Tag

Relativity

All articles tagged with #relativity

science9 days ago•5 min saved

Scientists Photograph Light in Motion, Revealing Terrell Rotation at Near-Light Speeds

Researchers from the University of Vienna used pulsed lasers and ultrafast cameras to photograph light moving at near-light speeds, recreating the Terrell–Penrose rotation and showing how objects would appear rotated rather than squashed; by capturing slices of light and stitching them, they slowed light to about 2 m/s to visualize the motion, with implications for relativity studies, particle physics, and astrophysics.

via The Daily Galaxy|

#high-speed-imaging #light-speed-photography #physics

space1 month ago•54 min saved

LTE440: China's lunar clock aims to sync Moon time with relativity

Chinese researchers unveiled LTE440, a lunar time ephemeris that uses Lunar Coordinate Time and relativistic corrections to convert Earth time to Moon time with long-term accuracy (about 1,000 years). Built on Kopeikin’s TCL framework, it aims to coordinate lunar time for navigation and communication during future Moon missions and could become an international benchmark alongside NASA and ESA efforts to standardize lunar clocks, helping prevent time-zone chaos in space.

via Live Science|

#lte440 #lunar-clock #lunar-time

science1 month ago•4 min saved

Black Hole Twists Spacetime Confirming Einstein's Predictions

Astronomers have directly observed a spinning black hole twisting spacetime, confirming Einstein's century-old prediction of frame-dragging through the detection of wobbling in a star's debris disk and jets during a tidal disruption event, using X-ray and radio observations.

via SciTechDaily|

#astronomy #black-hole #lense-thirring-precession

science1 month ago•5 min saved

Scientists Confirm Time Moves Faster on Mars

Scientists at NIST have calculated that clocks on Mars run approximately 477 microseconds faster per day than on Earth, with variations due to Mars' orbit and gravity, which is crucial for future Mars exploration and interplanetary communication systems.

via ScienceDaily|

#interplanetary-communication #mars #nasa

science2 months ago•3 min saved

Scientists Discover How Much Faster Time Passes on Mars

Scientists from NIST have determined that clocks on Mars run approximately 477 microseconds faster per day than on Earth due to gravitational effects, with variations throughout the Martian year, which is crucial for future Mars missions and interplanetary navigation.

via ScienceAlert|

#mars #relativity #science

science2 months ago•4 min saved

Why Clocks Run Faster on Mars Than on Earth

Due to Einstein's theory of general relativity, time passes slightly faster on Mars than on Earth by about 477 microseconds per day, influenced by differences in gravity and orbital dynamics, which has implications for future space navigation and communication systems.

via Space|

#einstein #mars #navigation

science2 months ago•4 min saved

Mars's Unique Time Zone Challenges and Opportunities

Scientists have found that clocks on Mars run faster than on Earth by about 477 microseconds per day due to differences in gravity and orbital dynamics, with implications for future space missions and tests of Einstein's relativity.

via Earth.com|

#clocks #mars #relativity

science4 months ago•1 min saved

Filming at Light Speed: One Foot per Nanosecond

Brian Haidet's experiment captures laser beams at 2 billion frames per second, revealing how light appears to travel faster towards the camera due to an artifact related to special relativity, achieved through a highly upgraded setup.

via Hackaday|

#experimental-physics #high-speed-camera #laser

science4 months ago•4 min saved

Physicists Achieve Near-Light Speed Object Illusion

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.

via Live Science|

#laser-simulation #light-speed #optical-illusion

science7 months ago•2 min saved

Unified Theory Connects Quantum and Relativity in Electron Spin Dynamics

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.

via Phys.org|

#electron-spin #quantum-mechanics #relativity

science8 months ago•6 min saved

Tachyon Research Promises Breakthroughs in Time Travel and Reality

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.

via The Brighter Side of News|

#quantum-mechanics #relativity #science

science9 months ago•4 min saved

How Light Maintains Energy Over Cosmic Distances

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.

via Gizmodo|

#energy #light #relativity

science1 year ago•4 min saved

Physicist Unveils Overlooked Aspect of Einstein's Relativity

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.

via The Debrief|

#einstein #fluid-dynamics #physics

science1 year ago•5 min saved

Einstein's Relativity Theory Expanded to Real Fluids

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.

via Phys.org|

#einstein #fluid-dynamics #high-energy-physics

science-and-space1 year ago•5 min saved

"NASA Faces Challenges in Establishing Lunar Timekeeping"

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.

via AOL|

#lunar-missions #moon #nasa