background preloader

Physics

Facebook Twitter

Scientists observe how magnetism affects human cells. Scientists suspect quantum effects are behind animals' ability to perform geomagnetic navigation.Geomagnetic navigation is believed to be light-based.Researchers watch as magnet-induced quantum changes affect cells' luminescence.

Scientists observe how magnetism affects human cells

We know at this point that there are species that can navigate using the Earth's magnetic field. Birds use this ability in their long-distance migrations, and the list of such species keeps getting longer, now including mole rats, turtles, lobsters, and even dogs. But exactly how they can do this remains unclear. Is the Physical World a Neural Network? By Dr.

Is the Physical World a Neural Network?

Inés Urdaneta. Resonance Science Foundation Research Scientist In a former RSF article entitled Between the Generalized Holographic approach and Data Science, we addressed the potential of trained artificial neural networks to replace our scientific models, and the possibility of reality being a numerical simulation was discussed. Quantum Darwinism, which may explain our reality, passes tests.

A quantum experiment suggests there’s no such thing as objective reality. Wigner’s original thought experiment is straightforward in principle.

A quantum experiment suggests there’s no such thing as objective reality

It begins with a single polarized photon that, when measured, can have either a horizontal polarization or a vertical polarization. But before the measurement, according to the laws of quantum mechanics, the photon exists in both polarization states at the same time—a so-called superposition. Wigner imagined a friend in a different lab measuring the state of this photon and storing the result, while Wigner observed from afar. Wigner has no information about his friend’s measurement and so is forced to assume that the photon and the measurement of it are in a superposition of all possible outcomes of the experiment.

Wigner can even perform an experiment to determine whether this superposition exists or not. Scientists 'have found a FIFTH force of nature' Scientists claim they have observed a fifth force of nature that could transform our understanding of how the universe works.

Scientists 'have found a FIFTH force of nature'

Naukowiec prostą techniką zrobił „zdjęcia” dźwięków. Efekt jest niesamowity - Magazyn HIRO. Quantum Darwinism Could Explain What Makes Reality Real. If You Thought Quantum Mechanics Was Weird, You Need to Check Out Entangled Time. In the summer of 1935, the physicists Albert Einstein and Erwin Schrödinger engaged in a rich, multifaceted and sometimes fretful correspondence about the implications of the new theory of quantum mechanics. The focus of their worry was what Schrödinger later dubbed entanglement: the inability to describe two quantum systems or particles independently, after they have interacted. Until his death, Einstein remained convinced that entanglement showed how quantum mechanics was incomplete. Physics Is Pointing Inexorably to Mind. In his 2014 book, Our Mathematical Universe, physicist Max Tegmark boldly claims that “protons, atoms, molecules, cells and stars” are all redundant “baggage.”

Physics Is Pointing Inexorably to Mind

Only the mathematical apparatus used to describe the behavior of matter is supposedly real, not matter itself. For Tegmark, the universe is a “set of abstract entities with relations between them,” which “can be described in a baggage-independent way”—i.e., without matter. He attributes existence solely to descriptions, while incongruously denying the very thing that is described in the first place. Matter is done away with and only information itself is taken to be ultimately real. This abstract notion, called information realism is philosophical in character, but it has been associated with physics from its very inception.

Indeed, according to information realists, matter arises from information processing, not the other way around. Sign up for Scientific American’s free newsletters. Sixty Symbols - Physics and Astronomy videos. The kilogram is forever changed. Here's why that matters. Sealed under a trio of nested glass bell jars, a gleaming metal cylinder sits in a temperature-controlled vault in the bowels of the International Bureau of Weights and Measures in Sèvres, France.

The kilogram is forever changed. Here's why that matters.

Dubbed Le Grande K, or Big K, this lonely hunk of platinum and iridium has defined mass around the globe for more than a century—from bathroom scales to medical lab balances. The Peculiar Math That Could Underlie the Laws of Nature. Quantum Theory Sheds Light On What Happens When We Die: The Afterlife. We're creating viewer supported news.

Quantum Theory Sheds Light On What Happens When We Die: The Afterlife

Become a member! The biggest question so many of us have in life, one that we have been seeking to answer for years, is what happens when we die? Even modern day science seeks to answer this question. Where does human consciousness come from and what is its origin? The illusion of reality: The scientific proof everything is energy and reality isn't real. How Quantum Mechanics Is Changing Everything We Know About Our Lives. Earth - Why there could be many identical copies of you. This story is nominated for a Webby Award for Best Film & Video.

Earth - Why there could be many identical copies of you

Vote here. BBC Earth is also nominated for a Webby, for Best Science Website. Vote here.

Time

Physicists Discover Geometry Underlying Particle Physics. Physicists have discovered a jewel-like geometric object that dramatically simplifies calculations of particle interactions and challenges the notion that space and time are fundamental components of reality.

Physicists Discover Geometry Underlying Particle Physics

PHYSICS MANIA: Three Reasearch Papers. The world is full of mystry but one of such mystry of nature was given by Einstein Sir in the mathematical form.

PHYSICS MANIA: Three Reasearch Papers

The theory or the mystry is non other than Theory of relativity. The world knows that it had contributed lot in the field of science that all science graduates are knowing it but the thing is I want all to understand this in the simpler form. So all will feel comfortable with the subjects like science and may some day new existance of modern Einstein Sir. His contribution is giving us so many facilities that without him some of the things which were never known. There are so many things which are following such principles as use of nuclear energy, photo energy, cosmology. Nothing Is Solid & Everything Is Energy – Scientists Explain The World Of Quantum Physics. Nothing is solid and everything is energy! It has been written about before, over and over again, but cannot be emphasized enough. The world of quantum physics is an eerie one, one that sheds light on the truth about our world in ways that challenge the existing framework of accepted knowledge.

What we perceive as our physical material world, is really not physical or material at all, in fact, it is far from it. This has been proven time and time again by multiple Nobel Prize (among many other scientists around the world) winning physicists, one of them being Niels Bohr, a Danish Physicist who made significant contributions to understanding atomic structure and quantum theory. Related Article: Quantum Theory Proves That Consciousness Moves To Another Universe After Death “If quantum mechanics hasn’t profoundly shocked you, you haven’t understood it yet. Little Progress Has Been Made Since Einstein On The Physics Of Time : 13.7: Cosmos And Culture. The star-forming area Messier 17, also known as the Omega Nebula or the Swan Nebula, is a vast region of gas, dust and hot young stars that lies in the heart of the Milky Way in the constellation of Sagittarius.

ESO/INAF-VST/OmegaCAM hide caption toggle caption. Bizarre fourth state of water discovered. You already know that water can have three states of matter: solid, liquid and gas. But scientists at the Oak Ridge National Lab (ORNL) have discovered that when it's put under extreme pressure in small spaces, the life-giving liquid can exhibit a strange fourth state known as tunneling. The water under question was found in super-small six-sided channels in the mineral beryl, which forms the basis for the gems aquamarine and emerald. The channels measure only about five atoms across and function basically as cages that can each trap one water molecule.

What the researchers found was that in this incredibly tight space, the water molecule exhibited a characteristic usually only seen at the much smaller quantum level, called tunneling. Basically, quantum tunneling means that a particle, or in this case a molecule, can overcome a barrier and be on both sides of it at once – or anywhere between.

Sources: Oak Ridge National Laboratory, Physics. Albert Einstein’s Theory of Relativity. New Quantum Theory Could Explain the Flow of Time. Cups of coffee cool, buildings crumble and stars fizzle out, physicists say, because of a strange quantum effect called “entanglement.” Photo: Stacy/Flickr. Sorry, Einstein. Quantum Study Suggests ‘Spooky Action’ Is Real. The Feynman Lectures on Physics.