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‘Star in a jar’ could lead to limitless fusion energy

‘Star in a jar’ could lead to limitless fusion energy | human rights for a more sustainable life | Scoop.it

Physicists at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL)* are building a “star in a jar” — a miniature version of the how our Sun creates energy through fusion. It could provide humankind with near limitless energy, ending dependence on fossil fuels for generating electricity — without contributing greenhouse gases that warm the Earth, and with no long-term radioactive waste.

 

But that requires a “jar” that can contain superhot plasma — and is low-cost enough to be built around the world. A model for such a “jar,” or fusion device, already exists in experimental form: the tokamak, or fusion reactor. Invented in the 1950s by Soviet physicists, it’s a device that uses a powerful magnetic field to confine plasma (superhot charged gas) in the shape of a torus.

 

There are many experimental tokamaks currently in operation, but they all face physics challenges, the PPPL physicists explain. “For example, they must control the turbulence that arises when superhot plasma particles are subjected to powerful electromagnetic fields. They must also carefully control how the plasma particles interact with the surrounding walls to avoid possible disruptions that can halt fusion reactions if the plasma becomes too dense or impure.”

 

So researchers at PPPL and in and Culham, England  are looking at ways of solving these challenges for the next generation of fusion devices, based on compact spherical tokamaks. They suggest that these could provide the design for possible next steps in fusion energy: a Fusion Nuclear Science Facility (FNSF) that would develop reactor components and also produce electricity as a pilot plant for a commercial fusion power station.

 

The detailed proposal for such a “jar” is described in a paper published in August 2016 in the journal Nuclear Fusion. “We are opening up new options for future plants,” said lead author Jonathan Menard, program director for the recently completed National Spherical Torus Experiment-Upgrade (NSTX-U) at PPPL. The $94-million upgrade of the NSTX, financed by the U.S. Department of Energy’s Office of Science, began operating last year.

 

Spherical tokamaks are compact devices shaped like cored apples, compared with the bulkier doughnut-like shape of conventional tokamaks. The increased power of the upgraded PPPL machine and the soon-to-be completed MAST Upgrade device “will push the physics frontier, expand our knowledge of high temperature plasmas, and, if successful, lay the scientific foundation for fusion development paths based on more compact designs,” said PPPL Director Stewart Prager.


Via Dr. Stefan Gruenwald
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Brain Guardians Remove Dying Neurons #neuroscience

Brain Guardians Remove Dying Neurons #neuroscience | human rights for a more sustainable life | Scoop.it
Neuroscience News has recent neuroscience research articles, brain research news, neurology studies and neuroscience resources for neuroscientists, students, and science fans and is always free to join.
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La Luce della Pace - The Light of Peace: Every time - Ogni volta

La Luce della Pace - The Light of Peace: Every time - Ogni volta | human rights for a more sustainable life | Scoop.it

In questo blog ho parlato di viaggi interstellari... e proprio uno di questi viaggi sta avvenendo adesso. Siamo in viaggio e di certo qualcuno dei miei lettori se ne sarà accorto. Questa volta viaggiamo con l'intera astronave chiamata Pianeta Terra.

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Pulsar Web Could Detect Low-Frequency Gravitational Waves

Pulsar Web Could Detect Low-Frequency Gravitational Waves | human rights for a more sustainable life | Scoop.it
Monitoring a vast network of rapidly spinning pulsars is key to finding very-low-frequency gravitational waves, researchers say.

 

Pulsars emit beams of radio waves, some of which sweep across Earth once every rotation. Astronomers detect this as a rapid pulse of radio emission. Most pulsars rotate several times a second. But some, called millisecond pulsars, rotate hundreds of times faster.

 

"Millisecond pulsars have extremely predictable arrival times, and our instruments are able to measure them to within a ten-millionth of a second," said Maura McLaughlin, a radio astronomer at West Virginia University in Morgantown and member of the NANOGrav team. "Because of that, we can use them to detect incredibly small shifts in Earth's position."

 

But astrophysicists at JPL and Caltech caution that detecting faint gravitational waves would likely require more than a few pulsars. "We're like a spider at the center of a web," said Michele Vallisneri, another member of the JPL/Caltech research group. "The more strands we have in our web of pulsars, the more likely we are to sense when a gravitational wave passes by."

 

Vallisneri said accomplishing this feat will require international collaboration. "NANOGrav is currently monitoring 54 pulsars, but we can only see some of the southern hemisphere. We will need to work closely with our colleagues in Europe and Australia in order to get the all-sky coverage this search requires."

 

The feasibility of this approach was recently called into question when a group of Australian pulsar researchers reported that they were unable to detect such signals when analyzing a set of pulsars with the most precise timing measurements. After studying this result, the NANOGrav team determined that the reported non-detection was not a surprise, and resulted from the combination of optimistic gravitational wave models and analysis of too few pulsars. Theirone-page response was released recently via the arXiv electronic print service.

 

Despite the technical challenges, Taylor is confident their team is on the right track. "Gravitational waves are washing over Earth all the time," Taylor said. "Given the number of pulsars being observed by NANOGrav and other international teams, we expect to have clear and convincing evidence of low-frequency gravitational waves within the next decade."

 

NANOGrav is a collaboration of over 60 scientists at more than a dozen institutions in the United States and Canada. The group uses radio pulsar timing observations acquired at NRAO's Green Bank Telescope in West Virginia and at Arecibo Radio Observatory in Puerto Rico to search for ripples in the fabric of spacetime. In 2015, NANOGrav was awarded $14.5 million by the National Science Foundation to create and operate a Physics Frontiers Center.

 

"With the recent detection of gravitational waves by LIGO, the outstanding work of the NANOGrav collaboration is particularly relevant and timely," said Pedro Marronetti, National Science Foundation program director for gravitational wave research. "This NSF-funded Physics Frontier Center is poised to complement LIGO observations, extending the window of gravitational wave detection to very low frequencies."


Via Dr. Stefan Gruenwald
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La Luce della Pace - The Light of Peace: La vita è servizio alla Coscienza - Life is service to Consciousness

La Luce della Pace - The Light of Peace: La vita è servizio alla Coscienza - Life is service to Consciousness | human rights for a more sustainable life | Scoop.it

La vita è servizio alla Coscienza. - Vanessa Life is service to Consciousness. - Vanessa Ce ne stiamo accorgendo... c'è una rivoluzione in corso.

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La Luce della Pace - The Light of Peace: Il viaggio nella Firenze del Rinascimento - The voyage in Renaissance's Florence

La Luce della Pace - The Light of Peace: Il viaggio nella Firenze del Rinascimento - The voyage in Renaissance's Florence | human rights for a more sustainable life | Scoop.it
Vanessa Schlachtaub Bruni's insight:

Finally I could write what I always desired to write... and I will continue ...

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It is possible - A life of magic

It is possible - A life of magic | human rights for a more sustainable life | Scoop.it
Can you reach me? - Digital art by Vanessa Schlachtaub Bruni ©
Read more about this design here: http://lucedellapace.blogspot.it/
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Vanessa Schlachtaub Bruni - Fine Art America

Vanessa Schlachtaub Bruni - Fine Art America | human rights for a more sustainable life | Scoop.it
Vanessa Bruni Schlachtaub
Artistic experiences
My life is and has been a continuous spiritual experience. The culmination came in 2010, when I experienced an exciting moment in my ongoing quest for spirituality.
From that moment I realized that artis...
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On Fine Art America you can find some of my art works for sale: if you would like some of my designs that is not in my shop... just ask!

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La Luce della Pace - The Light of Peace: Meditazione per mettersi in contatto con l'amore - Meditation to get in touch with love

La Luce della Pace - The Light of Peace: Meditazione per mettersi in contatto con l'amore - Meditation to get in touch with love | human rights for a more sustainable life | Scoop.it
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Vanessa Schlachtaub Bruni's insight:

Read this beautiful meditation, it is an ancient and sacred teaching of the Cosmos! Namasté.

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La Luce della Pace - The Light of Peace: Meditazione per mettersi in contatto con l'amore - Meditation to get in touch with love

La Luce della Pace - The Light of Peace: Meditazione per mettersi in contatto con l'amore - Meditation to get in touch with love | human rights for a more sustainable life | Scoop.it
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Read this beautiful meditation, it is an ancient and sacred teaching of the Cosmos! Namasté.

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La Luce della Pace - The Light of Peace: Una storia d'amore - A love story

La Luce della Pace - The Light of Peace: Una storia d'amore - A love story | human rights for a more sustainable life | Scoop.it
Vanessa Schlachtaub Bruni's insight:

Read my healing love story! It comes from the ancient traditions of the Cosmos. Namasté.

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La Luce della Pace - The Light of Peace: Una storia d'amore - A love story

La Luce della Pace - The Light of Peace: Una storia d'amore - A love story | human rights for a more sustainable life | Scoop.it
Vanessa Schlachtaub Bruni's insight:

In April 2014 I wrote on my blog that I was going to write a book, I don't know... I like so much how it is working this blog... I began to wrote a manuscript, I have a box full of drawings that are very precious and I have memories of Inter-dimensional travels that I did in 2010. But the blog is a fantastic way to communicate and the Universe is suggesting me to do so... to continue with my blog. I hope that my art and my words can arrive to the most large possible number of people, because I know that my message is very important.

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Why Managers Need to Recognize Employee Creativity - Fox Business

Why Managers Need to Recognize Employee Creativity - Fox Business | human rights for a more sustainable life | Scoop.it
Why Managers Need to Recognize Employee Creativity Fox Business If companies fail to integrate creativity and innovation into their business, they could be preventing themselves from reaching their full potential, according to a study from Rice...
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indeed! creativity is just a word in fashion. when they choose someone to hire they just want someone that serves their orders mercilessly

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La Luce della Pace - The Light of Peace: Couple - Coppia

La Luce della Pace - The Light of Peace: Couple - Coppia | human rights for a more sustainable life | Scoop.it
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A visual message in my blog!
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Codes Made Of DNA Can Tag Individual Cells

Codes Made Of DNA Can Tag Individual Cells | human rights for a more sustainable life | Scoop.it

Researchers from the Broad Institute have developed a DNA "barcode" to tag cells with different mutations, which could drastically speed up the process of testing cancer-fighting drugs. The researchers published a study late last month in Nature Biotechnology, and Francis Collins, director of the National Institutes of Health, blogged about it this week.


Via Integrated DNA Technologies
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Secrets Of Quantum #Physics - Quantum #Biology Theory (Documentary) #tech #twitter #science

In this Quantum Physics video documentary, we are going to take you through a journey where you can understand the secrets of the quantum physics and how lif...

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Fossil fuel emissions behind #Australia's record-breaking spring heat, #science study

Fossil fuel emissions behind #Australia's record-breaking spring heat, #science study | human rights for a more sustainable life | Scoop.it

Scientists say it is highly likely greenhouse gas emissions are behind Australia’s run of three hottest springs on record - 2014, 2015 and 2013


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Hundreds of galaxies found hiding behind the Milky Way. News? #science #astronomy

Hundreds of galaxies found hiding behind the Milky Way. News? #science #astronomy | human rights for a more sustainable life | Scoop.it

Astronomers in Australia have confirmed the discovery of hundreds of galaxies hidden by the Milky Way and a gravitational anomaly known as the Great Attractor.


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La Luce della Pace - The Light of Peace

La Luce della Pace - The Light of Peace | human rights for a more sustainable life | Scoop.it
Blog about peace research, art and colours, journalism of the soul
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It is possible - A life of magic

It is possible - A life of magic | human rights for a more sustainable life | Scoop.it
Can you reach me? - Digital art by Vanessa Schlachtaub Bruni ©
Read more about this design here: http://lucedellapace.blogspot.it/
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La Luce della Pace - The Light of Peace: A glimps from another dimension - Uno scorcio da un'altra dimensione

La Luce della Pace - The Light of Peace: A glimps from another dimension - Uno scorcio da un'altra dimensione | human rights for a more sustainable life | Scoop.it
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The latest post: I finally could write what I never thought was possible to explain with words... have a look!

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Vanessa Schlachtaub Bruni | tsū

It is true, the ships of our fleet are in the sky to transmit us tranquility and knowledge. I can see them quite often, but more than else... I feel their loving and caring presence.

https://www.youtube.com/watch?v=xLfRSaCJAEI&index=2&list=PLLqtGXm1Fn49KG530kd-yAh1sbcAhafJj
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Read this post on my blog: http://lucedellapace.blogspot.it/2015/04/my-root-in-sky-le-mie-radici-nel-cielo.html

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La Luce della Pace - The Light of Peace: Message from the Heavenly Fathers - Messaggio dai Padri Celesti

La Luce della Pace - The Light of Peace: Message from the Heavenly Fathers - Messaggio dai Padri Celesti | human rights for a more sustainable life | Scoop.it
Vanessa Schlachtaub Bruni's insight:

Read and spread the message from the Heavenly Fathers of the Cosmos! Namasté.

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La Luce della Pace - The Light of Peace: Divine Manifestation

La Luce della Pace - The Light of Peace: Divine Manifestation | human rights for a more sustainable life | Scoop.it
Vanessa Schlachtaub Bruni's insight:

I'm writing a lot of my spiritual experience: give a look to my blog!

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Are Children Remembering Their Past Lives?

Are Children Remembering Their Past Lives? | human rights for a more sustainable life | Scoop.it
Are Children Remembering Their Past Lives?
BY Kirsten Cowart, Spirit Science Are more children remembering past life experiences?

Via CineversityTV
Vanessa Schlachtaub Bruni's insight:

even adults, if they are still human beings

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♥ princess leia ♥'s curator insight, April 20, 2014 10:42 AM

I'm trying to remember what I did yesterday .. Haha