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Investigating wireless power transfer

8.08.2017 by Kaido Reivelt

Understanding Physics is a great end in itself, but is also crucial to keep pace with developments
in modern technology. Wireless power transfer, known to many only as a means to charge electric
toothbrushes, will soon be commonplace in charging phon…

Filed Under: RSS Füüsikaharidus

Revisiting the ‘unmixing experiment’ through argumentation

8.08.2017 by Kaido Reivelt

This paper focuses on a series of activities for students at middle school to college level,
designed to instill a sound understanding of fluids and the properties of fluids. The first
activities investigate diffusion and molecular size and these are…

Filed Under: RSS Füüsikaharidus

How to make a soft, rough surface transparent

8.08.2017 by Kaido Reivelt

A transparent elastomer is made opaque by making one of its surfaces rough. By squeezing the rough
surface against a piece of glass, the roughness is smoothed out and the elastomer becomes
transparent.

Filed Under: RSS Füüsikaharidus

Measurement of the sound absorption coefficient for an advanced undergraduate physics laboratory

8.08.2017 by Kaido Reivelt

We present a simple experiment that allows advanced undergraduates to learn the basics of the
acoustic properties of materials. The impedance tube-standing wave method is applied to study the
normal absorption coefficient of acoustics insulators. The…

Filed Under: RSS Füüsikaharidus

Analyzing collisions in classical mechanics using mass–momentum diagrams

8.08.2017 by Kaido Reivelt

We show the value of mass–momentum diagrams for analyzing collision problems in classical mechanics
in one dimension. Collisions are characterized by the coefficient of restitution and the momenta of
the interacting particles both before and after …

Filed Under: RSS Füüsikaharidus

Equilibrium charge distribution on a finite straight one-dimensional wire

8.08.2017 by Kaido Reivelt

The electrostatic properties of uniformly charged regular bodies are prominently discussed on
college-level electromagnetism courses. However, one of the most basic problems of electrostatics
that deals with how a continuous charge distribution reach…

Filed Under: RSS Füüsikaharidus

Geometric mechanics of ray optics as particle dynamics: refraction index with cylindrical symmetry

8.08.2017 by Kaido Reivelt

Starting from the Fermat principle of geometrical optics, we analyse the ray dynamics in a graded
refractive index system device with cylindrical symmetry and a refractive index that decreases
parabolically with the radial coordinate. By applying Ham…

Filed Under: RSS Füüsikaharidus

Electro-optic control of photographic imaging quality through ‘Smart Glass’ windows in optics demonstrations

8.08.2017 by Kaido Reivelt

An experimental setup allowing the modeling of conditions in optical devices and in the eye at
various degrees of scattering such as cataract pathology in human eyes is presented. The scattering
in cells of polymer-dispersed liquid crystals (PDLCs) a…

Filed Under: RSS Füüsikaharidus

Geometric mechanics of ray optics as particle dynamics: refraction index with cylindrical symmetry

8.08.2017 by Kaido Reivelt

Starting from the Fermat principle of geometrical optics, we analyse the ray dynamics in a graded
refractive index system device with cylindrical symmetry and a refractive index that decreases
parabolically with the radial coordinate. By applying Ham…

Filed Under: RSS Füüsikaharidus

Equilibrium charge distribution on a finite straight one-dimensional wire

8.08.2017 by Kaido Reivelt

The electrostatic properties of uniformly charged regular bodies are prominently discussed on
college-level electromagnetism courses. However, one of the most basic problems of electrostatics
that deals with how a continuous charge distribution reach…

Filed Under: RSS Füüsikaharidus

Analyzing collisions in classical mechanics using mass–momentum diagrams

8.08.2017 by Kaido Reivelt

We show the value of mass–momentum diagrams for analyzing collision problems in classical mechanics
in one dimension. Collisions are characterized by the coefficient of restitution and the momenta of
the interacting particles both before and after …

Filed Under: RSS Füüsikaharidus

Measurement of the sound absorption coefficient for an advanced undergraduate physics laboratory

8.08.2017 by Kaido Reivelt

We present a simple experiment that allows advanced undergraduates to learn the basics of the
acoustic properties of materials. The impedance tube-standing wave method is applied to study the
normal absorption coefficient of acoustics insulators. The…

Filed Under: RSS Füüsikaharidus

Electro-optic control of photographic imaging quality through ‘Smart Glass’ windows in optics demonstrations

8.08.2017 by Kaido Reivelt

An experimental setup allowing the modeling of conditions in optical devices and in the eye at
various degrees of scattering such as cataract pathology in human eyes is presented. The scattering
in cells of polymer-dispersed liquid crystals (PDLCs) a…

Filed Under: RSS Füüsikaharidus

Can Poor Air Quality Mask Global Warming’s Effects?

7.08.2017 by Kaido Reivelt

In the 1900s, the U.S. warmed everywhere except the Southeast, where warming didn’t begin till the 1990s. A study finds air quality improvements may have played a role.

Filed Under: RSS Kosmos

Can Poor Air Quality Mask Global Warming’s Effects?

7.08.2017 by Kaido Reivelt

In the 1900s, the U.S. warmed everywhere except the Southeast, where warming didn’t begin till the 1990s. A study finds air quality improvements may have played a role.

Filed Under: RSS Kosmos

Primordial Black Holes and $r$-Process Nucleosynthesis

7.08.2017 by Kaido Reivelt

Author(s): George M. Fuller, Alexander Kusenko, and Volodymyr Takhistov

A dramatic scenario in which a compact black hole eats a spinning neutron star from inside might explain a nearby galaxy’s unexpectedly high abundance of heavy elements.


[Phys. Rev. Lett. 119, 061101] Published Mon Aug 07, 2017

Filed Under: RSS Teadus

Conductance of a Freestanding Conjugated Molecular Wire

7.08.2017 by Kaido Reivelt

Author(s): Torben Jasper-Tönnies, Aran Garcia-Lekue, Thomas Frederiksen, Sandra Ulrich, Rainer Herges, and Richard Berndt

The conductance of a molecule standing perpendicular to a substrate is found to be dependent on the geometry, orbital symmetries, and bonds of the molecule.


[Phys. Rev. Lett. 119, 066801] Published Mon Aug 07, 2017

Filed Under: RSS Teadus

Astronomers just mapped the inside of a supernova

7.08.2017 by Kaido Reivelt

It turns out these events could be even more impressive than we thought.

Filed Under: RSS Kosmos

Box of life

7.08.2017 by Kaido Reivelt

Technology image of the week: This pioneering microbiology life-support experiment flew in space 30 years ago this week

Filed Under: RSS Kosmos

Summer fireworks

7.08.2017 by Kaido Reivelt

Space Science Image of the Week: Rosetta captured views of the comet during its most active phase two years ago

Filed Under: RSS Kosmos

New Clues to Universe’s Structure Revealed

4.08.2017 by Kaido Reivelt

Three JPL scientists are part of the Dark Energy Survey, which is helping to further our understanding of the structure of the universe.

Filed Under: RSS Kosmos

New Clues to Universe’s Structure Revealed

4.08.2017 by Kaido Reivelt

Three JPL scientists are part of the Dark Energy Survey, which is helping to further our understanding of the structure of the universe.

Filed Under: RSS Kosmos

Nonlinear Self-Action of Light through Biological Suspensions

4.08.2017 by Kaido Reivelt

Author(s): Anna Bezryadina, Tobias Hansson, Rekha Gautam, Benjamin Wetzel, Graham Siggins, Andrew Kalmbach, Josh Lamstein, Daniel Gallardo, Edward J. Carpenter, Andrew Ichimura, Roberto Morandotti, and Zhigang ChenA laser beam sent through a suspension…

Filed Under: RSS Teadus

Oscillation of Branching Ratios Between the $\mathrm{D}(2s)+\mathrm{D}(1s)$ and the $\mathrm{D}(2p)+\mathrm{D}(1s)$ Channels in Direct Photodissociation of ${\mathrm{D}}_{2}$

4.08.2017 by Kaido Reivelt

Author(s): Jie Wang, Qingnan Meng, and Yuxiang MoPreviously predicted oscillations in the electronic states of atoms after the dissociation of a hydrogen molecule are observed experimentally.[Phys. Rev. Lett. 119, 053002] Published Fri Aug 04, 2017

Filed Under: RSS Teadus

Search for the Dimuon Decay of the Higgs Boson in $pp$ Collisions at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$ with the ATLAS Detector

4.08.2017 by Kaido Reivelt

Author(s): M. Aaboud et al. (ATLAS Collaboration)The ATLAS collaboration has placed an upper limit on the decay rate of Higgs bosons into pairs of muons within a factor of three of the Standard Model prediction.[Phys. Rev. Lett. 119, 051802] Published …

Filed Under: RSS Teadus

Week in Images

4.08.2017 by Kaido Reivelt

Our week through the lens: 31 July – 4 August 2017

Filed Under: RSS Kosmos

New Horizons may visit twice the object for the same price

4.08.2017 by Kaido Reivelt

MU69 could be hiding a strange secret: it’s one object, not two.

Filed Under: RSS Kosmos

Total Eclipse of 2016 HO3?

4.08.2017 by Kaido Reivelt

Learn whether Earth’s second moon can cause solar eclipses.

Filed Under: RSS Kosmos

Pressure-Dependent Friction on Granular Slopes Close to Avalanche

3.08.2017 by Kaido Reivelt

Author(s): Jérôme Crassous, Antoine Humeau, Samuel Boury, and Jérôme Casas

Experiments show that the mass of an object determines whether it slides down a sandy slope, which may explain why ants get trapped in antlions’ traps.


[Phys. Rev. Lett. 119, 058003] Published Thu Aug 03, 2017

Filed Under: RSS Teadus

Paolo and Mares

3.08.2017 by Kaido Reivelt

Human spaceflight image of the week: ESA astronaut Paolo Nespoli tests his muscles

Filed Under: RSS Kosmos

Two Voyagers Taught Us How to Listen to Space

2.08.2017 by Kaido Reivelt

Over the mission’s 40 years, NASA’s Voyager spacecraft have paved the way for modern deep space communications.

Filed Under: RSS Kosmos

NASA Selects Proposals to Study Sun, Space Environment

2.08.2017 by Kaido Reivelt

NASA has selected nine proposals under its Explorers Program, including one managed by JPL.

Filed Under: RSS Kosmos

Five Years Ago and 154 Million Miles Away: Touchdown!

2.08.2017 by Kaido Reivelt

NASA’s Curiosity Mars rover, which landed near Mount Sharp five years ago this week, is examining clues on that mountain about long-ago lakes on Mars.

Filed Under: RSS Kosmos

Hubble Detects Exoplanet with Glowing Water Atmosphere

2.08.2017 by Kaido Reivelt

Scientists have discovered the strongest evidence to date for a stratosphere on a planet outside our solar system.

Filed Under: RSS Kosmos

NASA Selects Proposals to Study Sun, Space Environment

2.08.2017 by Kaido Reivelt

NASA has selected nine proposals under its Explorers Program, including one managed by JPL.

Filed Under: RSS Kosmos

Five Years Ago and 154 Million Miles Away: Touchdown!

2.08.2017 by Kaido Reivelt

NASA’s Curiosity Mars rover, which landed near Mount Sharp five years ago this week, is examining clues on that mountain about long-ago lakes on Mars.

Filed Under: RSS Kosmos

Hubble Detects Exoplanet with Glowing Water Atmosphere

2.08.2017 by Kaido Reivelt

Scientists have discovered the strongest evidence to date for a stratosphere on a planet outside our solar system.

Filed Under: RSS Kosmos

Two Voyagers Taught Us How to Listen to Space

2.08.2017 by Kaido Reivelt

Over the mission’s 40 years, NASA’s Voyager spacecraft have paved the way for modern deep space communications.

Filed Under: RSS Kosmos

Optical Control of the Resonant Dipole-Dipole Interaction between Rydberg Atoms

2.08.2017 by Kaido Reivelt

Author(s): Sylvain de Léséleuc, Daniel Barredo, Vincent Lienhard, Antoine Browaeys, and Thierry Lahaye

The interaction between two Rydberg atoms is modified experimentally by addressing one of the two atoms with a laser beam.


[Phys. Rev. Lett. 119, 053202] Published Wed Aug 02, 2017

Filed Under: RSS Teadus

Frictional Magneto-Coulomb Drag in Graphene Double-Layer Heterostructures

2.08.2017 by Kaido Reivelt

Author(s): Xiaomeng Liu, Lei Wang, Kin Chung Fong, Yuanda Gao, Patrick Maher, Kenji Watanabe, Takashi Taniguchi, James Hone, Cory Dean, and Philip KimThe first experimental study of frictional drag effect between two monolayer sheets of graphene separa…

Filed Under: RSS Teadus

Astronomy magazine’s interactive eclipse 2017 widget

2.08.2017 by Kaido Reivelt

This tool has the answers to your eclipse day questions.

Filed Under: RSS Kosmos

Breakthrough Starshot takes its first step toward interstellar travel

2.08.2017 by Kaido Reivelt

First … low Earth orbit. But eventually, these chip-sized spacecraft could explore Proxima Centauri.

Filed Under: RSS Kosmos

Nanobot’s giant leap

2.08.2017 by Kaido Reivelt

Technology image of the week: This highly mobile jumping Nanobot is designed to make a profit on the Moon

Filed Under: RSS Kosmos

Nanobot’s giant leap

2.08.2017 by Kaido Reivelt

Technology image of the week: This highly mobile jumping Nanobot is designed to make a profit on the Moon

Filed Under: RSS Kosmos

Vega lofts two satellites on second launch this year

2.08.2017 by Kaido Reivelt

This morning Arianespace launched a Vega rocket carrying two Earth observation satellites for Italy, France and Israel encased in Vega’s lighter protective fairing.

Filed Under: RSS Kosmos

Vega lofts two satellites on second launch this year

2.08.2017 by Kaido Reivelt

This morning Arianespace launched a Vega rocket carrying two Earth observation satellites for Italy, France and Israel encased in Vega’s lighter protective fairing.

Filed Under: RSS Kosmos

The illusive sound of a Bundengan string

2.08.2017 by Kaido Reivelt

The acoustics of a vibrating string is frequently used as a simple example of how physics can be
applied in the field of art. In this paper we describe a simple experiment and analysis using a
clipped string. This experiment can generate scientific c…

Filed Under: RSS Füüsikaharidus

Just how much do the planets affect the tides?

2.08.2017 by Kaido Reivelt

The influence of the planets, and planetary alignment on the Earth’s tides is addressed. Starting
from Newton’s law of gravitation, the tidal influence of any celestial body is expressed in terms of
its apparent size and its density. From this, p…

Filed Under: RSS Füüsikaharidus

The illusive sound of a Bundengan string

2.08.2017 by Kaido Reivelt

The acoustics of a vibrating string is frequently used as a simple example of how physics can be
applied in the field of art. In this paper we describe a simple experiment and analysis using a
clipped string. This experiment can generate scientific c…

Filed Under: RSS Füüsikaharidus

Just how much do the planets affect the tides?

2.08.2017 by Kaido Reivelt

The influence of the planets, and planetary alignment on the Earth’s tides is addressed. Starting
from Newton’s law of gravitation, the tidal influence of any celestial body is expressed in terms of
its apparent size and its density. From this, p…

Filed Under: RSS Füüsikaharidus

Designing Kitaev Spin Liquids in Metal-Organic Frameworks

1.08.2017 by Kaido Reivelt

Author(s): Masahiko G. Yamada, Hiroyuki Fujita, and Masaki OshikawaVersatile materials called metal-organic frameworks might be good systems in which to search for quantum spin liquids.[Phys. Rev. Lett. 119, 057202] Published Tue Aug 01, 2017

Filed Under: RSS Teadus

How to watch the total solar eclipse online

1.08.2017 by Kaido Reivelt

Viewing options for astronomy fans outside totality.

Filed Under: RSS Kosmos

Improving physics teaching materials on sound for visually impaired students in high school

1.08.2017 by Kaido Reivelt

When visually impaired students attend regular high school, additional materials are necessary to
help them understand physics concepts. The time for teachers to develop teaching materials for such
students is scarce. Visually impaired students in re…

Filed Under: RSS Füüsikaharidus

Active learning of geometrical optics in high school: the ALOP approach

1.08.2017 by Kaido Reivelt

A group comparison experiment of two high school classes with pre and post instruction testing has
been carried out to study the suitability and advantages of using the active learning of optics and
photonics (ALOP) curricula in high schools of devel…

Filed Under: RSS Füüsikaharidus

Improving physics teaching materials on sound for visually impaired students in high school

1.08.2017 by Kaido Reivelt

When visually impaired students attend regular high school, additional materials are necessary to
help them understand physics concepts. The time for teachers to develop teaching materials for such
students is scarce. Visually impaired students in re…

Filed Under: RSS Füüsikaharidus

NASA’s Voyager Spacecraft Still Reaching for the Stars After 40 Years

31.07.2017 by Kaido Reivelt

Humanity’s farthest and longest-lived spacecraft, Voyager 1 and 2, achieve 40 years of operation and exploration this August and September.

Filed Under: RSS Kosmos

First and Farthest: How the Voyagers Blazed Trails

31.07.2017 by Kaido Reivelt

Few missions can match the achievements of NASA’s groundbreaking Voyager 1 and 2 spacecraft during their 40 years of exploration.

Filed Under: RSS Kosmos

NASA’s Voyager Spacecraft Still Reaching for the Stars After 40 Years

31.07.2017 by Kaido Reivelt

Humanity’s farthest and longest-lived spacecraft, Voyager 1 and 2, achieve 40 years of operation and exploration this August and September.

Filed Under: RSS Kosmos

First and Farthest: How the Voyagers Blazed Trails

31.07.2017 by Kaido Reivelt

Few missions can match the achievements of NASA’s groundbreaking Voyager 1 and 2 spacecraft during their 40 years of exploration.

Filed Under: RSS Kosmos

Mass and Moment of Inertia Govern the Transition in the Dynamics and Wakes of Freely Rising and Falling Cylinders

31.07.2017 by Kaido Reivelt

Author(s): Varghese Mathai, Xiaojue Zhu, Chao Sun, and Detlef LohseThe oscillations of neutrally buoyant cylinders depend on rotational freedom of the objects, as well as their mass.[Phys. Rev. Lett. 119, 054501] Published Mon Jul 31, 2017

Filed Under: RSS Teadus

Evidence for Weakly Correlated Oxygen Holes in the Highest-T_{c} Cuprate Superconductor HgBa_{2}Ca_{2}Cu_{3}O_{8+δ}

31.07.2017 by Kaido Reivelt

Author(s): A. Chainani, M. Sicot, Y. Fagot-Revurat, G. Vasseur, J. Granet, B. Kierren, L. Moreau, M. Oura, A. Yamamoto, Y. Tokura, and D. Malterre

Oxygen-hole correlations in HgBa2Ca2Cu3O8+δ, the highest Tc mercury-based cuprate superconductor, are found to be weaker than those seen in any other cuprate superconductor.


[Phys. Rev. Lett. 119, 057001] Published Mon Jul 31, 2017

Filed Under: RSS Teadus

Testing Galileo

31.07.2017 by Kaido Reivelt

Each Galileo satellite must go through a rigorous test campaign to assure its readiness for space

Filed Under: RSS Kosmos

NASA has selected nine proposals for Explorers Program

31.07.2017 by Kaido Reivelt

These missions will study the Sun and our space environment, as well as develop instruments.

Filed Under: RSS Kosmos

Extreme stellar factory

31.07.2017 by Kaido Reivelt


Space Science Image of the Week: Massive stars emerge from glowing gas and dust in one of the Milky Way’s most active stellar nurseries

Filed Under: RSS Kosmos

Extreme stellar factory

31.07.2017 by Kaido Reivelt


Space Science Image of the Week: Massive stars emerge from glowing gas and dust in one of the Milky Way’s most active stellar nurseries

Filed Under: RSS Kosmos

The flying kettle

31.07.2017 by Kaido Reivelt

A warm meal was quickly delivered by a drone from an ESA business incubator start-up to the last inhabitant in a remote village in Portugal.

Filed Under: RSS Kosmos

The flying kettle

31.07.2017 by Kaido Reivelt

A warm meal was quickly delivered by a drone from an ESA business incubator start-up to the last inhabitant in a remote village in Portugal.

Filed Under: RSS Kosmos

Docking replay

29.07.2017 by Kaido Reivelt

Paolo Nespoli and crewmates arrive at the International Space Station, aboard Soyuz MS-05

Filed Under: RSS Kosmos

Docking replay

29.07.2017 by Kaido Reivelt

Paolo Nespoli and crewmates arrive at the International Space Station, aboard Soyuz MS-05

Filed Under: RSS Kosmos

Welcome aboard

29.07.2017 by Kaido Reivelt

Paolo Nespoli, Randy Bresnik and Sergey Ryazanskiy arrive at the International Space Station

Filed Under: RSS Kosmos

Welcome aboard

29.07.2017 by Kaido Reivelt

Paolo Nespoli, Randy Bresnik and Sergey Ryazanskiy arrive at the International Space Station

Filed Under: RSS Kosmos

ESA astronaut Paolo Nespoli starts third mission on Space Station

29.07.2017 by Kaido Reivelt

ESA astronaut Paolo Nespoli, NASA astronaut Randy Bresnik and Roscosmos commander Sergei Ryazansky were launched into space yesterday from the Baikonur cosmodrome in Kazakhstan at 15:41 GMT (17:41 CEST). Their Soyuz MS-05 spacecraft circle…

Filed Under: RSS Kosmos

ESA astronaut Paolo Nespoli starts third mission on Space Station

28.07.2017 by Kaido Reivelt

ESA astronaut Paolo Nespoli, NASA astronaut Randy Bresnik and Roscosmos commander Sergei Ryazansky were launched into space yesterday from the Baikonur cosmodrome in Kazakhstan at 15:41 GMT (17:41 CEST). Their Soyuz MS-05 spacecraft circle…

Filed Under: RSS Kosmos

Asteroid Flyby Will Benefit NASA Detection and Tracking Network

28.07.2017 by Kaido Reivelt

Scientists plan to use a small asteroid’s close approach to Earth this October to test NASA’s network of observatories and scientists who work with planetary defense.

Filed Under: RSS Kosmos

Asteroid Flyby Will Benefit NASA Detection and Tracking Network

28.07.2017 by Kaido Reivelt

Scientists plan to use a small asteroid’s close approach to Earth this October to test NASA’s network of observatories and scientists who work with planetary defense.

Filed Under: RSS Kosmos

Size-Dependent Localization in Polydisperse Colloidal Glasses

28.07.2017 by Kaido Reivelt

Author(s): D. Heckendorf, K. J. Mutch, S. U. Egelhaaf, and M. Laurati

Imaging of the individual particles of a glass reveals the different behaviors of slightly smaller vs slightly larger particles, suggesting new ways to adjust the properties of commercial glasses.


[Phys. Rev. Lett. 119, 048003] Published Fri Jul 28, 2017

Filed Under: RSS Teadus

Week In Images

28.07.2017 by Kaido Reivelt

Our week through the lens: 24-28 July 2017

Filed Under: RSS Kosmos

You can watch the Great American Eclipse in 4K on Astronomy.com

28.07.2017 by Kaido Reivelt

Our website will host an HD livestream of the event from Denver, Colorado.

Filed Under: RSS Kosmos

Irrawaddy Delta

28.07.2017 by Kaido Reivelt

Earth observation image of the week: the peninsulas and islands of the Irrawaddy Delta in Myanmar captured by Sentinel-2, also featured on the Earth from Space video programme

Filed Under: RSS Kosmos

Eclipse Balloons to Study Effect of Mars-Like Environment on Life

27.07.2017 by Kaido Reivelt

Microbes carried to the edge of space during the Aug. 21 eclipse will be analyzed by NASA’s Ames Research Center and JPL.

Filed Under: RSS Kosmos

Eclipse Balloons to Study Effect of Mars-Like Environment on Life

27.07.2017 by Kaido Reivelt

Microbes carried to the edge of space during the Aug. 21 eclipse will be analyzed by NASA’s Ames Research Center and JPL.

Filed Under: RSS Kosmos

Vita mission liftoff

27.07.2017 by Kaido Reivelt

Watch a replay of the Vita mission liftoff on 28 July

Filed Under: RSS Kosmos

Vita mission liftoff

27.07.2017 by Kaido Reivelt

Watch a replay of the Vita mission liftoff on 28 July

Filed Under: RSS Kosmos

Excitation and Control of Plasma Wakefields by Multiple Laser Pulses

27.07.2017 by Kaido Reivelt

Author(s): J. Cowley, C. Thornton, C. Arran, R. J. Shalloo, L. Corner, G. Cheung, C. D. Gregory, S. P. D. Mangles, N. H. Matlis, D. R. Symes, R. Walczak, and S. M. Hooker

Trains of laser pulses can be used to accelerate high-repetition-rate electron bunches to high energies.


[Phys. Rev. Lett. 119, 044802] Published Thu Jul 27, 2017

Filed Under: RSS Teadus

Superadditivity of the Classical Capacity with Limited Entanglement Assistance

27.07.2017 by Kaido Reivelt

Author(s): Elton Yechao Zhu, Quntao Zhuang, and Peter W. ShorThe capacity of quantum communication channels is predicted to switch from additive to superadditive when entanglement assistance is limited.[Phys. Rev. Lett. 119, 040503] Published Thu Jul 2…

Filed Under: RSS Teadus

Earth from Space

27.07.2017 by Kaido Reivelt


Join us Friday, 28 July, at 10:00 CEST for the ‘Earth from Space’ video programme

Filed Under: RSS Kosmos

One plant at a time

27.07.2017 by Kaido Reivelt

Precision farming is set to become even more precise with a new camera drawing on satellite imaging.  

Thanks to research with ESA on new cameras, hyperspectral cameras flying on drones are now able to see details as small as 4–5 cm.  

Filed Under: RSS Kosmos

One plant at a time

27.07.2017 by Kaido Reivelt

Precision farming is set to become even more precise with a new camera drawing on satellite imaging.  

Thanks to research with ESA on new cameras, hyperspectral cameras flying on drones are now able to see details as small as 4–5 cm.  

Filed Under: RSS Kosmos

New Insights into Titan’s Complex Chemistry

26.07.2017 by Kaido Reivelt

Cassini has made a surprising detection of a molecule that is instrumental in producing complex organics within the hazy atmosphere of Saturn’s moon Titan.

Filed Under: RSS Kosmos

New Insights into Titan’s Complex Chemistry

26.07.2017 by Kaido Reivelt

Cassini has made a surprising detection of a molecule that is instrumental in producing complex organics within the hazy atmosphere of Saturn’s moon Titan.

Filed Under: RSS Kosmos

In-Plane Propagation of Light in Transition Metal Dichalcogenide Monolayers: Optical Selection Rules

26.07.2017 by Kaido Reivelt

Author(s): G. Wang, C. Robert, M. M. Glazov, F. Cadiz, E. Courtade, T. Amand, D. Lagarde, T. Taniguchi, K. Watanabe, B. Urbaszek, and X. Marie

The electric field of light emitted from transition metal dichalcogenide monolayers is found to be oriented perpendicularly to the monolayer plane.


[Phys. Rev. Lett. 119, 047401] Published Wed Jul 26, 2017

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Ready to roll

26.07.2017 by Kaido Reivelt

Human spaceflight image of the week: Soyuz is rolled out ahead of Vita mission launch

Filed Under: RSS Kosmos

Astronomers detect a supernova brighter than all the Milky Way’s stars combined

26.07.2017 by Kaido Reivelt

This may be the earliest supernova ever detected.

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Africa grows green

26.07.2017 by Kaido Reivelt


Technology image of the week: ESA’s Proba-V minisatellite shows vegetation bloom across the African Sahel with the coming of the rainy season

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Correlation of understanding of physics and psychological symptoms among high-school students in Greece

26.07.2017 by Kaido Reivelt

Depression may essentially influence cognitive function contributing to poor school performance. The
present study undertakes to determine the existence and strength of correlation between depressive
symptomatology and other mental conditions with th…

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Finding the acceleration and speed of a light-emitting object on an inclined plane with a smartphone light sensor

26.07.2017 by Kaido Reivelt

This study investigates how the acceleration and speed of a light-emitting object on an inclined
plane may be determined using a smartphone’s light sensor. A light-emitting object was released from
the top of an inclined plane and its illuminance v…

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Large, Distant Comets More Common Than Previously Thought

25.07.2017 by Kaido Reivelt

NASA’s WISE spacecraft, scanning the entire sky at infrared wavelengths, has delivered new insights about distant cometary wanderers.

Filed Under: RSS Kosmos

NASA Solves a Drizzle Riddle

25.07.2017 by Kaido Reivelt

What makes clouds drizzle? A new study overturns a common assumption about raindrop size.

Filed Under: RSS Kosmos

NASA Solves a Drizzle Riddle

25.07.2017 by Kaido Reivelt

What makes clouds drizzle? A new study overturns a common assumption about raindrop size.

Filed Under: RSS Kosmos

Large, Distant Comets More Common Than Previously Thought

25.07.2017 by Kaido Reivelt

NASA’s WISE spacecraft, scanning the entire sky at infrared wavelengths, has delivered new insights about distant cometary wanderers.

Filed Under: RSS Kosmos

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