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Archive for the ‘nuclear energy’ category: Page 63

Jan 28, 2022

Burn, baby, burn: Nuclear scientists achieve major fusion feat

Posted by in categories: nuclear energy, particle physics

The ultimate goal, still years away, is to generate power the way the sun generates heat, by smooshing hydrogen atoms so close to each other that they combine into helium, which releases torrents of energy.

WATCH: Is alluring but elusive fusion energy possible in our lifetime?

A team of more than 100 scientists published the results of four experiments that achieved what is known as a burning plasma in Wednesday’s journal Nature. With those results, along with preliminary results announced last August from follow-up experiments, scientists say they are on the threshold of an even bigger advance: ignition. That’s when the fuel can continue to “burn” on its own and produce more energy than what’s needed to spark the initial reaction.

Jan 27, 2022

NASA’s First Test to Lower the Sound of Sonic Booms Was Successful

Posted by in categories: nuclear energy, physics, transportation

The Concorde’s successor might be quieter.

NASA has completed the first test of the works on lowering the volume of supersonic flights in an effort to lift the ban on commercial supersonic flights, NASA’s Glenn Research Center announced.

The sonic booms happen when the merge of shock waves, created by breaking the sound barrier at the speed of 767 mph (1,235 kph). The huge amount of sound energy, approximately 110 decibels, generated by sonic booms sounds like thunderclaps or explosions and can be heard from 30 miles (48 km) away, which is why supersonic commercial flights are banned by the Federal Aviation Administration (FAA). physicists confirm that they have achieved a stage in nuclear fusion called “burning plasma”.

Jan 27, 2022

Structured thermal armor achieves liquid cooling above 1,000°C and solves challenge presented by Leidenfrost effect

Posted by in categories: engineering, nuclear energy

A research team led by scientists from City University of Hong Kong (CityU) has recently designed a structured thermal armor (STA) that achieves efficient liquid cooling even over 1,000°C, fundamentally solving a 266-year-old challenge presented by the Leidenfrost effect. This breakthrough can be applied in aero and space engines, as well as improve the safety and reliability of next-generation nuclear reactors.

The research has been led by Professor Wang Zuankai from CityU’s Department of Mechanical Engineering (MNE), Professor David Quéré from the PSL Research University, France, and Professor Yu Jihong, Director of the International Center of Future Science, Jilin University and Senior Fellow of the Hong Kong Institute for Advanced Study at CityU.

The findings were published in the latest issue of the highly prestigious scientific journal Nature.

Jan 26, 2022

Government Scientists Create ‘Burning Plasma’ In Fusion Energy Milestone

Posted by in categories: government, nuclear energy

Scientists extracted a maximum yield of 170 kilojoules from a two-millimeter capsule of thermonuclear fuel.

Jan 26, 2022

5 NEWEST Advanced ARMY ROBOTS 2022 | Boston Dynamics

Posted by in categories: military, nuclear energy, robotics/AI

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The United States military has a long record of being at the forefront of humankind’s technological achievements. For example, it was the U.S. Navy in the 1940s, led by Admiral Rickover, who pioneered the use of nuclear power as a propulsion device, and that eventually led to nuclear power plants for civilian use. Today, the military again leads the charge into the future with their innovations in robotics and their many applications across the entire infrastructure of the organization. We will talk about MAARS, Robobee, DOGO, SAFFiR and Gladiator!

Continue reading “5 NEWEST Advanced ARMY ROBOTS 2022 | Boston Dynamics” »

Jan 25, 2022

China’s “artificial sun” achieved record-breaking temperatures and developed a moon simulator

Posted by in categories: nuclear energy, space

China’s artificial sun reached 158 million degrees Fahrenheit for 17 minutes and 36 seconds. (Image Credit: Wikimedia Commons)

China set a ground-breaking record with its “artificial sun,” which superheated plasma to temperatures five times hotter than the sun. The Experimental Advanced Superconducting Tokamak (EAST) nuclear fusion reactor reached 158 million degrees Fahrenheit for 1,056 seconds (17 minutes, 36 seconds). This latest breakthrough brings the country one step closer toward its goal for unlimited clean fusion energy.

China’s EAST surpassed France’s Tore Supra tokamak record, set in 2003 when it superheated plasma in its coiling loop to identical temperatures for 390 seconds. Also, in May 2021, EAST set another record by running at 216 million F for 101 seconds. The fusion reactor achieved a peak temperature of 288 million Fahrenheit for 20 seconds during this experiment. In comparison, the sun’s core reaches approximately 27 million Fahrenheit.

Jan 19, 2022

Ranked: Nuclear Power Production

Posted by in category: nuclear energy

Nuclear power accounted for 10% of global electricity generated in 2020. Here’s a look at the largest nuclear power producers.

Jan 19, 2022

Thread robot is designed to remove blood clots in brain

Posted by in categories: biotech/medical, nanotechnology, nuclear energy, robotics/AI

MIT team develops steerable soft thread-like robot capable of navigating tiny blood vessels

Snake robots are among the most familiar type of mechanical device for working in confined spaces. Flexible, tubular robots have been used for applications such as working in the interior of nuclear reactors, water distribution systems and inside the human body to aid surgery. The MIT team, mechanical engineers affiliated to the institution’s Institute for Soldier Nanotechnologies, have downsized the snake paradigm to the scale of a thread half a millimetre in diameter, which can be remotely controlled by magnetic fields to worm its way through the convoluted blood vessels of the brain to deliver clot-busting drugs or devices to break up and remove the blockage. Such robots have the potential to quickly treat a stroke and prevent damage to the brain, the team claims.

Jan 16, 2022

“Extraterrestrial contact is imminent”, according to several scientists (Video)

Posted by in categories: alien life, climatology, nuclear energy

👽 Many experts, for years, believe that the scientific community no longer has a way to hide it. Life outside the earth exists. 🛸VIDEO 🛸

O’Connell reveals that life is capable of surviving in environments inhospitable to humans. For this reason, he believes that life can be found in a lake of sulfuric acid, inside barrels of nuclear waste, in water superheated to 122 degrees Celsius and even in Antarctica.

Furthermore, he adds that Mars was once an ideal place for life. He believes that the presence of methane in its atmosphere is proof that extraterrestrial life existed there.

Continue reading “‘Extraterrestrial contact is imminent’, according to several scientists (Video)” »

Jan 12, 2022

Seeing the plasma edge of fusion experiments in new ways with artificial intelligence

Posted by in categories: nuclear energy, particle physics, robotics/AI

To make fusion energy a viable resource for the world’s energy grid, researchers need to understand the turbulent motion of plasmas: a mix of ions and electrons swirling around in reactor vessels. The plasma particles, following magnetic field lines in toroidal chambers known as tokamaks, must be confined long enough for fusion devices to produce significant gains in net energy, a challenge when the hot edge of the plasma (over 1 million degrees Celsius) is just centimeters away from the much cooler solid walls of the vessel.

Abhilash Mathews, a PhD candidate in the Department of Nuclear Science and Engineering working at MIT’s Plasma Science and Fusion Center (PSFC), believes this plasma edge to be a particularly rich source of unanswered questions. A turbulent boundary, it is central to understanding plasma confinement, fueling, and the potentially damaging heat fluxes that can strike material surfaces — factors that impact fusion reactor designs.

To better understand edge conditions, scientists focus on modeling turbulence at this boundary using numerical simulations that will help predict the plasma’s behavior. However, “first principles” simulations of this region are among the most challenging and time-consuming computations in fusion research. Progress could be accelerated if researchers could develop “reduced” computer models that run much faster, but with quantified levels of accuracy.

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