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Archive for the ‘physics’ category: Page 112

Dec 17, 2022

How do wind turbines spin during winter? The science behind frozen blades

Posted by in categories: energy, physics, science, sustainability

Building a wind power operation that can thrive in icy conditions requires a keen understanding of the underlying physics.

Winter is supposed to be the best season for wind power — the winds are more potent, and since air density increases as the temperature drops, more force is pushing on the blades. But winter also comes with a problem: freezing weather.

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Dec 15, 2022

Was There a Major Breakthrough in Fusion? Not Really…Here Are The Facts

Posted by in categories: bitcoin, cryptocurrencies, physics

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Hello and welcome! My name is Anton and in this video, we will talk about new announcement about a potential breakthrough in fusion.
Links:
https://theconversation.com/how-far-has-nuclear-fusion-power…ogy-195114
https://aip.scitation.org/doi/10.1063/5.0085304
https://www.llnl.gov/news/national-ignition-facility-experim…n-ignition.
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.129.075001

Previous video with details: https://youtu.be/5M5U2_9eEgM
#fusion #physics #breakingnews.

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Dec 13, 2022

The Halo Drive

Posted by in categories: cosmology, media & arts, nuclear energy, physics, space travel

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.

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Dec 13, 2022

Physicists Say New Breakthrough Proves Fusion Power Is Possible

Posted by in categories: nuclear energy, physics

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.

Dec 13, 2022

Traveling Back in Time

Posted by in categories: cosmology, education, media & arts, physics, space travel, time travel

Backwards through time? We travel forwards every day, but traveling back could let us change our past, visit old friends, or manipulate the timeline to our benefit… Although our knowledge of space and time remains incomplete, we can still use what we know to consider possible time machines. But what kind of paradoxes would this entail and how can we resolve them? Join us today on a special journey through time.

An educational video written and presented by Professor David Kipping.

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Dec 13, 2022

Future flying robots could be inspired by the aerodynamics of gliding snakes

Posted by in categories: physics, robotics/AI

A hidden mechanism for achieving glides of hundreds of feet is revealed by computational modelling.

Scientists are currently thinking of ways to create robots resembling the gliding motion of flying snakes, according to a study published today (Dec .13) in Physics of Fluids.

‘Undulations’ encourage lift.

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Dec 12, 2022

A Jupiter-sized spacecraft? Scientists say existing instruments could detect alien technology

Posted by in categories: alien life, physics

“I wouldn’t want to be on the team figuring out how to build a Jupiter-sized spacecraft, but the odds aren’t zero.”

A team of scientists believes we may be able to detect alien spacecraft flying through distant solar systems using the Laser Interferometer Gravitational-Wave Observatory (LIGO) in the US.

Though the scientists from Applied Physics, a research institute in New York, concede that gravitational wave (GW) detection is “in its infancy”, they also say it is “a sophisticated science” that could be used to “detect extra-terrestrial mega-technology,” in a paper available in pre-print server arXiv.

Dec 12, 2022

Prof. Dr. Tony Donne, Ph.D. — Program Manager (CEO), EUROfusion — Fusion Energy For All Humanity

Posted by in categories: nuclear energy, physics

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.

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Dec 12, 2022

Information is the frontier for the study of life

Posted by in categories: cosmology, physics

Life is really weird. From the vantage point of a physicist, it is even stranger. Life is unlike any other phenomenon in physics. Stars, electrons, and black holes are all amazing in their own ways. But only life invents, and the first thing life invents is itself.

Life is creative in a way that no other physical system can be, and its unique use of information may be the key to understanding what makes it different from other physical systems. Now, thanks to a new grant my colleagues and I have received from the Templeton Foundation, we are going to be exploring exactly how information allows life to work its magic. I’m very excited about the project, and this essay is my first report from the frontier as we plunge into terra incognita.

Dec 11, 2022

A trio of satellites could take a groundbreaking 360-degree photo of the sun

Posted by in categories: mapping, physics, satellites

We still don’t have a clear picture of the Sun’s physics — but the Solar Ring could change that.


To solve this a team of astronomers proposes the Solar Ring. The Solar Ring is a fleet of three spacecraft that will all orbit around the Sun. They will be separated from each other by 120 degrees and be fitted with identical instruments. This way their overlapping fields of view will make it impossible for us to miss anything happening on the surface.

Among the many kinds of observations that the astronomers behind the Solar Ring hope to perform, one involves a technique called reverberation mapping. By carefully mapping the velocity of gas on the surface of the Sun, they can measure vibrations and pulsations. These kinds of “sunquakes” give astronomers rich information about what is happening within deeper layers, much like how earthquakes tell us about the core and mantle of the Earth.

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