physics Archives - Disasters News

Jan22025 by Editor DeskNo Comments

Scientists Demonstrate ‘Negative Time’ in Quantum Breakthrough

Researchers at the University of Toronto have achieved a remarkable milestone, demonstrating "negative time" in a cutting-edge quantum experiment. This phenomenon, where light seems to emerge from a material before entering it, challenges long-held notions about the flow of time and opens new doors to understanding quantum mechanics. The research focused on atomic excitation a process where photons absorbed by atoms elevate electrons to higher energy levels. Typically, when these electrons return to their original states, they release the absorbed energy, causing a time delay in the photons' transit. However, the Toronto team observed an unexpected twist: photons behaved as if atoms spent a "negative amount of time" in their excited states. This startling finding suggests that time, ...

Dec282024 by Editor DeskNo Comments

Scientists Achieve Quantum Teleportation Over Fibre Optic Cables

Breaking News, Learning & Developments, Tech

In a landmark scientific breakthrough, researchers have successfully demonstrated quantum teleportation using existing fibre optic cables that carry everyday internet traffic. While the term “quantum teleportation” may evoke images of human transportation akin to science fiction, the reality involves the instantaneous transfer of information over vast distances using quantum mechanics. The pioneering study, led by Prem Kumar of Northwestern University, Illinois, represents a monumental leap toward integrating quantum communication with traditional networks. Quantum teleportation relies on a phenomenon known as "quantum entanglement," where two particles, regardless of their separation, share an invisible link. Changes in one particle instantaneously affect its entangled partner, enablin...

Dec112024 by Editor DeskNo Comments

Big Bang to Boundless Expansion: A Physicist’s Guide to the Ever-Growing Universe

Breaking News, Space

Have you ever tried to imagine how the Universe expands? Picture baking a muffin. As it bakes, the batter rises, and chocolate chips spread apart. The Universe’s expansion works similarly except there's no pan or edge. It grows into itself, an idea that’s as fascinating as it is hard to grasp. Unlike a muffin expanding into a baking pan, the Universe doesn’t expand into anything. It’s all dough no pan. Even if a pan existed, it would also be part of the Universe and would expand with it. This concept is mind-boggling because it’s so different from anything we experience in daily life. It’s like asking what’s farther north than the North Pole. Yet scientists define the Universe’s expansion by observing galaxies moving away from us, not by needing something for the Universe to expand i...

Dec92024 by Editor DeskNo Comments

Indian Astronomers Detect Ultraviolet Emissions from Novae in Andromeda

Breaking News, Space

Astronomers from the Indian Institute of Astrophysics (IIA) have achieved a groundbreaking discovery, detecting far ultraviolet (FUV) emissions from novae in the Andromeda galaxy for the first time. Novae are transient astronomical phenomena marked by a sudden outburst of light from a star-like object, which gradually fades over time. Using data from the Ultraviolet Imaging Telescope (UVIT) aboard India's AstroSat, the IIA team identified these emissions while analyzing archival observations of Andromeda. AstroSat, India’s first dedicated space observatory, features UVIT as a key payload developed by IIA. During their study, the team uncovered ultraviolet emissions from 42 novae in Andromeda, including four captured during their explosive outburst phase. This discovery is significant...

Nov162024 by Editor DeskNo Comments

Time Travel: New Research Suggests It’s Possible Without Paradoxes

Breaking News, Idea & Innovations, Learning & Developments, Space

The concept of time travel has long captivated the human imagination, inspiring countless films and theories. But a 2020 study led by Germain Tobar, a physics student at the University of Queensland, suggests that time travel could theoretically work without creating the infamous "grandfather paradox." This paradox challenges the logic of time travel: if someone went back in time and prevented their grandparents from meeting, their own existence and thus the possibility of time travel would be erased. However, Tobar's calculations indicate that the universe might naturally adapt to prevent such contradictions. For example, if a time traveler attempted to stop a disease from spreading, Tobar's research suggests the disease would still emerge through a different route, ensuring history...

Oct302024 by Editor DeskNo Comments

New Study Reveals Flaws in Climate Models: Future Permafrost Loss in Asia’s ‘Frozen Giants’ Less Severe Than Predicted

Breaking News, Climate Actions, Environment

In a groundbreaking study, scientists from the Institute of Atmospheric Physics at the Chinese Academy of Sciences have exposed significant overestimations in climate models predicting permafrost loss in High Mountain Asia (HMA). Known for its vast frozen carbon reserves, HMA has been at the center of global climate concerns. However, the latest research reveals that by fine-tuning model sensitivity to align with realistic warming projections, the feared permafrost degradation may be significantly less severe than previously believed. The study, published in Geophysical Research Letters, finds that previous climate models with overly high equilibrium climate sensitivity (ECS) levels have led to exaggerated warming predictions, distorting forecasts for permafrost loss across HMA. With ne...