Physics

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Highly Energetic Electrons Hit Earth from an Unusual Nearby Source

Physics /

Astrophysicists have detected the highest-energy electrons ever recorded, raining down on Earth from a mysterious nearby source. These cosmic rays carry trillions of times the energy of visible light, suggesting they originate from a powerful source relatively close to our solar system. Earth is constantly bombarded by cosmic radiation, primarily from our Sun. However, other […]

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Physicists Discover a Completely New Method for Measuring Time

Experimental Physics, Physics /

Measuring time in our world of ticking clocks and swinging pendulums is as straightforward as counting seconds between “then” and “now.” However, at the quantum scale, where electrons buzz unpredictably, “then” becomes difficult to pinpoint, and “now” often dissolves into uncertainty. In such cases, a traditional stopwatch is simply ineffective. A potential answer may lie

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Laser Experiment Shows Light Casting its Own Shadow

Experimental Physics, Physics /

A new experiment has demonstrated something seemingly impossible: light casting its own shadow. When a laser is manipulated in a specific way and illuminated side-on by another light source, it’s possible to create this unusual optical effect. While we’re used to seeing shadows in everyday life, they appear as dark areas on a surface where

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No, Chinese Quantum Computers Have not Broken Military-Grade Encryption

Quantum Physics /

Recent headlines claim Chinese researchers used D-Wave quantum computers to hack RSA, AES, and “military-grade encryption.” This is both true and misleading. A May 2024 white paper in the Chinese Journal of Computers details how researchers used D-Wave’s quantum annealing to factor RSA-protected integers using Ising and QUBO models. The paper reports successful decryption of

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Nobel Prize in Physics: How Hopfield and Hinton’s AI Transformed Our World

Physics /

If you’ve enjoyed an AI-generated video, fraud protection, or voice-to-text, you can thank scientists like physicist John Hopfield and computer scientist Geoffrey Hinton. On Oct. 8, 2024, they received the Nobel Prize in Physics for their pioneering work on artificial neural networks, which, though inspired by biology, relied heavily on statistical physics. How neurons compute

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Scientists Finally Uncover What Really Happens When an Atom Splits

Experimental Physics, Physics /

The term “atom,” derived from Latin for “indivisible,” can be misleading. A recent simulation by U.S. theoretical physicists has provided a detailed microscopic view of how an atom splits in two, shedding light on an energetic event that has significantly impacted science and technology. In 1938, physicists Otto Hahn, Lise Meitner, and Fritz Strassmann demonstrated

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Physicists Create Sound Waves That Move Exclusively in One Direction

Physics /

Imagine three people arranged in a circle, where each can only hear one other directly. Scientists have created a device that directs sound waves in just this way, allowing them to travel in a single direction only. Developed by researchers at ETH Zurich and the Swiss Federal Institute of Technology Lausanne, the device consists of

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Nuclear Fusion vs. Fission: A Physicist Clarifies the Distinction

Physics /

Nuclear power generates about 10% of the world’s electricity, with countries like France relying on it for nearly 70%. Tech giants like Google are also turning to nuclear energy to power their demanding data centers. The energy for nuclear power comes from atomic binding energy, released through two primary processes: fission and fusion. Fission splits

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High School Students Publish Impossible Proofs of Pythagoras Theorem

Physics /

What started as a bonus question in a high school math competition has led to an astonishing 10 new proofs of the ancient Pythagorean theorem. It has long been considered impossible to use trigonometry to demonstrate a theorem that is foundational to trigonometric principles, as this creates a logical fallacy of circular reasoning by attempting

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Study Proposes Diamond Injection to Cool the Planet

Physics, Science /

Heist movies are rarely about solving climate change, and for good reason. It’s hard to imagine George Clooney racing down the highway with a truckload of stolen diamonds, saying, “Hey, let’s crush these sparkly gems into powder and scatter them through the stratosphere to cool the planet.” Calculating Diamonds for Global Cooling However, a team

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