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Aug 15, 2024

“Virtual Reality Is GENUINE Reality“ | David Chalmers Mindfest Lecture

Posted by in categories: neuroscience, virtual reality

Philosopher and cognitive scientist David Chalmers explores virtual reality and its implication for our understanding of existence. Chalmers examines the simulation hypothesis, challenging conventional views of reality and suggesting that virtual worlds might be as real and meaningful as the physical world. This is a thought-provoking lecture at MindFest, held at Florida Atlantic University, CENTER FOR THE FUTURE MIND, spearheaded by Susan Schneider.

TIMESTAMPS:
00:00 — Intro.
01:34 — Overview.
11:55 — David’s Central Thesis.
15:55 — Biosim vs. Pure Sim.
18:11 — Imperfect vs. Perfect Simulation.
26:38 — Are Simulations Illusions?
31:29 — It-From-Bit Hypothesis.
36:06 — What Is The Metaverse?
43:58 — Meaning In A Virtual World.
51:49 — Q\&A
01:06:43 — Outro.

Continue reading “‘Virtual Reality Is GENUINE Reality‘ | David Chalmers Mindfest Lecture” »

Aug 15, 2024

Law of “Infodynamics” Supports Theory That We Are Living in a Simulation

Posted by in categories: computing, Elon Musk, physics

A University of Portsmouth physicist has explored whether a new law of physics could support the much-debated theory that we are simply characters in an advanced virtual world.

The simulated universe hypothesis proposes that what humans experience is actually an artificial reality, much like a computer simulation, in which they themselves are constructs.

The theory is popular among a number of well-known figures including Elon Musk, and within a branch of science known as information physics, which suggests physical reality is fundamentally made up of bits of information.

Aug 15, 2024

Topology Makes On-Chip Terahertz Beamforming a Reality

Posted by in category: computing

A new silicon topological beamformer chip can beam terahertz frequency wireless signals in any direction.

Terahertz waves are located between optical waves and microwaves on the electromagnetic spectrum.


The achievement could open a new swath of spectrum for wireless networks.

Continue reading “Topology Makes On-Chip Terahertz Beamforming a Reality” »

Aug 15, 2024

An ocean’s worth of water may be hiding under Mars’ red dusty surface, study suggests

Posted by in category: space

This throws a curveball in my brain regarding UAPs.


A new study suggests Mars may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to form a global ocean.

Aug 15, 2024

Physicists throw world’s smallest disco party with a levitating ball of fluorescent nanodiamond

Posted by in categories: energy, nanotechnology, quantum physics

“This breakthrough helps us better understand and study the fascinating world of quantum physics,” he says.

The fluorescent nanodiamonds, with an average diameter of about 750 nm, were produced through high-pressure, high-temperature synthesis. These diamonds were irradiated with high-energy electrons to create nitrogen-vacancy color centers, which host electron spin qubits.

When illuminated by a green laser, they emitted red light, which was used to read out their electron spin states. An additional infrared laser was shone at the levitated nanodiamond to monitor its rotation. Like a disco ball, as the nanodiamond rotated, the direction of the scattered infrared light changed, carrying the rotation information of the nanodiamond.

Aug 15, 2024

New insights into neural circuit imaging: A comparison of one-photon and two-photon techniques

Posted by in categories: genetics, neuroscience

In the quest to unravel the complexities of neural circuits, scientists are beginning to use genetically encoded voltage indicators (GEVIs) to visualize electrical activity in the brain. These indicators are crucial for understanding how neurons communicate and process information. However, the effectiveness of one-photon (1P) versus two-photon (2P) voltage imaging has remained a topic of debate. A recent study by researchers at Harvard University sheds light on the relative merits and limitations of these two imaging techniques, providing valuable insights for the scientific community.

Aug 15, 2024

Electromagnetic vortex cannon could enhance communication systems

Posted by in category: physics

Vortex rings, a mysterious and fascinating natural phenomenon, display breathtaking structures and behaviors in both air and electromagnetic waves. Imagine an air cannon that can shoot vortex rings, creating a perfect air vortex that travels gracefully through the air as if an invisible hand is sketching an elegant curve in the sky. This vortex phenomenon is not just a spectacle of physics but a masterpiece of nature.

Aug 15, 2024

New semiconductor material AlYN promises more energy-efficient and powerful electronics

Posted by in categories: chemistry, energy, physics

Due to its excellent material properties and its adaptability to gallium nitride (GaN), AlYN has enormous potential for use in energy-efficient high-frequency and high-performance electronics for information and communications technology.

Aluminum yttrium nitride (AlYN) has attracted the interest of many research groups around the world due to its outstanding material properties. However, the growth of the material has been a major challenge. Until now, AlYN could only be deposited by magnetron sputtering.

Researchers at the Fraunhofer Institute for Applied Solid State Physics IAF have now succeeded in fabricating the new material using metal-organic chemical vapor deposition (MOCVD) technology, thus enabling the development of new, diverse applications.

Aug 15, 2024

Researchers discover new way to purify liquid argon for neutrino experiments

Posted by in category: particle physics

Construction workers have finished the excavation of the huge caverns that will house the international Deep Underground Neutrino Experiment. While engineers and technicians are preparing for the installation of the gigantic neutrino detectors into these caverns a mile underground, scientists around the world are working to optimize DUNE’s particle detector technology.

Aug 15, 2024

‘Mirror’ nuclei help connect nuclear theory and neutron stars

Posted by in categories: nuclear energy, particle physics, space

Adding or removing neutrons from an atomic nucleus leads to changes in the size of the nucleus. This in turn causes tiny changes in the energy levels of the atom’s electrons, known as isotope shifts. Scientists can use precision measurements of these energy shifts to measure the radius of the nucleus of an isotope.

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