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We May Soon Know How a Crucial Einstein Principle Works in The Quantum Realm

Strap yourselves in!<p>The puzzle of how Einstein's equivalence principle plays out in the quantum realm has vexed physicists for decades. Now two …

Quantum Mechanics

Universal apocalypse: This is how all of creation could end

The ultimate fate of the universe is a mind-bogglingly thing to think about. So what’s the final outcome for it all?<br>Read More

Black Holes

German Researchers Have Built a Quantum Transistor Using Just a Single Atom

A team of researchers at Germany’s Karlsruhe Institute of Technology have developed a quantum transistor using just a single atom, and capable of …

Quantum Computing

The Universe Is Disappearing, And There's Nothing We Can Do To Stop It

It’s been nearly a century since scientists first theorized that the Universe was expanding, and that the farther away a galaxy was from us, the faster it appears to recede. This isn’t because galaxies are physically moving away from us, but rather because the Universe is full of …

Galaxies

Is Gravity Quantum?

All the fundamental forces of the universe are known to follow the laws of quantum mechanics, save one: gravity. Finding a way to fit gravity into …

Quantum Physics

A New Study Has Determined That There May Be A Fatal Flaw With The Theory Of Emergent Gravity

Physicists have determined that holographic screens do not follow the same laws of thermodynamics that the horizons of black holes do.<p>While …

Quantum Mechanics

Ask Ethan: Is Spacetime Really A Fabric?

Gravity might have been the first fundamental force ever discovered, but in many ways, it remains the least-well understood. We know that it’s always attractive, and that any two masses in the Universe, no matter where they are, will experience its force. When Einstein concocted his general theory …

Physics

What Happens When Planets, Stars And Black Holes Collide?

The Universe as we know it has been around for nearly 14 billion years: plenty of time for gravity to pull matter into clusters, clumps, and collapsed objects. By the present day, the Universe is filled with planets, stars, galaxies, and even larger structures, all bound together against the …

Universe

NASA Spotted a Vast, Glowing 'Hydrogen Wall' at the Edge of Our Solar System

There's a "hydrogen wall" at the edge of our solar system, and NASA scientists think their New Horizons spacecraft can see it.<p>That hydrogen wall is …

Space

Dark Energy May Be Incompatible With String Theory

A controversial new paper argues that universes with dark energy profiles like ours do not exist in the “landscape” of universes allowed by string …

Physics

Will we ever be able to freeze time?

Stasis is a way of pausing physical and chemical processes – including those of life. It could be a way for us to save the critically ill, or allow ultra-long space missions.<p>The American poet Delmore Schwartz once wrote: “Time is the fire in which we burn.” We are born, we live and we die. Yet …

Theory of Relativity

High-speed electrons prove Einstein was right about the speed of light

If you are driving a car and match your speed to the vehicle in front, it will appear to slow down, relative to you. Albert Einstein said the same …

Physics

Spacetime Emergence, Panpsychism and the Nature of Consciousness

<b>As you read this, it feels like something to be you. You are seeing these words on the page and hearing the world around you, for instance. And all</b> …

Consciousness

Loopholes and the 'Anti-Realism' of the Quantum World

The theoretical physicist John Wheeler once used the phrase “great smoky dragon” to describe a particle of light going from a source to a photon …

Quantum Mechanics

What Was It Like When The Higgs Gave Mass To The Universe?

In the earliest stages of the hot Big Bang, the Universe was filled with all the particles, antiparticles, and quanta of radiation it had the energy to create. As the Universe expanded, it cooled: the stretching fabric of space also stretched the wavelengths of all the radiation within it to longer …

Physics

StratoLauncher IV Water Rocket Launcher Kit

Hope you've been drinking a lot of sodie lately because the StratoLauncher IV is jonesing to rocket the bottles it came in over 350' into the air.<p>The …

String Theory May Create Far Fewer Universes Than Thought

The problem with string theory, according to some physicists, is that it makes too many universes. It predicts not one but some 10500 versions of …

Dark Matter

Beyond Time

We conventionally think of time as something simple and fundamental. It flows uniformly, independent of everything else, from the past to the future, …

Physics

Mac: How to get the official Apple user guide for free

Whether you’re new to Mac, or just enjoy having the official user guide from Apple as a reference, having it on hand can be useful for yourself in addition to helping others.<p>Apple makes the official user guides for its devices available for free in digital formats. You can find physical copies from …

iOS

Ask Ethan: Where Does The 'Energy' For Dark Energy Come From?

If you have a Universe full of stuff — whether that’s atoms, dark matter, radiation, neutrinos, or anything else — it’s virtually impossible to keep it static. The fabric of your Universe, at least in General Relativity, must either expand or contract on the largest scales. But if you have a …

Universe

Greatest spritz: how a Venetian aperitif became the drink of the summer

Ironically, the spritz’s roots lie in hiding certain flavours rather than celebrating them<p>It took Russell Norman a glass or two of wine to ask what the locals were drinking. This was Venice in the mid-00s and, in the city’s back-street bars such as Caffe Rosso and All’Arco, Norman kept noticing big …

Serena Williams

There Was No Big Bang Singularity

Almost everyone has heard the story of the Big Bang. But if you ask anyone, from a layperson to a cosmologist, to finish the following sentence, “In the beginning, there was…” you’ll get a slew of different answers. One of the most common ones is “a singularity,” which refers to an instant where …

Universe

Black holes really just ever-growing balls of string, researchers say

"What we've shown in this new study is a flaw in the firewall argument," Mathur said.<p>Black holes are places in space with such immense gravitational …

Black Holes

There's A Debate Raging Over Whether Dark Matter Is Real, But One Side Is Cheating

Imagine I told you that everything you ever saw, touched, or experienced — in this world and in the Universe beyond — was just a tiny fraction of the matter that’s out there. That for every particle of normal matter that existed, there was at least five times as much, mass-wise, of a new form of …

Dark Matter

Star’s black hole encounter puts Einstein’s theory of gravity to the test

For more than 20 years, a team of astronomers has tracked a single star whipping around the supermassive black hole at the center of our galaxy at up …

Black Holes

Closed Loophole Confirms the Unreality of the Quantum World

After researchers found a loophole in a famous experiment designed to prove that quantum objects don’t have intrinsic properties, three experimental …

Quantum Physics

"Octonion" Math Could Underpin Physics

In 2014, a graduate student at the University of Waterloo, Canada, named Cohl Furey rented a car and drove six hours south to Pennsylvania State …

Meet the Woman Who Rocked Particle Physics—Three Times

In 1963, Maria Goeppert Mayer won the Nobel Prize in physics for describing the layered, shell-like structures of atomic nuclei. No woman has won …

Physics

What is consciousness?

What is being in love, feeling pain or seeing colour made of? How our brains make conscious experience has long been a riddle – but we’re uncovering …

Physics Needs Philosophy / Philosophy Needs Physics

<i>Contrary to claims about the irrelevance of philosophy for science, philosophy has always had, and still has, far more influence on physics than</i> …

Philosophy