Cupcake

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Nathan Rosen - Wormholes and Time Travel

Artist impression of a Schwarzschild wormhole<p>On March 22, 1909, US-American physicist <b>Nathan Rosen</b> was born. He is best known for his cooperation …

Theoretical quark fusion found to be more powerful than hydrogen fusion

(Phys.org)—A pair of researchers with Tel Aviv University and the University of Chicago has found evidence suggesting that fusing quarks can release …

Physicists make rapid progress in bounding the speed of gravity

(Phys.org)—Recent gravitational wave detections have allowed physicists to confirm with greater and greater precision what Einstein predicted over …

Scientist Find Treasure Trove of Giant Black Hole Pairs

For decades, astronomers have known that Supermassive Black Holes (SMBHs) reside at the center of most massive galaxies. These black holes, which …

Drop the Doughnut: True Nature of Ravenous Supermassive Black Holes Revealed

Some galaxies contain supermassive black holes that are voracious eaters, consuming gas, dust and anything else that strays too close, including …

A new gravitational wave detector called Virgo just made a major breakthrough

Less than a year ago, scientists confirmed the existence of gravitational waves, Albert Einstein’s century-old theory that describes “disturbances in …

Albert Einstein

Confirmed: A Huge Gravitational Wave Announcement Is Happening

What a time to be alive.<p><b>Update 27/09/17:</b> The biggest rumour did not pan out, but the LIGO team announced something just as amazing - the most …

What Is Luminosity?

How bright is a star? A planet? A galaxy? When astronomers want to answer those questions, they express the brightnesses using the term "luminosity". …

What Is a Photon in Physics?

Photons Are a "Bundle of Energy"<p>A <i>photon</i> is a particle of light defined as a discrete bundle (or <i>quantum</i>) of electromagnetic (or light) energy. Photons …

The 4 Fundamental Forces of Physics

The fundamental forces (or fundamental interactions) of physics are the ways that individual particles interact with each other. It turns out that …

Solving Apparent Violation Of Relativity Leads To New Way To Derive Einstein's Famous Equation

Earlier this year, researchers discovered that photon-emitting atoms moving through a vacuum experienced a friction-like force never detected before. …

Inside a super fast CSS engine: Quantum CSS (aka Stylo)

You may have heard of Project Quantum… it’s a major rewrite of Firefox’s internals to make Firefox fast. We’re swapping in parts from our …

So You Want to Learn Physics...

What is time?

What Is Time?

Physicist Mahdi Gogazgar on the arrow of time, Schrödinger equation, and Einstein's relativity theory

"Eternalism (philosophy of time)" on Revolvy.com

Eternalism is a philosophical approach to the ontological nature of time, which takes the view that all existence in time is equally real, as opposed …

Einstein's Theory of General Relativity

In 1905, Albert Einstein determined that the laws of physics are the same for all non-accelerating observers, and that the speed of light in a vacuum …

Albert Einstein

Definition of Time

Time is something we deal with every day, and something that everyone thinks they understand. However, a <b>compact and robust definition</b> of time has …

On the Electrodynamics of Moving Bodies

ON THE ELECTRODYNAMICS<br>OF MOVING BODIES<p>By A. Einstein<br>June 30, 1905<p>It is known that Maxwell's electrodynamics—as usually understood at the present …

Relativistic Time

Since <b>Albert Einstein</b> published his <b>Theory of Relativity</b> (the <b>Special Theory</b> in 1905, and the <b>General Theory</b> in 1916), our understanding of time has …

Physics of Time

<b>Physics</b> is the only science that explicitly studies time, but even physicists agree that time is one of the most difficult properties of our universe …

Time

For the concept in physics, see Time in physics. For the magazine, see Time (magazine). For other uses, see Time (disambiguation).<p><b>Time</b> is the …

Teoria da Relatividade de Einstein - Física

A Evolução da Ciência<p>O conhecimento científico não permanece igual ao longo dos anos. O que é considerado verdade hoje, pode não ser no futuro. Há 6 …

Viagens no Tempo | Relatividade

ERA UMA VEZ UMA GAROTA ESPERTA<p>There was a young lady named,<br>Bright Who traveled much faster than light.<br>She started one day<br>In the relative way,<br>And …

Time Travel: Theories, Paradoxes & Possibilities

Time travel — moving between different points in time — has been a popular topic for science fiction for decades. Franchises ranging from "Doctor …

Physics