Albert Einstein

Albert Einstein News -- ScienceDaily Albert Einstein in the News. Research institutes have been testing Albert Einstein's theory of special relativity and general relativity. Was Albert Einstein right?

  • String theory: Is dark energy even allowed?
    on October 9, 2018 at 2:24 pm

    In string theory, a paradigm shift could be imminent. In June, a team of string theorists published a conjecture which sounded revolutionary: String theory is said to be fundamentally incompatible with our current understanding of 'dark energy'. A new study has now found out that this conjecture seems to be incompatible with the existence of the Higgs particle. […]

  • Searching for errors in the quantum world
    on September 18, 2018 at 3:44 pm

    The theory of quantum mechanics is well supported by experiments. Now, however, a thought experiment by physicists yields unexpected contradictions. These findings raise some fundamental questions -- and they're polarising experts. […]

  • Quantum leap for Einstein's equivalence principle
    on August 21, 2018 at 1:42 pm

    How Einstein's equivalence principle extends to the quantum world has been puzzling physicists for decades, but a research team has now found the key to this question. […]

  • Household phenomenon observed by Leonardo da Vinci finally explained
    on August 7, 2018 at 3:03 pm

    Since the 1820s scientists have believed that hydraulic jumps occur partly as a result of the gravitational pull. But a new article has disproved this longstanding theory. […]

  • Centenary of cosmological constant lambda
    on July 11, 2018 at 2:57 pm

    Physicists are now celebrating the 100th anniversary of the cosmological constant. On this occasion, two recent articles highlight its role in modern physics and cosmology. Before becoming widely accepted, the cosmological constant had to undergo many discussions about its necessity, its value and its physical essence. Today, there are still unresolved problems in understanding the deep physical nature of the phenomena associated with the cosmological constant. […]

  • Einstein proved right in another galaxy
    on June 21, 2018 at 6:10 pm

    Astronomers have made the most precise test of gravity outside our own solar system. By combining data taken with NASA's Hubble Space Telescope and the European Southern Observatory's Very Large Telescope, the researchers show that gravity in this galaxy behaves as predicted by Albert Einstein's general theory of relativity, confirming the theory's validity on galactic scales. […]

  • Atomic clock comparison confirms key assumptions of 'Einstein's elevator'
    on June 4, 2018 at 3:26 pm

    By comparing different types of remote atomic clocks, physicists have performed the most accurate test ever of a key principle underlying Albert Einstein's famous theory of general relativity, which describes how gravity relates to space and time. […]

  • A quantum entanglement between two physically separated ultra-cold atomic clouds
    on May 16, 2018 at 2:23 pm

    Scientists have achieved, in an experiment, quantum entanglement between two ultra-cold atomic ensembles, called Bose-Einstein condensates, spatially separated from each other. […]

  • Taming the multiverse: Stephen Hawking's final theory about the big bang
    on May 2, 2018 at 1:46 pm

    Professor Stephen Hawking's final theory on the origin of the universe has just been published. […]

  • New math bridges holography and twistor theory
    on March 29, 2018 at 6:10 pm

    A new perspective bridges two approaches to understanding quantum gravity. […]

  • Understanding gravity: The nanoscale search for extra dimensions
    on March 26, 2018 at 3:00 pm

    Scientists have used a pulsed slow neutron beamline to probe the deviation of the inverse square law of gravity below the wavelength of 0.1 nm. The experiment achieved the highest sensitivity for a neutron experiment demonstrated to date, and is a significant step toward determining whether the space we live in is really limited to the three dimensions most are familiar with. […]

  • Physicists lay groundwork to better understand the birth of the universe
    on March 6, 2018 at 7:16 pm

    Scientists have developed the first techniques for describing the thermodynamics of very small systems with very high energy -- like the universe at the start of the Big Bang -- which could lead to a better understanding of the birth of the universe and other cosmological phenomena. […]

  • New way to 'see' the quantum world
    on March 5, 2018 at 4:13 pm

    Scientists have invented a new imaging technique that produces rapid, precise measurements of quantum behavior in an atomic clock in the form of near-instant visual art. […]

  • Laser-ranged satellite measurement now accurately reflects Earth's tidal perturbations
    on February 20, 2018 at 5:30 pm

    Tides on Earth have a far-reaching influence, including disturbing satellites' measurements by affecting their motion. The LAser RElativity Satellite (LARES), is the best ever relevant test particle to move in the Earth's gravitational field. In a new study, LARES proves its efficiency for high-precision probing of General Relativity and fundamental physics. […]

  • Leaving Flatland: Quantum Hall effect physics in 4-D
    on January 4, 2018 at 5:41 pm

    Researchers have implemented a dynamical version of the four-dimensional quantum Hall effect with ultracold atoms in an optical superlattice potential. […]

  • Low-altitude skiing can slow down aging -- relativistically
    on December 27, 2017 at 8:04 pm

    A doctor could tell you that skiing and running will most likely slow down aging. But how could mathematicians and physicists give their scientific support to this point of view? […]

  • Doing without dark energy
    on December 14, 2017 at 3:08 pm

    Three mathematicians have a different explanation for the accelerating expansion of the universe that does without theories of 'dark energy.' Einstein's original equations for General Relativity actually predict cosmic acceleration due to an 'instability,' they argue in a new paper. […]

  • Blackbody radiation from a warm object attracts polarizable objects
    on December 8, 2017 at 7:30 pm

    You might think that a hot object pushes atoms and molecules away due to radiation pressure. But a research team showed that for a polarizable atom, the opposite occurs: the hot object attracts it. Using an atom interferometer, they found the attraction was 20 times stronger than the gravitational attraction between a tungsten object and a cesium atom. Though negligible in most situations, next-generation gravitational wave experiments may have to take this into account. […]

  • Possible vestiges of a universe previous to the Big Bang
    on November 27, 2017 at 3:59 pm

    A researcher proposes to eliminate the need for cosmological space-time singularity and argues that the current expansion phase was preceded by contraction. […]

  • Dark matter and dark energy: Do they really exist?
    on November 22, 2017 at 4:30 pm

    Researchers have hypothesized that the universe contains a 'dark matter.' They have also posited the existence of a 'dark energy.' These two hypotheses account for the movement of stars in galaxies and for the accelerating expansion of the universe. But, according to a researcher, these concepts may be no longer valid: the phenomena can be demonstrated without them. This research exploits a new theoretical model based on the scale invariance of the empty space. […]

  • New quantum materials offer novel route to 3-D electronic devices
    on November 7, 2017 at 4:31 pm

    Researchers have shown how the principles of general relativity open the door to novel electronic applications such as a three-dimensional electron lens and electronic invisibility devices. […]

  • Solution to mysterious behavior of supercooled water
    on October 23, 2017 at 1:43 pm

    Researchers have developed a model to explain mysterious breakdown of Stokes-Einstein relationship in supercooled water. They revealed that intermittent hydrogen bond breakage between water molecules led to non-conformity with the Stokes-Einstein relationship. […]

  • Breaking the rules: Heavy chemical elements alter theory of quantum mechanics
    on October 3, 2017 at 3:11 pm

    The theory of quantum mechanics does not adequately explain how the heaviest and rarest elements found at the end of the table function, say scientists. Instead, another well-known scientific theory -- Albert Einstein's famous Theory of Relativity -- helps govern the behavior of the last 21 elements of the Periodic Table. […]

  • Nobel Prize in Physics 2017: Gravitational waves
    on October 3, 2017 at 1:58 pm

    The Nobel Prize in Physics 2017 goes to Rainer Weiss, Barry C. Barish, and Kip S. Thorne "for decisive contributions to the LIGO detector and the observation of gravitational waves." […]

  • The principle Feynman and Einstein could not find was discovered
    on September 26, 2017 at 12:59 pm

    The Faraday’s induction formula (flux rule) of electromagnetism says that the electromotive force (emf) created in a conducting circuit is equal to the rate at which the magnetic flux through the conducting circuit changes as it is written on a high school text in physics. This emf can be calculated in two ways: either by using the Lorentz force formula and calculating the force acting on electrons in the moving conductor of the circuit; or via one of Maxwell’s equations (Faraday’s law) and calculating the change of the magnetic flux penetrating through the circuit. The Lorentz force formula and Maxwell’s equations are two distinct physical laws, yet the two methods yield the same results. […]

  • How Einstein's theory of gravitation experienced a Renaissance after World War II
    on July 12, 2017 at 3:05 pm

    Einstein's 1915 theory of gravitation (General Relativity), is now considered one of the pillars of modern physics. It contributes to our understanding of cosmology and of fundamental interactions between particles. But that was not always the case. In a new article, historians of science and physicists share their views on the process, especially the 'Renaissance' of General Relativity, following progressive transformation of the theory into a bona fide physics theory. […]

  • Mind the liquid gap: Liquids are capable of supporting waves with short wavelengths only
    on June 9, 2017 at 2:22 pm

    Flowing particles in liquids act as a filter to suppress long-wavelength waves but allow short-wavelength ones to be supported, according to physicists. […]

  • New confirmation of Einstein's General Theory of Relativity
    on June 7, 2017 at 4:38 pm

    Albert Einstein predicted that whenever light from a distant star passes by a closer object, gravity acts as a kind of magnifying lens, brightening and bending distant starlight. Yet, Einstein added, 'There is no hope of observing this phenomenon directly.' Now, researchers have done just that, saying that the discovery opens a new window to understanding 'the history and evolution of galaxies such as our own.' […]

  • Physicist builds on Einstein and Galileo's work
    on June 2, 2017 at 3:28 pm

    Sixteenth century scientist Galileo Galilei threw two spheres of different mass from the top of the Leaning Tower of Pisa to establish a scientific principle. Now nearly four centuries later, a team of physicists has applied the same principle to quantum objects. […]

  • New gravitational wave characteristics uncovered, researchers report
    on May 23, 2017 at 12:33 pm

    Researchers have identified a new concept -- 'orphan memory' -- which changes the current thinking around gravitational waves. […]