Articles about relativity

Earth

Earth's core is younger than its crust surface

Back in the early 1960s, physicist Richard Feynman remarked that the centre of the Earth had to be a little younger than the surface, since it would experience gravitational time dilation. Now, boffins from two Danish universities have put a value to that difference, and while they agree with his hypothesis, they've corrected …
Einstein

Einstein's brain to be picked by satellites

The European Space Agency is to make the most of two satellite misfires by using them to test Einstein's theory of relativity. Last August, the fifth and sixth Galileo satellites were launched as part of a plan to create a Euro-run GPS system, but the launch didn't go according to plan. A failure in the fourth stage of the …
Iain Thomson, 10 Nov 2015

CERN team uses GPUs to discover if antimatter falls up, not down

GTC In the next year or two, researchers at CERN's Large Hadron Collider (LHC) should be able to answer one of the most fundamental questions bedeviling physicists: what is the effect of gravity on antimatter? As we all learned back in high school, matter falls to Earth at an acceleration of 9.8 meters per second squared, and …
Rik Myslewski, 31 Mar 2014
A pulsar with glowing cones of radiation

Two white dwarfs and superdense star. Yup, IDEAL for gravity lab in the sky - boffins

Boffins have discovered a unique triple star system that could help them to probe one of the most fundamental physics problems of all: the true nature of gravity itself. Millisecond pulsar, left foreground, is orbited by a hot white dwarf star, centre, both of which are orbited by another, more-distant and cooler white dwarf, …
A 120-minute clockwork timer

Be still, my quivering atoms: Here's a new way to count a second

Atoms trapped by light and measured with a CCD camera have the potential to outdo today's most accurate atomic clocks, and although it's early days, a pair of linked optical lattice clocks have yielded accuracy of a second every 300 million years. In doing so, the group that performed the test, outlined here in Nature and …

CURSE you, EINSTEIN! Humanity still chained in relativistic PRISON

Disappointing news on the science wires today, as new research indicates that a possible means of subverting the laws of physics to allow interstellar travel apparently doesn't work. Curses! Can nothing pierce this damned rubber sheet? As we are told in a new paper just published in hefty boffinry mag Science: Neutron …
Lewis Page, 26 Apr 2013

Chip daddy Mead: 'A bunch of big egos' are strangling science

ISSCC Microelectronics pioneer, Caltech professor emeritus, and all-around smart guy Carver Mead believes that the scientific revolution that began with the discovery of special relativity and quantum mechanics has stalled, and that it's up to us to kickstart it. "A bunch of big egos got in the way," he told his audience of 3,000- …
Rik Myslewski, 20 Feb 2013
The Register breaking news

Stars spotted dancing superfast tango around black hole handbag

Astroboffins have found a star whipping around our galaxy's central supermassive black hole so fast that it completes a circuit in just 11.5 years, which could help test Albert Einstein's theory of relativity. Keck Telescopes on Mauna Kea, Hawaii, observing the galactic centre The orbit is the shortest known orbit of any …
The Register breaking news

Hubble snaps dark matter warping spacetime

The Hubble Space Telescope has taken a 19-hour snapshot of galaxies whose images have been warped by the presence of the baffling interstellar substance known as "dark matter", residing in an intervening galactic cluster. The image, released Thursday, shows the cluster – known prosaically as MACS J1206.2-0847, or simply MACS …
Rik Myslewski, 14 Oct 2011
The Register breaking news

Faster-than-light back with surprising CERN discovery

Only weeks since mathematicians proved it couldn’t be done, CERN boffins have put the smile back on sci-fi fans’ faces everywhere by discovering neutrinos travelling faster than light. The astonishing results, reported by Reuters and others, came as the result of the OPERA experiment in which 15,000 beams of neutrinos were …
homeless man with sign

Micro Focus snags Relativity for $9.7m

Consolidation in the legacy application rehosting and modernization software space continues apace, with compiler and rehosting expert Micro Focus announcing yet another acquisition. This time, it's shelling out $9.7m in cash to pick up Relativity Technologies, one of its competitors in the IBM mainframe and midrange server …

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