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Archive for the ‘energy’ category: Page 181

Aug 19, 2019

Three New US Patents for Solidia Technologies’ CO2-cured Concrete Advances the Performance and Sustainability of Building Materials

Posted by in categories: energy, sustainability

Solidia’s systems offer superior products that address the cement industry’s goal of reducing its carbon emissions, which contribute 3 to 5% of global CO2 pollution. Solidia’s patented processes start with an energy-saving, sustainable cement. Concrete made with this cement is then cured with CO2 instead of water. Together, the sustainable cement and CO2-cured concrete reduce the carbon footprint of cement and concrete by up to 70%. Additionally, up to 100% of the water used in concrete production can be recovered and recycled.


The U.S. Patent and Trademark Office issued three patents covering processes and products manufactured using Solidia Technologies‘cement and carbon-curing technology. The patents extend the range of applications for Solidia’s processes to include hollow core, pervious and aerated concrete.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20190516006022/en/

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Aug 18, 2019

Terraforming Mars in 50 Years with Large Orbital Mirrors, Bacteria and Factories

Posted by in categories: Elon Musk, energy, engineering, environmental, space

The McKay-Zubrin plan for terraforming Mars in 50 years was cited by Elon Musk.

Orbital mirrors with 100 km radius are required to vaporize the CO2 in the south polar cap. If manufactured of solar sail-like material, such mirrors would have a mass on the order of 200,000 tonnes. If manufactured in space out of asteroidal or Martian moon material, about 120 MWe-years of energy would be needed to produce the required aluminum.

The use of orbiting mirrors is another way for hydrosphere activation. For example, if the 125 km radius reflector discussed earlier for use in vaporizing the pole were to concentrate its power on a smaller region, 27 TW would be available to melt lakes or volatilize nitrate beds. This is triple the power available from the impact of a 10 billion tonne asteroid per year, and in all probability would be far more controllable. A single such mirror could drive vast amounts of water out of the permafrost and into the nascent Martian ecosystem very quickly. Thus while the engineering of such mirrors may be somewhat grandiose, the benefits to terraforming of being able to wield tens of TW of power in a controllable way would be huge.

Aug 17, 2019

The Rasa: A Hydrogen Powered Car That Emits Water Instead Of Carbon Dioxide

Posted by in categories: energy, transportation

A small company in Wales is reinventing clean motoring with a handmade ecological car, the Rasa, powered by fuel cells and emits water rather than CO2.

Aug 17, 2019

This Hydrogen-Powered Plane Can Fly 20 Passengers Up to 500 Miles

Posted by in categories: energy, transportation

In the U.S., air travel accounts for about a third of all CO2 emissions. A startup called ZeroAvia wants to clean things up in a big way.

ZeroAvia recently emerged from stealth with a zero-emission powertrain for small aircraft. It’s electric, but there are no big, bulky batteries involved. ZeroAvia opted for compressed hydrogen instead.

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Aug 15, 2019

This car built by college students gets 2,713 miles per gallon

Posted by in categories: energy, transportation

Imagine making the 2,710-mile trip from Philadelphia to Los Angeles using just one gallon of gas.

You might look silly doing it, but students from Université Laval, in Quebec, have theoretically made that outlandish trip possible with their prototype gasoline-powered car that gets 2,713.1 miles per gallon.

The Laval team took home the big prize at this year’s Shell Eco-marathon Americas, a competition in which university students design a prototype car using various fuels, from gasoline to hydrogen fuel cells, in an attempt to maximize efficiency on a Detroit, Michigan test track.

Aug 15, 2019

Generative Design: Alien Parts from Natural Evolution

Posted by in categories: 3D printing, energy, evolution, mathematics

We’re only a handful of months away from the year 2020, and with the way parts look and tech acts, it finally feels like we’re entering the future. It’s a future crafted by sophisticated 3D printers and machining centers, using materials provided by global-reaching supply chains and connected to an exponential rate of new superpowered gadgets. Nowadays, there’s really no reason to think any manufacturing feat is impossible. If something doesn’t exist, it’s just that we haven’t figured it out yet.

And this futuristic techtopia brimming with potential wouldn’t be possible if not for engineers—those dedicated, uber-creative folks plotting such a course, continuously improving the world around through the super power of… math.

Mathematics has been the indispensable fuel to make the impossible possible since at least the ancient Egyptians more than four thousand years ago. The Great Pyramid of Giza is the world’s oldest monument to its power. Amazingly, its geometrical elegance was calculated on papyrus scrolls, most of which have turned to dust long ago. Yet the universal language of math still speaks through its dimensions. And it will continue to do so for time immemorial.

Aug 14, 2019

Priority to US33586481A

Posted by in categories: energy, innovation

The invention is an improved piston engine, either two stroke or four stroke. In one, two stroke, one cylinder embodiment, the improvement comprises two springs connecting between the piston and the base of the piston. These springs are relatively relaxed when the crank is at top dead center. Then during the power/intake stroke, some of the fuel’s energy is delivered to the crankshaft and some is used to compress the springs. The stored energy in the springs is delivered to the crankshaft during the exhaust/compression stroke while the springs return to their relatively relaxed condition. As a result, energy is delivered to the crankshaft during both strokes of the cycle, and the engine runs smooth.

In one, four stroke, two cylinder embodiment, each cylinder has springs as described above, the cranks of each cylinder are aligned, and the cam sets one cylinder in the power stroke while the other is in the intake stroke. As a result, the engine runs smooth because energy is delivered to the crankshaft during all four strokes of the cycle, during two of the strokes by the burning fuel and during the other two by the release of energy in the springs. In both embodiments, a heavy crankshaft is not needed because of the more uniform power delivery.

Aug 14, 2019

HET electric motor massively boosts power, torque and efficiency, reduces weight and complexity

Posted by in category: energy

A Texas-based startup has raised US$4.5 million in seed funding to develop and commercialize a remarkable electric motor technology. The father/son team claims the design can massively reduce the size and complexity of electric powertrains while also significantly boosting efficiency and doubling the torque output.

Aug 14, 2019

One giant leap for Indian cinema: how Bollywood embraced sci-fi

Posted by in categories: energy, entertainment, space

With these high profile missions to the moon and Mars, sci-fi is set to become a Bollywood staple. “The Indian audience, especially the youth segment, now constantly seeks newer themes and stories,” says Vikram Malhotra, CEO of Abundantia Entertainment, one of India’s biggest production companies. “There has been so much talk and discussion about India’s space programmes and the achievements of our scientists that even the common man now wants to know more about this fascinating world. And on the big screen.”


In 2014, India sent the Mars Orbiter Mission into space, and became the first country to send a satellite to orbit the planet at its first attempt – putting its much richer regional rival China in the shade as it became the first Asian nation to get to the red planet. The project was notable for being led by a team of female scientists; as is India’s second lunar probe, Chandrayaan-2 (from the Sanskrit for “moon craft”), which was launched last month and is due to land on the moon in early September. And as the country establishes itself as a space power, Indians have developed an appetite for sci-fi themes in its cinema.

The patriotic outburst that followed the Mars mission has fuelled the latest example of Indian space cinema: Mission Mangal (Sanskrit for Mars), a fictionalised account of the Orbiter Mission. Starring and produced by Bollywood actor Akshay Kumar, it is due for release on 15 August, India’s Independence Day. “I would follow the news about India’s space missions and feel proud of what we were achieving,” says Kumar. “But through Mission Mangal I guess you could say I have an insider’s perspective.”

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Aug 8, 2019

A key piece to understanding how quantum gravity affects low-energy physics

Posted by in categories: energy, quantum physics

Researchers have, for the first time, identified the sufficient and necessary conditions that the low-energy limit of quantum gravity theories must satisfy to preserve the main features of the Unruh effect.