For the first time in history, US scientists at the National Ignition Facility at the Lawrence Livermore National Laboratory in California successfully produced a nuclear fusion reaction resulting in a net energy gain. Science educator Bill Nye explains why this is such a big breakthrough. #CNN #News
Category: nuclear energy – Page 60
The Halo Drive
How could we one day travel between the stars with real physics? Perhaps the greatest challenge to interstellar flight is energetics — it takes vast amounts of energy to accelerate even small ships to 20% the speed of light. But what if we could steal that energy from where? Perhaps even a black hole. Enter the “halo drive”, a video by Prof David Kipping based on his new peer-reviewed research paper on the subject.
This video is based on research conducted at the Cool Worlds Lab at Columbia University, New York. You can now support our research program directly here: https://www.coolworldslab.com/support.
Further reading and resources:
► Kipping, David (2018), “The Halo Drive: Fuel Free Relativistic Propulsion of Large Mases via Recycled Boomerang Photons”, JBIS, 71458: https://arxiv.org/abs/1903.03423
► Dyson, Freeman (1963), “Gravitational Machines”, in A.G.W. Cameron, ed., Interstellar Communication, New York Benjamin Press: https://www.ifa.hawaii.edu/~barnes/ast242_s14/Dyson_Machines.pdf.
► Breakthrough Starshot homepage: https://breakthroughinitiatives.org/initiative/3
► Our Cool Worlds video giving some background on Breakthrough Starshot: https://youtu.be/Ksb6Vh0BT_E
► Our Cool Worlds video on relativistic moving mirrors: https://youtu.be/msK9d9k6K0E
► Our Cool Worlds video on mirror distortion effects: https://youtu.be/1iNA-GTocI0
► Columbia University Department of Astronomy: http://www.astro.columbia.edu.
► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu.
There’s an error in the video at around 8:30, 2 trillion joules is the cumulative energy output of a typical nuclear power station after 2000 seconds, not 20 days.
Music is largely by Chris Zabriskie (http://chriszabriskie.com/) and is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/), in order of appearance;
► Cylinder Five (http://chriszabriskie.com/cylinders/)
► Music from Neptune Flux, “We Were Never Meant to Live Here” (http://chriszabriskie.com/neptuneflux/)
► Music from Neptune Flux, “That Hopeful Future Is All I’ve Ever Known” (http://chriszabriskie.com/neptuneflux/)
► Cylinder Four (http://chriszabriskie.com/cylinders/)
► The Sun is Scheduled to Come Out Tomorrow (https://soundcloud.com/chriszabriskie/the-sun-is-scheduled-to-come)
In addition, music from OneGuitarOrchestra, acoustic cover of Hans Zimmer’s “No Time For Caution”: https://youtu.be/vau08Z_pN8s.
Video materials used:
Net gain in fusion energy reported
The U.S. Department of Energy (DOE) has today confirmed the achievement of “fusion ignition” at Lawrence Livermore National Laboratory (LLNL) – a major scientific breakthrough, many decades in the making, which could pave the way to near-limitless clean power.
On 5th December, a team at LLNL’s National Ignition Facility (NIF) conducted the first controlled experiment in history to reach this milestone, also known as scientific energy breakeven, meaning it produced more energy from fusion than the laser energy used to drive it. This first-of-its-kind feat will provide invaluable insights into the fusion energy process, which scientists have been attempting to develop for nearly a century.
Inside the target chamber of LLNL’s National Ignition Facility, 192 laser beams delivered more than 2 million joules of ultraviolet energy to a tiny fuel pellet to create the fusion ignition. These lasers heated the capsule to 100,000,000°C – more than six times hotter than the Sun’s core, and compressed it to more than 100 billion times the pressure of Earth’s atmosphere. Under these unimaginable forces, the capsule would have imploded on itself, forcing its hydrogen atoms to fuse and release energy.
Physicists Say New Breakthrough Proves Fusion Power Is Possible
Researchers at the Lawrence Livermore National Laboratory claim to have achieved the seemingly impossible: generate more energy with a fusion reaction than they put into it, potentially paving the way for a truly environmentally friendly and safe source of power.
Their experiment, which involved using the “world’s largest and highest energy laser system” at Livermore’s National Ignition Facility to blast light at small capsules of deuterium-tritium fuel, generated 20 percent more energy than the amount required to power the system.
Despite the modest energy output — the system generated enough power to boil around two to three kettles — the researchers are boldly predicting that it could represent a major turning point in the quest to turn fusion energy into a reality.
Finally! Nuclear fusion scientists achieved net energy production in a historic first
This new breakthrough opens the door to limitless clean energy.
The time has finally come. Scientists at the Lawrence Livermore National Laboratory (LLNL) are the first in the world to demonstrate net energy production from nuclear fusion.
In other words, theirs was the first ever nuclear fusion experiment to produce more energy than was required to run the experiment in the first place.
Researchers achieved the milestone, also known as fusion ignition, at LLNL’s National Ignition Facility (NIF) during a controlled fusion experiment last Monday, Dec. 5, according to a statement from the US Department of Energy (DOE). They waited for peer-review results before revealing the results to the world.
Lawrence Livermore National Laboratory.
U.S. to reveal scientific milestone on fusion energy
WASHINGTON, Dec 12 (Reuters) — The U.S. Department of Energy on Tuesday will announce that scientists at a national lab have made a breakthrough on fusion, the process that powers the sun and stars that one day could provide a cheap source of electricity, three sources with knowledge of the matter said.
The scientists at Lawrence Livermore National Laboratory in California have achieved a net energy gain for the first time, in a fusion experiment using lasers, one of the people said.
While the results are a milestone in a scientific quest that has been developing since at least the 1930s, the ratio of energy going into the reaction at Livermore to getting energy out of it needs to be about 100 times bigger to create a process producing commercial amounts of electricity, one of the sources said.
Breakthrough fusion power announcement expected tomorrow. Here’s what it means
Overnight, news broke that the National Ignition Facility, a U.S. government research lab, was the first to achieve net-positive nuclear fusion. When lasers hit the tiny fuel pellet, it created an explosion that released more energy than the lasers delivered.
For decades, fusion power has been just around the corner. Is this the moment we’ve all been waiting for?
Maybe.
Prof. Dr. Tony Donne, Ph.D. — Program Manager (CEO), EUROfusion — Fusion Energy For All Humanity
Fusion Energy For All Humanity — Prof Dr. Tony Donné Ph.D. — Program Manager (CEO), EUROfusion
Prof. Dr. Tony Donne, Ph.D. is Program Manager (CEO) of the EUROfusion (https://www.euro-fusion.org/) research consortium, a European consortium of 30 national fusion research institutes, in 26 EU countries, plus Switzerland and Ukraine, where he coordinates the work of over 4,000 scientists and engineers.
Dr. Donne trained as a physicist, obtaining his Masters in Experimental Physics at Utrecht University, his Ph.D. degree at the Free University of Amsterdam for work in the field of nuclear physics, and moved into fusion research right afterwards and has devoted a substantial part of his scientific career to the design and use of plasma diagnostics in a large range of fusion devices.
Prior to EUROfusion, Dr. Donne was head of the Fusion Physics Division at the Dutch Institute for Fundamental Energy Research (DIFFER) and responsible for the coordination of the nuclear fusion research in the Netherlands, where he coordinated Dutch fusion research as Director of fusion science and Acting Director.
Dr. Donne has also served as Professor in Diagnostics and Heating of Fusion Plasmas at Eindhoven University of Technology, Director of the Dutch-Russian Centre of Excellence on Fusion Physics and Technology, as well as Program Director of the ITER (International Thermonuclear Experimental Reactor)-Netherlands consortium, and chair of the Coordination Committee of the International Tokamak Physics Activity under the auspices of the ITER project.