Tag

Relativity

All articles tagged with #relativity

Physicists Achieve Near-Light Speed Object Illusion

Originally Published 3 months ago — by Live Science

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Source: Live Science

Physicists in Vienna used ultra-fast lasers and cameras to simulate the Terrell-Penrose optical illusion, demonstrating how objects moving at near-light speeds appear rotated due to light's travel time, confirming a century-old prediction of special relativity in a lab setting.

Unified Theory Connects Quantum and Relativity in Electron Spin Dynamics

Originally Published 5 months ago — by Phys.org

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Source: Phys.org

A new theoretical framework has been developed that unifies quantum mechanics and relativity in describing electron spin-lattice interactions in solids, improving the accuracy of modeling spin-related phenomena and advancing potential applications in spintronics and quantum technologies.

Tachyon Research Promises Breakthroughs in Time Travel and Reality

Originally Published 6 months ago — by The Brighter Side of News

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Source: The Brighter Side of News

A recent study proposes a new framework where tachyons, particles faster than light, could exist within Einstein's relativity without causing paradoxes, potentially revolutionizing our understanding of time, causality, and the universe's fundamental laws.

How Light Maintains Energy Over Cosmic Distances

Originally Published 7 months ago — by Gizmodo

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Source: Gizmodo

Light travels through space at a constant speed and does not wear out or lose energy when it moves through the vacuum of space, unless it interacts with matter. Its ability to travel vast distances without losing energy is due to the emptiness of space and the nature of electromagnetic radiation, which is massless and unaffected by friction or resistance in a vacuum.

Physicist Unveils Overlooked Aspect of Einstein's Relativity

Originally Published 1 year ago — by The Debrief

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Source: The Debrief

Physicist Alessio Zaccone has discovered a new effect of Einstein's theory of special relativity on fluids, termed "fluid thickening," which describes how fluid viscosity changes under relativistic conditions. This groundbreaking theory, detailed in Physical Review E, combines relativistic equations with current fluid dynamics theories to explain viscosity behavior at near-light speeds and high temperatures. Zaccone's work suggests a potential new fundamental law of physics, enhancing our understanding of relativistic effects on fluids and their implications in astrophysics and high-energy physics.

Einstein's Relativity Theory Expanded to Real Fluids

Originally Published 1 year ago — by Phys.org

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Source: Phys.org

A new theory extends Einstein's relativity to real fluids, proposing a relativistic theory of viscosity that accounts for the effects of high-speed motion on fluid properties. This theory, based on the relativistic Langevin equation, suggests that fluid viscosity increases with speed, analogous to length contraction and time dilation, and introduces the concept of "fluid thickening" at relativistic speeds. The findings have implications for understanding high-energy fluids like quark-gluon plasma in astrophysics and high-energy physics.

"NASA Faces Challenges in Establishing Lunar Timekeeping"

Originally Published 1 year ago — by AOL

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Source: AOL

As multiple countries aim to establish a human presence on the moon, experts emphasize the need for a standardized lunar time scale. Due to Einstein's theory of relativity, time passes differently on the moon, making it crucial for astronauts to have an accurate timekeeping system for their activities.

NASA's Mission to Establish Lunar Time Zone

Originally Published 1 year ago — by CNN

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Source: CNN

As multiple countries aim to establish a human presence on the moon, NASA and its international partners face the challenge of creating a lunar time scale. Due to Einstein's theory of relativity, time passes differently on the moon, making it crucial to develop a system that accounts for these variations to ensure accurate timekeeping for astronauts.

"The Consequences of Traveling at the Speed of Light"

Originally Published 1 year ago — by Space.com

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Source: Space.com

Moving at the speed of light is theoretically impossible for humans due to the extreme acceleration forces involved, which could lead to severe injury or death. Additionally, as an object with mass approaches the speed of light, its mass increases, making it impossible to reach that speed. However, particle accelerators have been able to propel subatomic particles to over 99.9% of the speed of light. If it were possible to move at near light speed, the effects of relativity on time would be experienced, with time passing more slowly for the traveler.