Elu, loodus, teadus ja tehnoloogia
Author(s): Nicolas Tancogne-Dejean, Oliver D. Mücke, Franz X. Kärtner, and Angel Rubio
Advanced first-principles calculations reveal that the generation of high harmonic spectra is enhanced by the inhomogeneity of the electron-nuclei potential, which is obtained from the band structure.
[Phys. Rev. Lett. 118, 087403] Published Fri Feb 24, 2017
Author(s): Andre G. Campos, Denys I. Bondar, Renan Cabrera, and Herschel A. RabitzCalculations show that a carefully engineered laser pulse can induce an atom to emit light as if it were a different atom.[Phys. Rev. Lett. 118, 083201] Published Fri Feb…
Author(s): P. A. Baikov, K. G. Chetyrkin, and J. H. Kühn
For the first time, theorists calculate the complete five-loop term in the beta function for quark-gluon coupling in quantum chromodynamics.
[Phys. Rev. Lett. 118, 082002] Published Fri Feb 24, 2017
Author(s): Nicolas Tancogne-Dejean, Oliver D. Mücke, Franz X. Kärtner, and Angel Rubio
Advanced first-principles calculations reveal that the generation of high harmonic spectra is enhanced by the inhomogeneity of the electron-nuclei potential, which is obtained from the band structure.
[Phys. Rev. Lett. 118, 087403] Published Fri Feb 24, 2017
Author(s): Andre G. Campos, Denys I. Bondar, Renan Cabrera, and Herschel A. RabitzCalculations show that a carefully engineered laser pulse can induce an atom to emit light as if it were a different atom.[Phys. Rev. Lett. 118, 083201] Published Fri Feb…
Author(s): P. A. Baikov, K. G. Chetyrkin, and J. H. Kühn
For the first time, theorists calculate the complete five-loop term in the beta function for quark-gluon coupling in quantum chromodynamics.
[Phys. Rev. Lett. 118, 082002] Published Fri Feb 24, 2017
Astronomers commemorate one of the brightest supernovae in 400 years with new images and models of this stellar remnant.
Earth observation image of the week: a Sentinel-1 radar image of water reservoirs in California, also featured on the Earth from Space video programme
Europe’s Vega small launcher is set to demonstrate its extended capability to deploy multiple light satellites using its new versatile Small Satellites Mission Service (SSMS) dispenser, in the second half of 2018.
Europe’s Vega small launcher is set to demonstrate its extended capability to deploy multiple light satellites using its new versatile Small Satellites Mission Service (SSMS) dispenser, in the second half of 2018.
Imaging technology developed at JPL is now used in dental X-rays.
Imaging technology developed at JPL is now used in dental X-rays.
Author(s): Sander Wildeman, Sebastian Sterl, Chao Sun, and Detlef Lohse
High-speed video and modeling reveal the conditions under which water drops explode when they’re frozen from the outside in.
[Phys. Rev. Lett. 118, 084101] Published Thu Feb 23, 2017
Author(s): Sander Wildeman, Sebastian Sterl, Chao Sun, and Detlef Lohse
High-speed video and modeling reveal the conditions under which water drops explode when they’re frozen from the outside in.
[Phys. Rev. Lett. 118, 084101] Published Thu Feb 23, 2017
A novel airborne experiment over the flat agricultural landscape of the Netherlands recently simulated, for the first time, images that could be taken by radar satellites orbiting in tandem.
A novel airborne experiment over the flat agricultural landscape of the Netherlands recently simulated, for the first time, images that could be taken by radar satellites orbiting in tandem.
Even without an obvious power source, this huge nebula is helping astronomers trace the invisible matter that spans our universe.
MinutePhysics gives you the best short, hands-on guide to last year’s biggest discovery.
Join us Friday, 24 February, at 10:00 CET for the ‘Earth from Space’ video programme. This week features a radar image of water reservoirs in California
NASA’s Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star.
NASA’s Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star.
Author(s): E. Razzoli, T. Jaouen, M.-L. Mottas, B. Hildebrand, G. Monney, A. Pisoni, S. Muff, M. Fanciulli, N. C. Plumb, V. A. Rogalev, V. N. Strocov, J. Mesot, M. Shi, J. H. Dil, H. Beck, and P. Aebi
Photoemission spectroscopy has detected two different populations of spin-polarized electrons that are “hidden” within a layered, graphene-like material.
[Phys. Rev. Lett. 118, 086402] Published Wed Feb 22, 2017
Author(s): E. Razzoli, T. Jaouen, M.-L. Mottas, B. Hildebrand, G. Monney, A. Pisoni, S. Muff, M. Fanciulli, N. C. Plumb, V. A. Rogalev, V. N. Strocov, J. Mesot, M. Shi, J. H. Dil, H. Beck, and P. Aebi
Photoemission spectroscopy has detected two different populations of spin-polarized electrons that are “hidden” within a layered, graphene-like material.
[Phys. Rev. Lett. 118, 086402] Published Wed Feb 22, 2017
Now it’s time for some preliminary design work
… and they might all be habitable.
Technology image of the week: Europe’s latest weather satellite lowered into a giant vacuum chamber for space testing
Atomic force microscopy (AFM) is a powerful tool used in the investigation of the structural and
mechanical properties of a wide range of materials including biomaterials. It provides the ability
to acquire high resolution images of biomaterials at t…
Atomic force microscopy (AFM) is a powerful tool used in the investigation of the structural and
mechanical properties of a wide range of materials including biomaterials. It provides the ability
to acquire high resolution images of biomaterials at t…
A mission to examine the habitability of Jupiter’s ocean-bearing moon Europa is taking one step closer to the launchpad, with the recent completion of a major NASA review.
A mission to examine the habitability of Jupiter’s ocean-bearing moon Europa is taking one step closer to the launchpad, with the recent completion of a major NASA review.
While rain and snow in atmospheric river storms can be drought busters, they bring a well-known flood risk. A new NASA study shows they also bring high wind damage worldwide.
While rain and snow in atmospheric river storms can be drought busters, they bring a well-known flood risk. A new NASA study shows they also bring high wind damage worldwide.
Sümpoosium Piret Kuuse 70. sünnipäeva tähistamiseks toimub 27. veebruaril algusega kell 16.15, Jakobi 2-336. Korraldavad TÜ filosoofia ja semiootika instituut koos füüsika instituudi, teadusajaloo ja teadusfilosoofia Eesti ühenduse (TTEÜ) ja analüütilise filosoofia seminariga (AFS). Kava on ülimalt põnev: Avasõnad Margit Sutrop, TÜ filosoofia ja semiootika instituut “Science denial – kas uue ajastu algus?” Piret Kuusk, […]
Author(s): Yoav Lahini, Omer Gottesman, Ariel Amir, and Shmuel M. Rubinstein
Crumpled sheets “remember” the application and removal of a force for days, a newly discovered memory effect that suggests crumpled sheets are a lot like glasses.
[Phys. Rev. Lett. 118, 085501] Published Tue Feb 21, 2017
Author(s): F. Scazza, G. Valtolina, P. Massignan, A. Recati, A. Amico, A. Burchianti, C. Fort, M. Inguscio, M. Zaccanti, and G. RoatiRadio frequency spectroscopy measurements are used to determine the effective mass, energy, and decay rate of repulsive…
Author(s): R. Aaij et al. (LHCb Collaboration)The LHCb Collaboration reports the rarest (8 in 100 million events) fully hadronic B0 meson decay ever observed.[Phys. Rev. Lett. 118, 081801] Published Tue Feb 21, 2017
Author(s): Yoav Lahini, Omer Gottesman, Ariel Amir, and Shmuel M. Rubinstein
Crumpled sheets “remember” the application and removal of a force for days, a newly discovered memory effect that suggests crumpled sheets are a lot like glasses.
[Phys. Rev. Lett. 118, 085501] Published Tue Feb 21, 2017
Author(s): F. Scazza, G. Valtolina, P. Massignan, A. Recati, A. Amico, A. Burchianti, C. Fort, M. Inguscio, M. Zaccanti, and G. RoatiRadio frequency spectroscopy measurements are used to determine the effective mass, energy, and decay rate of repulsive…
Author(s): R. Aaij et al. (LHCb Collaboration)The LHCb Collaboration reports the rarest (8 in 100 million events) fully hadronic B0 meson decay ever observed.[Phys. Rev. Lett. 118, 081801] Published Tue Feb 21, 2017
Jacqueline McGlade from the UN Environment Programme and Josef Aschbacher from ESA join the Earth from Space video programme to discuss satellite observations for UNEP’s Global Environment Outlook
Human spaceflight image of the week: The Orion spacecraft propulsion system ready for testing
Alan Stern, principal investigator of the New Horizons mission, is ready to make Pluto a planet again … along with Ganymede and hundreds of other objects.
Your guide to realizing solar system scale.
Just how brightly can a neutron star shine?
ESA’s XMM-Newton has found a pulsar – the spinning remains of a once-massive star – that is a thousand times brighter than previously thought possible.
ESA’s XMM-Newton has found a pulsar – the spinning remains of a once-massive star – that is a thousand times brighter than previously thought possible.
The integration of the differential equations of motion of the symmetric top, described by the Euler
angles as coordinates, is revisited using Jacobi’s elliptic functions for the nutation angle and
Jacobi’s theta functions for the rotation ψ and…
In this work we present a virtual simulator developed using the MATLAB GUIDE environment based on
the numerical resolution of the nonlinear Schrödinger equation (NLS) and using the split step method
for the study of the spatial–temporal propagat…
The apparent length of a relativistically moving rod and visualization of the Einstein time dilation
are studied. The description of events in space-time is given geometrically as viewed from two
different inertial frames that are in relative motion …
The integration of the differential equations of motion of the symmetric top, described by the Euler
angles as coordinates, is revisited using Jacobi’s elliptic functions for the nutation angle and
Jacobi’s theta functions for the rotation ψ and…
In this work we present a virtual simulator developed using the MATLAB GUIDE environment based on
the numerical resolution of the nonlinear Schrödinger equation (NLS) and using the split step method
for the study of the spatial–temporal propagat…
The apparent length of a relativistically moving rod and visualization of the Einstein time dilation
are studied. The description of events in space-time is given geometrically as viewed from two
different inertial frames that are in relative motion …
NASA will hold a news conference at 10 a.m. PST (1 p.m. EST) Wednesday, Feb. 22, to present new findings on planets that orbit stars other than our sun, known as exoplanets.
NASA will hold a news conference at 10 a.m. PST (1 p.m. EST) Wednesday, Feb. 22, to present new findings on planets that orbit stars other than our sun, known as exoplanets.
Space Science Image of the Week: Herschel reveals stars growing along the filaments of a giant cloud of gas and dust
NASA’s Juno mission to Jupiter, which has been in orbit around the gas giant since July 4, 2016, will remain in its current 53-day orbit for the remainder of the mission.
NASA’s Juno mission to Jupiter, which has been in orbit around the gas giant since July 4, 2016, will remain in its current 53-day orbit for the remainder of the mission.
Tomorrow, a Space-X Dragon cargo ferry will be launched to the International Space Station packed with supplies, experiments, tools and food for the six astronauts living and working high above Earth. In the unpressurised cargo hold is a n…
Tomorrow, a Space-X Dragon cargo ferry will be launched to the International Space Station packed with supplies, experiments, tools and food for the six astronauts living and working high above Earth. In the unpressurised cargo hold is a n…
Author(s): S. Mironov and A. BuzdinSpin-orbit-model calculations predict a spontaneous supercurrent at the interface between an s-wave superconductor and a ferromagnet.[Phys. Rev. Lett. 118, 077001] Published Fri Feb 17, 2017
Author(s): John N. Moore, Junichiro Hayakawa, Takaaki Mano, Takeshi Noda, and Go YusaPhotoluminescence and magnetic resonance imaging reveal deformable regions in fractional quantum Hall liquids that produce nuclear spins from spin-polarized electrons….
Author(s): L. Keiser, H. Bense, P. Colinet, J. Bico, and E. ReyssatA drop of water-alcohol mixture on a layer of oil was caught on video bursting into thousands of tiny droplets.[Phys. Rev. Lett. 118, 074504] Published Fri Feb 17, 2017
Author(s): S. Mironov and A. BuzdinSpin-orbit-model calculations predict a spontaneous supercurrent at the interface between an s-wave superconductor and a ferromagnet.[Phys. Rev. Lett. 118, 077001] Published Fri Feb 17, 2017
Author(s): John N. Moore, Junichiro Hayakawa, Takaaki Mano, Takeshi Noda, and Go YusaPhotoluminescence and magnetic resonance imaging reveal deformable regions in fractional quantum Hall liquids that produce nuclear spins from spin-polarized electrons….
Author(s): L. Keiser, H. Bense, P. Colinet, J. Bico, and E. ReyssatA drop of water-alcohol mixture on a layer of oil was caught on video bursting into thousands of tiny droplets.[Phys. Rev. Lett. 118, 074504] Published Fri Feb 17, 2017
Our week through the lens: 13-17 February 2017
The craft was originally supposed to insert into a perilous path skimming near the planet in a polar orbit.
We’ve seen indirect evidence for decades. Now it’s time for the Event Horizon Telescope to stare one in the eyes.
NASA’s Dawn mission has found evidence for organic material on Ceres, a dwarf planet and the largest body in the main asteroid belt between Mars and Jupiter.
Researchers have completed the first flights of a NASA-led field campaign that is targeting one of the biggest gaps in scientists’ understanding of Earth’s water resources: snow.
The number of instruments on the International Space Station dedicated to observing Earth to increase our understanding of our home planet continues to grow.
How a puzzling sensor reading transformed NASA’s Cassini Saturn mission and created a new target in the search for habitable worlds beyond Earth.
NASA’s Dawn mission has found evidence for organic material on Ceres, a dwarf planet and the largest body in the main asteroid belt between Mars and Jupiter.
How a puzzling sensor reading transformed NASA’s Cassini Saturn mission and created a new target in the search for habitable worlds beyond Earth.
The number of instruments on the International Space Station dedicated to observing Earth to increase our understanding of our home planet continues to grow.
Researchers have completed the first flights of a NASA-led field campaign that is targeting one of the biggest gaps in scientists’ understanding of Earth’s water resources: snow.
Art and space enter a new dimension, with Italian artist Michelangelo Pistoletto and ESA astronaut Paolo Nespoli
Art and space enter a new dimension, with Italian artist Michelangelo Pistoletto and ESA astronaut Paolo Nespoli
ESA’s involvement in the world of art is entering a new dimension, thanks to the cooperation with the Italian artist Michelangelo Pistoletto, with the idea of making space activities as inclusive as possible for more of the public on Earth.
Following the appearance of a large crack in the ice shelf close to the Halley VI research station in Antarctica, information from the Copernicus Sentinel-1 and Sentinel-2 satellites helped to decide to close the base temporarily.
Following the appearance of a large crack in the ice shelf close to the Halley VI research station in Antarctica, information from the Copernicus Sentinel-1 and Sentinel-2 satellites helped to decide to close the base temporarily.
ESA’s involvement in the world of art is entering a new dimension, thanks to the cooperation with the Italian artist Michelangelo Pistoletto, with the idea of making space activities as inclusive as possible for more of the public on Earth.
Following the appearance of a large crack in the ice shelf close to the Halley VI research station in Antarctica, information from the Copernicus Sentinel-1 and Sentinel-2 satellites helped to decide to close the base temporarily.
Join us Friday, 17 February, at 10:00 CET for the ‘Earth from Space’ video programme. The Ötztal Alps in the western Austrian state of Tyrol are featured in this week’s edition
They hope to persuade NASA for a chance to land on the gas giant’s Moon
Backyard World: Planet Nine can help you find a missing piece of our solar system from the comforts of your couch.
The same pressure that could propel us to the stars may explain quirks in the Sun’s behavior.
Going to space is never routine, and Sentinel-2 mission controllers are leaving nothing to chance as they prepare for the critical days following next month’s liftoff.
Going to space is never routine, and Sentinel-2 mission controllers are leaving nothing to chance as they prepare for the critical days following next month’s liftoff.
As liftoff day draws closer, the Sentinel-2B ‘to do’ list is shrinking as tasks are ticked off, including the tricky process of fuelling the satellite. And, even despite having to do a few unexpected jobs, everything is on track for launch…
As liftoff day draws closer, the Sentinel-2B ‘to do’ list is shrinking as tasks are ticked off, including the tricky process of fuelling the satellite. And, even despite having to do a few unexpected jobs, everything is on track for launch…
To illustrate a simple mean-field-like approach for examining quantum phase transitions we consider
the ##IMG## [http://ej.iop.org/images/0143-0807/38/3/033002/ejpaa5c71ieqn1.gif]
{$J\mbox{–}{J}^{\prime }$} quantum Heisenberg antiferromagnet on a sq…
To illustrate a simple mean-field-like approach for examining quantum phase transitions we consider
the ##IMG## [http://ej.iop.org/images/0143-0807/38/3/033002/ejpaa5c71ieqn1.gif]
{$J\mbox{–}{J}^{\prime }$} quantum Heisenberg antiferromagnet on a sq…
NASA is inviting the public to help search for possible undiscovered worlds in the outer reaches of our solar system and in neighboring interstellar space.
NASA is inviting the public to help search for possible undiscovered worlds in the outer reaches of our solar system and in neighboring interstellar space.
Author(s): Guillermo Ballesteros, Javier Redondo, Andreas Ringwald, and Carlos TamaritA minimal extension to the standard model of particle physics involves six new particles.[Phys. Rev. Lett. 118, 071802] Published Wed Feb 15, 2017
Author(s): Guillermo Ballesteros, Javier Redondo, Andreas Ringwald, and Carlos TamaritA minimal extension to the standard model of particle physics involves six new particles.[Phys. Rev. Lett. 118, 071802] Published Wed Feb 15, 2017
Oh, the places the rover will go
This newly-discovered variable is one of only seven of its kind known in our galaxy.
