries old. It was first codified by British scientific legend Michael Faraday, whose two laws of electrolysis from 1834 still guide scientists today. With a power source connecting to two water-based electrodes, scientists can get hydrogen bubbles to come out of an end called an cathode, while oxygen comes out of an end called an anode.

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Jul 16, 2021

See the road sign that’s about to take over America

Posted by in categories: sustainability, transportation

Electric vehicles are about to take over American roadways, which means there’s a prime opportunity to replace gas station signs with something better.

Jul 16, 2021

Coffee Prices Soar After Bad Harvests and Insatiable Demand

Posted by in categories: food, sustainability

Bad news for coffee lovers. Global warming will limit our coffee consumption.


Global coffee prices are climbing and threatening to drive up costs at the breakfast table as the world’s biggest coffee producer, Brazil, faces one of its worst droughts in almost a century.

Prices for arabica coffee beans—the main variety produced in Brazil—hit their highest level since 2016 last month. New York-traded arabica futures have risen over 18% in the past three months to $1.51 a pound. London-traded robusta—a stronger-tasting variety favored in instant coffee—has risen over 30% in the past three months, to $1749 a metric ton, a two-year high.

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Jul 16, 2021

Installing A Tesla Solar Roof — Review By The American Contractor Show

Posted by in categories: habitats, sustainability

“The American Contractor Show” has shared its review of the installation of a Tesla Solar Roof. The show is a series of episodes featuring contracting and this episode took a deep dive into the Tesla Solar Roof installation process. Davide Silverstein and American Home Contractors demonstrated just what it takes to install a Tesla Solar Roof. The episode includes a step-by-step look at the installation process.

David Silverstein from American Home Contractors takes the host of the American Contractors Show, John Dye, on a walk-through of a Tesla Solar Roof installation.

Jul 15, 2021

Researchers discover a new inorganic material with lowest thermal conductivity ever reported

Posted by in categories: particle physics, sustainability

A collaborative research team, led by the University of Liverpool, has discovered a new inorganic material with the lowest thermal conductivity ever reported. This discovery paves the way for the development of new thermoelectric materials that will be critical for a sustainable society.

Reported in the journal Science, this discovery represents a breakthrough in the control of heat flow at the atomic scale, achieved by materials design. It offers fundamental new insights into the management of energy. The new understanding will accelerate the development of new materials for converting waste heat to power and for the efficient use of fuels.

The research team, led by Professor Matt Rosseinsky at the University’s Department of Chemistry and Materials Innovation Factory and Dr. Jon Alaria at the University’s Department of Physics and Stephenson Institute for Renewable Energy, designed and synthesized the new material so that it combined two different arrangements of atoms that were each found to slow down the speed at which heat moves through the structure of a solid.

Jul 15, 2021

SpaceX: How Mars “spy satellite” creator tracked Elon Musk’s Tesla Roadster

Posted by in categories: Elon Musk, satellites, sustainability

An engineer who helped develop a camera for Mars has built a tool to track the most fascinating car in the Solar System.

Jul 15, 2021

Tesla has Powerwall backlog of 80,000 orders worth over $500 million

Posted by in categories: computing, Elon Musk, sustainability, transportation

Elon Musk confirmed that Tesla currently has a Powerwall backlog of 80000 orders, which is worth over $500 million, but it can’t ramp up production to meet that due to the global chip shortage.

Tesla has been production constrained with the Powerwall for a long time.

The demand has been strong in several markets, like the US and Australia, but production hasn’t been to catch up despite significant ramp-ups.