Theory of Relativity

Ask Ethan: Which Movies Get The Science Of Time Travel Right?

The way we travel through time, at a speed of one second per second, is so boring that we take it for absolute granted. Yet according to Einstein’s theory of relativity, we can not only travel forward through time at different rates by accelerating close to the speed of light, we could potentially …

Time Travel

Thought Experiment Shows Why We Need Quantum Gravity

There are two theories we have that explain all the particles and their interactions in the known Universe: General Relativity and the Standard Model …

Quantum Mechanics

Cosmic Neutrinos Helps Prove Einstein Right Once Again

The detection of a neutrino from a distant blazar, announced last week, is of paramount importance for current and future astrophysics. But …

Physics

Volume average regularization for the Wheeler-DeWitt equation

Author(s): Justin C. FengIn this article, I present a volume average regularization for the second functional derivative operator that appears in the …

Quantum Physics

Much Anticipated Science Fiction Sequel Released

MIAMI, July 21, 2018 /PRNewswire-PRWeb/ -- Science fiction fans are in for a treat as author Norbert Monfort has created a sequel to his most successful novel – The Scalian Legacy. Set in both the distant future and the present, Nagaran's Revisals takes the reader on a roller coaster ride through …

Florida International University

Black hole entropy production and transport coefficients in Lovelock gravity

Author(s): C. Fairoos, Avirup Ghosh, and Sudipta SarkarWe study the entropy evolution of black holes in Lovelock gravity by formulating a …

Black Holes

Quantum effects cloak impossible singularities with black holes

Break out the censor’s black bars for naked singularities. Quantum effects could be obscuring these impossible predictions of general relativity, new …

Equations

Finite quantum gravity in dS and AdS spacetimes

Author(s): Alexey S. Koshelev, K. Sravan Kumar, Leonardo Modesto, and Lesław RachwałWe hereby study the properties of a large class of weakly …

Physics

Black Heart

<b>John 1:5</b> – And the light shineth in darkness; and the darkness comprehended it not.For me, there is something about the night sky with its countless …

Black Holes

Franklin Regional senior among 56 statewide to attend Pa. Governor's School for the Sciences

Updated 1 hour ago<p>While most of her classmates are enjoying the summer off, Sara Dabre of Murrysville is dipping her toes into the waters of …

Carnegie Mellon University

Spontaneous growth of spinor fields in gravity

Author(s): Fethi M. RamazanoğluWe show that spinor fields nonminimally coupled to gravity can grow spontaneously in the presence of matter. We name …

Physics

General Relativity as a Collection of Collections of Models

Manchak, JB (2018) General Relativity as a Collection of Collections of Models. [Preprint]

Philosophy of Science

Extending general covariance: Moyal-type noncommutative manifolds

Author(s): Martin Bojowald, Suddhasattwa Brahma, Umut Buyukcam, and Michele RoncoIn the Hamiltonian formulation of general relativity, Einstein's …

Mathematics

Curiosity — Albert Einstein's Theory of Happiness Is a Simple...

Here it is: your chance to read work by Albert Einstein that won’t turn your brain into a black hole. This isn’t his theory of relativity; this is …

Albert Einstein

Right Again, Einstein: Special Relativity Works Even in Ghostly High-Energy Neutrinos

Once again, scientists have shown that Albert Einstein's theory of special relativity is right — this time, thanks to a particle detector buried deep …

Physics

Comment on ``Construction of regular black holes in general relativity''

Author(s): Bobir Toshmatov, Zdeněk Stuchlík, and Bobomurat AhmedovWe claim that the physical parameters of the constructed black hole solutions in …

Black Holes

4 Timeless Productivity Lessons from Albert Einstein

Albert Einstein knew how to work hard, and he also knew when to take time off.<p>He once said, “I have no special talents. I am only passionately curious.”<p>Einstein’s curiosity drove him as a child, adult and older man to pursue scientific ideas and projects that are still applicable today, such as his …

Albert Einstein

July 2018

Features<p>Relativity: Right or wrong?<p>Einstein’s relativity replaced Newton’s gravity. Now observations of black holes might test the limits of Albert’s …

Astronomy

Resetting Uncontrolled Quantum Systems

To disrupt the normal progress of time—by increasing, decreasing, or even reverting the natural evolution of events—scientists have proposed many …

Particles

LIGO: How Scientists Hear Ripples in Space

STUBI could write something on this, but I am unsure how technical I should be. For now, I shall just make a few comments. I might want to write …

Physics

What is Albert Einstein's theory of relativity, what are the physicist's most famous quotes and when was his death?

ALBERT Einstein is one of the smartest human beings who ever lived.<p>The German-American physicist's theories changed our understanding of the …

Physics

What Would a Camera on a Breakthrough Starshot Spacecraft See if it's Going at High Velocity?

In April of 2016, Russian billionaire Yuri Milner announced the creation of Breakthrough Starshot. As part of his non-profit scientific organization …

Universe

Rocket Startup Relativity Space Sees Big Future in Military Launches

WASHINGTON — Startup CEOs generally have mixed feelings about working with the Pentagon. Tim Ellis, chief executive of rocket maker Relativity Space, …

Space Exploration

General Relativity Holds Up in Three-Star System

Scientists understand gravity pretty well when it comes to two objects, but add a third, and you've got chaos—a system that's impossible to explain …

Equations

Einstein's theory of relativity passes its toughest test yet

Yet more evidence that the great physicist got gravity right.<p>Einstein's theory of general relativity has passed its toughest test with flying colors, a new study reports.<p>General relativity, which Einstein proposed in 1916, holds that gravity is a consequence of space-time's inherent flexibility: …

Research

Triple star system puts Einstein's theory of relativity to the test

One of the things predicted by the theory of relativity is the "universality of free fall" – basically, any two objects in a vacuum will fall at the …

Physics

Einstein still right

Research Highlight | Published: 05 July 2018<p>GRAVITY<p>Marios Karouzos<p><i>Nature Astronomy</i> (2018) | Download Citation<p>Subjects<p>Compact astrophysical …

Google Scholar

Triple-Star Test Shows Einstein Was Right, Again

A natural stellar laboratory probes a prediction of general relativity to unprecedented precision

Science

Quantum Woo in Parapsychology

Etzel Cardeña has published an extensive review of parapsychology concluding that it is both plausible and supported by evidence. It stands, in my …

Quantum Mechanics

Einstein's theory of relativity proven right in huge space experiment

Gravity works as expected, even at the biggest scales, a new study has found.<p>The research proves Einstein right at an almost unimaginably huge scale …

Physics