Physics

The lost interview with Big Bang's father reveals an amazing conversation

The lost interview with Big Bang’s father reveals an amazing conversation

In 1931, a Belgian cosmologist named Georges Lemaître shocked the world of astronomy. Perhaps, he reasoned in a provocative paper, our massive cosmic expanse began as a singular, tiny point some 14 billion years ago. However, he continued, this point probably exploded, eventually expanding into the vast realm we call the universe — a realm …

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Researchers have discovered a new quantum state

Researchers have discovered a new quantum state

Cryostat used to reach temperatures up to 20 millikelvin. Credit: HZDR/Jürgen Jeibmann An engaging research team[{” attribute=””>Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has discovered a quantum state where water remains liquid even at extremely low temperatures. The team, consisting of experts from the Institute of Solid State Physics at the University of Tokyo in Japan, Johns Hopkins University …

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A method for modifying the mechanical and transport properties of conductive polymers

A method for modifying the mechanical and transport properties of conductive polymers

Proposed chemical and morphological evolution of conductive polymers. a–c, Schematic illustration of arrangements of polymer chains in rigid, rod-like conducting polymers (a); multifunctional conducting polymers (b) and multifunctional conducting polymers with HOS (c). Credit: Zhu et al. (Nature’s energy2023). Conductive polymers, synthetic substances with large molecules that can conduct electricity, can have a wide range …

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Physicists used sound waves to give a tiny sun its own kind of gravity: ScienceAlert

Physicists used sound waves to give a tiny sun its own kind of gravity: ScienceAlert

Scientists have a problem when it comes to modeling space events inside labs: Earth’s gravity tends to get in the way, making it difficult to reproduce environments far from our planet. A recently proposed solution takes the form of a tiny glass ball just 3 centimeters (just over an inch) in diameter. Despite its size, …

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File photo of Deepak Dhar

How a theoretical physicist’s passionate approach to simple mathematics earned him the Padma Bhushan

New Delhi: As a student, Deepak Dhar enjoyed solving simple math problems he stumbled across in magazines. Years later, he would become one of India’s foremost theoretical physicists, making waves in the field of statistical mechanics. In an interview with ThePrint, Dhar (71) – whose contribution to theoretical physics has won him many laurels, including …

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Dark Energy Big Bang Expansion Concept

Physicists discover a new approach to solving the bizarre mystery of dark energy

Physicists have proposed a new interpretation of dark energy. It might shed some light on the interconnectedness of quantum field theory and general relativity as two perspectives on the universe and its elements. What is behind dark energy and what connects it to the cosmological constant introduced by Albert Einstein? Two physicists from the University …

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Development of the first chip-sized titanium-doped sapphire laser

Development of the first chip-sized titanium-doped sapphire laser

Laser line width measurement. A. Schematics of the optical setup for the Ti:Sa laser photonic integrated circuit. Heterodyne measurement of beat notes using the commercial Ti:Sa laser (M2laser) allows measurement of the laser linewidth using a fast photodetector (PD) and an electrical signal analyzer (ESA). b. Heterodyne beat signal between the on-chip Ti:Sa laser and …

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A model that predicts wrinkle patterns on the surface of toroidal structures as they expand or contract

A model that predicts wrinkle patterns on the surface of toroidal structures as they expand or contract

Surface wrinkling morphologies in various living materials with toroidal geometry. (a) Bidirectional stripes on a garlic. (b) Bistable hexagonal labyrinth patterns on a dehydrated pepper. (c) Transverse and longitudinal wrinkles in an adult male Caenorhabditis elegans. SEM image by Carolyn Marks and David Hall of the Hall Lab of WormAtlas [20]. (d) Wrinkles in crown …

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Meteorites reveal likely origin of Earth's volatile chemicals

Meteorites reveal likely origin of Earth’s volatile chemicals

Many of Earth’s volatiles came from beyond Jupiter. Credit: Shutterstock/NASA The meteorites told Imperial researchers about the likely origin of Earth’s volatile chemicals, some of which form the building blocks of life. They found that about half of Earth’s inventory of the volatile element zinc comes from asteroids originating in the outer solar system — …

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A galaxy with a large reservoir of dark matter (purple overlay) in its center.

The universe is a little hotter than it should be. “Dark photons” could be to blame.

Observations suggest that the intergalactic gas in our universe is slightly hotter than it should be. Recently, a team of astrophysicists used sophisticated computer simulations to propose a radical solution: an exotic form of dark matter known as “dark”. photons“might heat the place up. These strange particles would be the carriers of a new, fifth …

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