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Archive for the ‘cosmology’ category: Page 95

Aug 15, 2023

Could white holes actually exist?

Posted by in categories: cosmology, singularity

Black holes seem to get all the attention. But what about their mirror twins, white holes? Do they exist? And, if so, where are they?

To understand the nature of white holes, first we have to examine the much more familiar black holes. Black holes are regions of complete gravitational collapse, where gravity has overwhelmed all other forces in the universe and compressed a clump of material all the way down to an infinitely tiny point known as a singularity. Surrounding that singularity is an event horizon, which is not a physical, solid boundary, but simply the border around a singularity where the gravity is so strong that nothing, not even light, can escape.

Aug 15, 2023

Can we understand the universe? | Sheldrake & Hossenfelder go head to head on dark matter IN FULL

Posted by in categories: cosmology, neuroscience, particle physics, quantum physics

Sabine Hossenfelder, Rupert Sheldrake and Bjorn Ekeberg go head to head on consciousness, panpsychism, physics and dard matter.

Watch more fiery contenet at https://iai.tv?utm_source=YouTube&utm_medium=description&utm…e-universe.

Continue reading “Can we understand the universe? | Sheldrake & Hossenfelder go head to head on dark matter IN FULL” »

Aug 14, 2023

Gravitational waves show black holes prefer certain masses before they collide

Posted by in categories: cosmology, physics

A preference for “universal masses” 9 and 16 times the mass of our Sun have been identified in the gravitational-wave events detected so far.

Aug 14, 2023

A quantum leap in mechanical oscillator technology

Posted by in categories: computing, cosmology, quantum physics

Over the past decade, scientists have made tremendous progress in generating quantum phenomena in mechanical systems. What seemed impossible only fifteen years ago has now become a reality, as researchers successfully create quantum states in macroscopic mechanical objects.

By coupling these mechanical oscillators to light photons—known as “optomechanical systems”—scientists have been able to cool them down to their lowest energy level close to the , “squeeze them” to reduce their vibrations even further, and entangle them with each other. These advancements have opened up new opportunities in , compact storage in quantum computing, fundamental tests of quantum gravity, and even in the search for dark matter.

In order to efficiently operate optomechanical systems in the quantum regime, scientists face a dilemma. On one hand, the mechanical oscillators must be properly isolated from their environment to minimize ; on the other hand, they must be well-coupled to other such as electromagnetic resonators to control them.

Aug 11, 2023

New Theory Suggests Quantum Entanglement And Wormholes Are Linked Together

Posted by in categories: computing, cosmology, particle physics, quantum physics

Practical applications for quantum entanglement have already been proposed, as entangled particles have been suggest for use in powerful quantum computers and “impossible” to crack networks. Now, it seems quantum entanglement may be linked to wormholes.

Entangled wormholes.

Aug 11, 2023

Webb reveals colors, features of most distant star ever detected

Posted by in category: cosmology

Webb’s NIRCam (Near-Infrared Camera) instrument reveals the star, nicknamed Earendel, to be a massive B-type star more than twice as hot as our sun, and about a million times more luminous. (Image: NASA, ESA, CSA, D. Coe (STScI/AURA for ESA; Johns Hopkins University), B. Welch (NASA’s Goddard Space Flight Center; University of Maryland, College Park). Image processing: Z. Levay.)

The star in the very distant universe, and a billion years after the big bang, was captured by the observatory’s Near-InfraRed Camera instrument.

Aug 11, 2023

New physics or not? I’ll sort it out for you

Posted by in categories: cosmology, particle physics, quantum physics

All this and stamp collecting?paraphrase Lord Kelvin.


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Aug 10, 2023

What Is The Basic Relationship Between Quantum Physics & Quantum Computers?

Posted by in categories: cosmology, mathematics, particle physics, quantum physics, supercomputing

There is increasing talk of quantum computers and how they will allow us to solve problems that traditional computers cannot solve. It’s important to note that quantum computers will not replace traditional computers: they are only intended to solve problems other than those that can be solved with classical mainframe computers and supercomputers. And any problem that is impossible to solve with classical computers will also be impossible with quantum computers. And traditional computers will always be more adept than quantum computers at memory-intensive tasks such as sending and receiving e-mail messages, managing documents and spreadsheets, desktop publishing, and so on.

There is nothing “magic” about quantum computers. Still, the mathematics and physics that govern their operation are more complex and reside in quantum physics.

The idea of quantum physics is still surrounded by an aura of great intellectual distance from the vast majority of us. It is a subject associated with the great minds of the 20th century such as Karl Heisenberg, Niels Bohr, Max Planck, Wolfgang Pauli, and Erwin Schrodinger, whose famous hypothetical cat experiment was popularized in an episode of the hit TV show ‘The Big Bang Theory’. As for Schrodinger, his observations of the uncertainty principle, serve as a reminder of the enigmatic nature of quantum mechanics. The uncertainty principle holds that the observer determines the characteristics of an examined particle (charge, spin, position) only at the moment of detection. Schrödinger explained this using the theoretical experiment, known as the paradox of Schrödinger’s cat. The experiment’s worth mentioning, as it describes one of the most important aspects of quantum computing.

Aug 10, 2023

Webb telescope reveals colors of Earendel, most distant star ever detected

Posted by in categories: cosmology, futurism

Detecting extremely distant stars, or those closest in time to the big bang, can provide insights into the first few chapters of the history of our universe. In 2022, the Hubble Space Telescope broke its own record, and spotted the most distant star yet. This star, nicknamed Earendel, emitted its light within the universe’s first billion years.

Spotting, and confirming, the distance of the star is just the beginning, though. That’s where NASA’s James Webb Space Telescope comes in. Webb’s initial observations of Earendel have revealed insights into the star’s type, and even the galaxy surrounding the star. Future analysis of Webb spectroscopic observations of Earendel and its host galaxy, the Sunrise Arc, could also reveal information about brightness, temperature, and composition.

NASA’s James Webb Space Telescope has followed up on observations by the Hubble Space Telescope of the farthest star ever detected in the very distant universe, within the first billion years after the . Webb’s NIRCam (Near-Infrared Camera) instrument reveals the star to be a massive B-type star more than twice as hot as our sun, and about a million times more luminous.

Aug 9, 2023

Quantum 101 Episode 6: Quantum Probability Explained

Posted by in categories: cosmology, quantum physics

When Albert Einstein famously said “God does not play dice with the universe” he wasn’t objecting to the idea that randomness exists in our everyday lives.

What he didn’t like was the idea that randomness is so essential to the laws of physics, that even with the most precise measurements and carefully controlled experiments there would always be some level at which the outcome is effectively an educated guess. He believed there was another option.

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