Hacker News with Generative AI: Physics

The Fourier Transform: A tutorial introduction (sheffield.ac.uk)
The Fourier Transform is a fundamental tool in the physical sciences, with applications in communications theory, electronics, engineering, biophysics and quantum mechanics.

Mathematics, Signal Processing, Education, Physics

4 points by teleforce 12 hours ago | 1 comments

A dramatic Einstein ring seen by Webb (phys.org)
One of the first verified predictions of general relativity is the gravitational deflection of starlight.

Space, Astronomy, Physics, General Relativity

119 points by programd 1 day ago | 28 comments

Electron band structure in germanium, my ass (2001) (cs.wisc.edu)
The exponential dependence of resistivity on temperature in germanium is found to be a great big lie.

Semiconductors, Materials Science, Physics

897 points by tux3 3 days ago | 400 comments

CERN scientists find evidence of quantum entanglement in sheep (home.cern)
CERN scientists find evidence of quantum entanglement in sheep

Physics, Quantum Mechanics, Biology, Science

334 points by mackopes 3 days ago | 107 comments

MIT Physicist's "Torpedo Bat" Sparks MLB Power Surge (nytimes.com)
Why ‘torpedo bats’ have players across MLB intrigued after Yankees’ power surge

Baseball, Physics, Sports

5 points by tmshapland 3 days ago | 0 comments

Can Earth's rotation generate power? Physicists divided over controversial claim (nature.com)
Electricity can be generated from the energy of Earth rotating through its own magnetic field — according to a provocative claim put forward by physicists today.

Physics, Energy, Earth Science, Controversial Claims

106 points by qnleigh 4 days ago | 217 comments

Efficient light control: Meta-optics replace conventional lenses (phys.org)
Conventional curved lenses, which direct light by refraction in glass or plastic, are often bulky and heavy, offering only limited control of light waves.

Physics, Optics, Nanotechnology, Metamaterials

36 points by bookofjoe 4 days ago | 7 comments

"Physics community has never split like this": row erupts over plans for new LHC (theguardian.com)
Scientists are refining plans to build the world’s biggest machine at a site beneath the Swiss-French border.

Physics, Science, CERN, International Collaboration

29 points by pseudolus 5 days ago | 4 comments

Electric power generation from Earth's rotation through its own magnetic field (arxiv.org)
Earth rotates through the axisymmetric part of its own magnetic field, but a simple proof shows that it is impossible to use this to generate electricity in a conductor rotating with this http URL, we previously identified implicit assumptions underlying this proof and showed theoretically that these could be violated and the proof circumvented.

Physics, Electricity, Magnetism, Earth Science

42 points by PaulHoule 5 days ago | 7 comments

Can Musk put people on Mars? (economist.com)
HUMAN LAWS can be changed, waived or broken. Physical laws are less biddable. When it comes to putting humans on Mars, which he sees as the first step towards the planet’s settlement and humankind’s salvation, Elon Musk now has little to worry about from human law.

Space Exploration, Elon Musk, Mars, Physics, Human Law

9 points by pseudolus 5 days ago | 4 comments

Symmetry between up and down quarks is more broken than expected (phys.org)
In late 2023, Wojciech Brylinski was analyzing data from the NA61/SHINE collaboration at CERN for his thesis when he noticed an unexpected anomaly—a strikingly large imbalance between charged and neutral kaons in argon–scandium collisions.

Physics, Particle Physics, CERN, Scientific Discovery

87 points by terminalbraid 6 days ago | 28 comments

Physics-Based Deep Learning v4 (arxiv.org)
This document is a hands-on, comprehensive guide to deep learning in the realm of physical simulations.

Deep Learning, Physics, Machine Learning

5 points by __rito__ 7 days ago | 1 comments

Physicists discover a copper-free high-temperature superconducting oxide (phys.org)
Professor Ariando and Dr. Stephen Lin Er Chow from the National University of Singapore (NUS) Department of Physics have designed and synthesized a groundbreaking new material—a copper-free superconducting oxide—capable of superconducting at approximately 40 Kelvin (K), or about minus 233°C, under ambient pressure.

Physics, Superconductivity, Materials Science

7 points by bookofjoe 7 days ago | 2 comments

Beyond Bohr and Einstein (cerncourier.com)
One hundred years of insights Jim Baggott and John Heilbron don’t neglect later quantum pioneers like John Bell (pictured). Credit: CERN

Physics, Science, History, Quantum Mechanics

49 points by mathgenius 8 days ago | 5 comments

Certified randomness using a trapped-ion quantum processor (nature.com)
Although quantum computers can perform a wide range of practically important tasks beyond the abilities of classical computers1,2, realizing this potential remains a challenge.

Quantum Computing, Science, Physics, Randomness

27 points by wahsmail 8 days ago | 18 comments

Moiré Than Meets the Eye: Uncovering the Quantum Potential of Phasons (newscenter.lbl.gov)
Researchers have discovered that phasons, low-temperature quasiparticles found in crystal lattices, enable interlayer excitons to move at very low temperatures, when motion should stop.

Quantum Mechanics, Physics, Materials Science, Cryogenics

24 points by gnabgib 10 days ago | 2 comments

Legacy of the Angels (aeon.co)
When medieval scholars sought to understand the nature of angels, they unwittingly laid the foundations of modern physics

Medieval History, Physics, Philosophy, Angels

4 points by benbreen 12 days ago | 0 comments

Mathematical Methods for Physics [pdf] (imperial.ac.uk)

Mathematics, Physics, Education

130 points by ibobev 12 days ago | 42 comments

Paul A. M. Dirac, Interview by Friedrich Hund (1982) [video] (youtube.com)

Physics, History, Interviews, Video

123 points by mdp2021 12 days ago | 27 comments

CO2 laser enables long-range detection of radioactive material (physicsworld.com)
Researchers have demonstrated that they can remotely detect radioactive material from 10 m away using short-pulse CO2 lasers – a distance over ten times farther than achieved via previous methods.

Physics, Lasers, Radioactive Materials

113 points by EA-3167 13 days ago | 23 comments

Experimental test of the nonlocal energy alteration between two quantum memories (phys.org)
Researchers at Shanghai Jiao Tong University and Hefei National Laboratory recently carried out a study aimed at testing this theoretical prediction experimentally using two quantum memories.

Quantum Computing, Physics, Experimental Science

3 points by westurner 13 days ago | 1 comments

Physics-based Deep Learning Book (v0.3, the GenAI edition) (physicsbaseddeeplearning.org)
Welcome to the Physics-based Deep Learning Book (v0.3, the GenAI edition) 👋

Deep Learning, Physics, Generative AI, Books, Machine Learning

5 points by MAXPOOL 14 days ago | 0 comments

Spaghetti science: What pasta reveals about the universe (bbc.com)
When you see pasta, your brain probably doesn't jump to the secrets of the universe. But for almost a century, world-leading physicists have puzzled over spaghetti's counterintuitive properties.

Physics, Science, Food, Universe

48 points by pseudolus 14 days ago | 16 comments

LED's Efficiency Exceeds 100% (2012) (phys.org)
For the first time, researchers have demonstrated that an LED can emit more optical power than the electrical power it consumes.

LEDs, Physics, Efficiency, Energy

42 points by thunderbong 14 days ago | 34 comments

Understanding Solar Energy (construction-physics.com)
The biggest energy story of the last fifteen years is the rise of solar photovoltaics, also known as solar PV or simply solar panels.

Solar Energy, Renewable Energy, Construction, Physics

261 points by chmaynard 15 days ago | 258 comments

Dark Energy experiment challenges Einstein's theory of Universe (bbc.com)
The mysterious force called Dark Energy, which drives the expansion of the Universe, might be changing in a way that challenges our current understanding of time and space, scientists have found.

Cosmology, Physics, Science, Einstein, Dark Energy

4 points by ViktorRay 15 days ago | 0 comments

Is Dark Energy Getting Weaker? New Evidence Strengthens the Case (quantamagazine.org)
Last spring, a team of nearly 1,000 cosmologists announced that dark energy — the enigmatic agent propelling the universe to swell in size at an ever-increasing rate — might be slackening.

Cosmology, Dark Energy, Physics, Science

32 points by pseudolus 15 days ago | 12 comments

Hearing the Shape of a Drum (wikipedia.org)
To hear the shape of a drum is to infer information about the shape of the drumhead from the sound it makes, i.e., from the list of overtones, via the use of mathematical theory.

Mathematics, Physics, Acoustics

5 points by julkali 16 days ago | 0 comments

Newton, an Open-Source Physics Engine for Robotics Simulation (nvidia.com)
Physical AI models enable robots to autonomously perceive, interpret, reason, and interact with the real world. Accelerated computing and simulations are key to developing the next generation of robotics.

Robotics, Simulation, Open Source, Physics

13 points by davidwihl 16 days ago | 1 comments

Want even tinier chips? Use a particle accelerator (economist.com)
Semiconductor chips are among the smallest and most detailed objects humans can manufacture. Shrinking the scale and upping the complexity is a fight against the limits of physics, and optical lithography—etching nanometre-scale patterns onto silicon with short-wavelength light—is its most extreme frontier.

Semiconductors, Nanotechnology, Physics, Manufacturing

65 points by jdaw0 17 days ago | 72 comments