#relativity is an active hashtag on Bluesky. In the last 30 days, 24 people shared 32 posts with it — around 1 a day. Activity is down 44% versus the previous week, peaking on Aug 25 with 3 posts.
Tags most often used together with #relativity.
ras.ac.uk
Dark energy 'doesn’t exist' so can't be pushing 'lumpy' Universe apart – study
One of the biggest mysteries in science – dark energy – doesn't actually exist, according to researchers looking to solve the riddle of how the Universe is expan...
bigthink.com
Does the Universe expand faster than the speed of light?
Just 13.8 billion years after the hot Big Bang, we can see 46.1 billion light-years away in all directions. Doesn't that violate something?
bigthink.com
How to understand Einstein's relativity without math
Times dilate and lengths contract near the speed of light. Bizarre and confusing? Sure. But under relativity, it can't be any other way.
www.universetoday.com
A New Theory of the Universe’s Origins Without Inflation
How exactly did the universe start and how did these processes determine its formation and evolution? This is what a recent study published in Physical Review Research hopes to address as a team of re...
bigthink.com
Singularities inside black holes are truly unavoidable
Yes, "the laws of physics break down" at singularities. But relativity itself would have to be wrong for black holes to not possess them.
www.livescience.com
An 'impossible' black hole merger may finally be solved thanks to Einstein's relativity — but it raises an even bigger mystery
New research suggests that a perplexing signal created by a pair of colliding black holes may have been warped by a space-time phenomenon known as gravitational lensing. This theory could finally expl...
www.spreaker.com
Is Time a Lie? Why Your Past, Present & Future Are Happening Right Now
Ever feel like you are racing against time, only to realize that time itself might be lying to you? ⏳ What if I told you that your past, your future, and this very moment are all existing right now in a massive, frozen block of spacetime? 🌌 In this episode, we pull back the curtain on the Block Universe Theory—a concept that keeps even the brightest minds in physics awake at night. We are breaking down why your brain perceives a 'moving now' while the math suggests the universe is actually a static, four-dimensional masterpiece. Why You Need to Listen: - The Illusion of Now: Understand how relativity of simultaneity proves that 'now' is purely subjective. - Physics vs. Intuition: Why our human brains are hardwired to misunderstand the fundamental architecture of reality. - Entropy Explained: Discover how the arrow of time is really just a byproduct of information processing. Whether you are a physics nerd or just someone who loves a good existential crisis, this conversation will change how you look at every single second of your life. 🤯 Ready to shift your perspective on reality? Hit that play button and join the conversation in the comments—do you think the future is already written? 🚀
en.killbait.com
Quantum Interferometer Tests Equivalence Principle in Free Fall
A team of physicists led by Ron Folman from Ben-Gurion University of the Negev has successfully conducted an experiment that tests the interaction between quantum mechanics and Einstein's theory of relativity. The researchers developed a new type of interferometer called the Quantum Galileo Interferometer (QGI) that places atoms in a superposition of trajectories—one involving free fall and the other where the atom remains stationary. This experiment is significant because it represents the first time the equivalence principle, a cornerstone of Einstein's theory of relativity, has been tested in a quantum system. The experiment involved cooling rubidium atoms to near absolute zero and using microwave and magnetic pulses to create a superposition of states. One trajectory involved the atom being kicked upward by a magnetic pulse, allowing it to fall back under gravity, while the other trajectory kept the atom stationary. The two paths were designed to meet at the same point, enabling the measurement of phase differences between the quantum states. The results showed that the phase accumulated by the falling path aligned with theoretical predictions, confirming that quantum systems still follow the equivalence principle. The team observed a 2.5 percent deviation from the theoretical prediction, placing this experiment at the boundary between quantum mechanics and relativity. Folman and his colleagues argue that this is a critical checkpoint in the ongoing effort to reconcile these two fundamental theories of physics. The researchers are now working on scaling up the experiment to use nanodiamonds, which are 10 orders of magnitude heavier than atoms, to test whether gravity itself is quantum in nature. This next phase of research, based on Roger Penrose's hypothesis, aims to observe if superpositions of spacetime curvature collapse, which would provide direct evidence about the quantum nature of gravity. The findings, published in Science Advances, represent a significant step toward understanding the relationship between quantum mechanics and relativity, though they do not yet resolve the fundamental incompatibility between the two theories. The experiment required overcoming significant technical challenges, including maintaining quantum coherence during the free fall and ensuring that the two trajectories could interfere without revealing which path the atom took. The QGI's design, which uses a chip-based system with microscopic wires to hold atoms in a Bose-Einstein condensate, represents a novel approach to quantum measurement that could have broader applications in quantum technology.
freegardner.com
Picard Maneuver Physics Upgrade Reveals Real Effect
Picard Maneuver Physics Upgrade Reveals Real Effect The Simplest Answer Misses Something In the first season of Star Trek: The Next Generation, an episode called "The Battle" introduced a tactical...
third-news.com
Relativity Welcomes Skadden to Its Forward-Thinking Advanced Access Program for claiR AI
Relativity has partnered with Skadden to enhance its AI-driven claiR program, aiming to empower legal professionals with innovative tools for efficiency.
emergent-time-framework.org
The ETF Universe
This page provides a brief history of the cosmos through the lens of the Emergent Time Framework. This is a 20-25 minute read. You can also download a PDF of this article. If you are an academic ph…
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