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Cassini Finds Flooded Canyons on Titan

10.08.2016 by Kaido Reivelt

NASA’s Cassini spacecraft has found deep, steep-sided canyons on Saturn’s moon Titan that are flooded with liquid hydrocarbons.

Filed Under: RSS Kosmos

Cassini Finds Flooded Canyons on Titan

10.08.2016 by Kaido Reivelt

NASA’s Cassini spacecraft has found deep, steep-sided canyons on Saturn’s moon Titan that are flooded with liquid hydrocarbons.

Filed Under: RSS Kosmos

Possible “Magnéli” Phases and Self-Alloying in the Superconducting Sulfur Hydride

10.08.2016 by Kaido Reivelt

Author(s): Ryosuke Akashi, Wataru Sano, Ryotaro Arita, and Shinji TsuneyukiThe emergence of an infinite number of metastable crystal phases may play a role in the high-pressure superconducting phase transition of sulfur hydride according to new ab init…

Filed Under: RSS Teadus

Humanity may not need a warp drive to go interstellar

10.08.2016 by Kaido Reivelt

Here are a few ways that humanity may be able to leave the cradle of Earth.

Filed Under: RSS Kosmos

NASA releases over 1,000 new images of the Red Planet

10.08.2016 by Kaido Reivelt

The Mars Reconnaissance Orbiter (MRO) sent 1,035 photos of Mars back to Earth.

Filed Under: RSS Kosmos

Titan’s canyons are flooded with methane

10.08.2016 by Kaido Reivelt

Saturn’s largest moon is beginning to look more and more like a bizarro Earth.

Filed Under: RSS Kosmos

Shiny on the outside

10.08.2016 by Kaido Reivelt

Technology image of the week: the blankets of multi-layer insulation that make satellites look like wrapped-up Christmas gifts

Filed Under: RSS Kosmos

Development and validation of the photoelectric effect concept inventory

10.08.2016 by Kaido Reivelt

This study aims to develop a multiple-choice instrument for determining students’ concepts about the
photoelectric effect. To develop the instrument, 30 students taking the Modern Physics course were
interviewed to determine their misconceptions ab…

Filed Under: RSS Füüsikaharidus

Symmetry of the Lorentz boost: the relativity of colocality and Lorentz time contraction

10.08.2016 by Kaido Reivelt

Since the Lorentz boost is symmetric under exchange of x and ct , special relativistic phenomena
will also manifest this symmetry. Firstly, simultaneity becomes paired with ‘colocality’ (‘at the
same place’), and the ‘Relativity of Colocali…

Filed Under: RSS Füüsikaharidus

Projectile motion of a once rotating object: physical quantities at the point of return

10.08.2016 by Kaido Reivelt

Vertical circular motion is a widely used example to explain non-uniform circular motion in most
undergraduate general physics textbooks. However, most of these textbooks do not elaborate on the
case when this motion turns into projectile motion unde…

Filed Under: RSS Füüsikaharidus

Follow instructions

9.08.2016 by Kaido Reivelt

Human spaceflight and robotic exploration image of the week: testing new version of astronaut instruction manual underwater

Filed Under: RSS Kosmos

Frozen Impacted Drop: From Fragmentation to Hierarchical Crack Patterns

9.08.2016 by Kaido Reivelt

Author(s): Elisabeth Ghabache, Christophe Josserand, and Thomas Séon

Water droplets impacting a cold surface exhibit a variety of fracture patterns depending on the temperature of the surface.


[Phys. Rev. Lett. 117, 074501] Published Tue Aug 09, 2016

Filed Under: RSS Teadus

Astronomers Without Borders eclipse campaign promotes STEM education in Africa

9.08.2016 by Kaido Reivelt

From our friends at Astronomers Without Borders.

Filed Under: RSS Kosmos

The most mysterious star in the galaxy doubles down on its mystique

9.08.2016 by Kaido Reivelt

New research points to Tabby’s Star dimming immensely over a four year time period.

Filed Under: RSS Kosmos

Touch on climate

9.08.2016 by Kaido Reivelt

Discover our planet’s changing climate through the eyes of satellites with Climate from Space, a new iPad App featuring interactive maps and video interviews with top scientists

Filed Under: RSS Kosmos

Aerodynamics in the amusement park: interpreting sensor data for acceleration and rotation

9.08.2016 by Kaido Reivelt

The sky roller ride depends on interaction with the air to create a rolling motion. In this paper,
we analyse forces, torque and angular velocities during different parts of the ride, combining a
theoretical analysis, with photos, videos as well as w…

Filed Under: RSS Füüsikaharidus

NuSTAR Principal Investigator Honored for Research

8.08.2016 by Kaido Reivelt

Fiona Harrison, principal investigator of NASA’s NuSTAR (Nuclear Spectroscopic Telescope Array) mission, has been selected to receive the 2016 Massey Award, given by the Committee on Space Research (COSPAR).

Filed Under: RSS Kosmos

NuSTAR Principal Investigator Honored for Research

8.08.2016 by Kaido Reivelt

Fiona Harrison, principal investigator of NASA’s NuSTAR (Nuclear Spectroscopic Telescope Array) mission, has been selected to receive the 2016 Massey Award, given by the Committee on Space Research (COSPAR).

Filed Under: RSS Kosmos

Splashup

8.08.2016 by Kaido Reivelt

Ending 16 days underwater to simulate a space mission

Filed Under: RSS Kosmos

Two years on

8.08.2016 by Kaido Reivelt

Rosetta celebrates two incredible years at the comet

Filed Under: RSS Kosmos

Three-Dimensional Icosahedral Phase Field Quasicrystal

8.08.2016 by Kaido Reivelt

Author(s): P. Subramanian, A. J. Archer, E. Knobloch, and A. M. Rucklidge

A 3D phase field crystal model is used to explore the formation and stability of icosahedral quasicrystals. The mechanisms that stabilize 2D quasicrystals also play a role in this 3D system.


[Phys. Rev. Lett. 117, 075501] Published Mon Aug 08, 2016

Filed Under: RSS Teadus

Searches for Sterile Neutrinos with the IceCube Detector

8.08.2016 by Kaido Reivelt

Author(s): M. G. Aartsen et al. (IceCube Collaboration)

A search for sterile neutrinos with the IceCube detector has found no evidence for the hypothetical particles, significantly narrowing the range of masses that a new kind of neutrino could possibly have.


[Phys. Rev. Lett. 117, 071801] Published Mon Aug 08, 2016

Filed Under: RSS Teadus

Mercury has been inactive for a long time

8.08.2016 by Kaido Reivelt

Researchers find that volcanic activity ended approximately 3.5 billion years ago on Mercury.

Filed Under: RSS Kosmos

How long is a day on the Sun?

8.08.2016 by Kaido Reivelt

The easiest answer is, it depends.

Filed Under: RSS Kosmos

When did the lights turn on in the universe?

8.08.2016 by Kaido Reivelt

The universe lived through a prolonged “Dark Ages” until hydrogen reionized. Now, researchers are closer to figuring out when that happened.

Filed Under: RSS Kosmos

Gender and physics: a sociological approach

8.08.2016 by Kaido Reivelt

In this paper, I take a sociological approach to understanding the under-representation of gender
and physics. I argue that gender is something we do not something that we are. Thus, every aspect of
our behaviour, including our engagement (or not) wi…

Filed Under: RSS Füüsikaharidus

Air density measurement with a falling A4 sheet

8.08.2016 by Kaido Reivelt

We propose a simple experiment on the air density measurement which does not require any special
equipment: just an A4 sheet of paper, a stopwatch and a ruler. The discussed method uses the most
basic air resistance model.

Filed Under: RSS Füüsikaharidus

The Carnot cycle and the teaching of thermodynamics: a historical approach

8.08.2016 by Kaido Reivelt

The Carnot cycle is a topic that is traditionally present in introductory physics courses dedicated
to the teaching of thermodynamics, playing an essential role in introducing the concept of Entropy
and the consequent formulation of the second Law. I…

Filed Under: RSS Füüsikaharidus

Particle physics for primary schools—enthusing future physicists

8.08.2016 by Kaido Reivelt

In recent years, the realisation that children make decisions and choices about subjects they like
in primary school, became widely understood. For this reason academic establishments focus some of
their public engagement activities towards the young…

Filed Under: RSS Füüsikaharidus

Exploring electrical resistance: a novel kinesthetic model helps to resolve some misconceptions

8.08.2016 by Kaido Reivelt

A simple ‘hands on’ physical model is described which displays analogous behaviour to some aspects
of the free electron theory of metals. Using it students can get a real feel for what is going on
inside a metallic conductor. Ohms Law, the temper…

Filed Under: RSS Füüsikaharidus

Microwave Realization of the Gaussian Symplectic Ensemble

5.08.2016 by Kaido Reivelt

Author(s): A. Rehemanjiang, M. Allgaier, C. H. Joyner, S. Müller, M. Sieber, U. Kuhl, and H.-J. Stöckmann

A circuit of microwave cavities exhibiting chaotic dynamics and antiunitary symmetry is demonstrated. This is the first experimental observation of a Gaussian symplectic ensemble, one of the three classical matrix ensembles.


[Phys. Rev. Lett. 117, 064101] Published Fri Aug 05, 2016

Filed Under: RSS Teadus

Measurement of the CP Asymmetry in B_{s}^{0} −B [over ¯] _{s}^{0} Mixing

5.08.2016 by Kaido Reivelt

Author(s): R. Aaij et al. (LHCb Collaboration)The rate difference between two CP-conjugate decays of bottom-strange mesons shows no sign of deviation from the Standard Model, in contrast to a previous hint.[Phys. Rev. Lett. 117, 061803] Published Fri A…

Filed Under: RSS Teadus

Detecting Gravitational-Wave Memory with LIGO: Implications of GW150914

5.08.2016 by Kaido Reivelt

Author(s): Paul D. Lasky, Eric Thrane, Yuri Levin, Jonathan Blackman, and Yanbei Chen

A theoretical analysis suggests that advanced LIGO may be able to detect gravitational wave memory–permanent distortion of spacetime due to nonlinear effects predicted by general relativity–when it operates at its design sensitivity.


[Phys. Rev. Lett. 117, 061102] Published Fri Aug 05, 2016

Filed Under: RSS Teadus

Perseid meteor shower set for its best show in nearly 20 years

5.08.2016 by Kaido Reivelt

You can expect to see up to 150 ‘shooting stars’ per hour when 2016’s best meteor shower peaks the night of August 11/12.

Filed Under: RSS Kosmos

Ancient evaporating lakes formed veins on Mars

5.08.2016 by Kaido Reivelt

Martian veins at Yellowknife Bay at Gale Crater are evidence of ancient water on the Red Planet.

Filed Under: RSS Kosmos

This ESA video shows how hard it is to orbit a comet

5.08.2016 by Kaido Reivelt

Rosetta was a rousing success. Here’s why that was quite an accomplishment.

Filed Under: RSS Kosmos

Week In Images

5.08.2016 by Kaido Reivelt

Our week through the lens: 1-5 August 2016

Filed Under: RSS Kosmos

Comet odyssey

5.08.2016 by Kaido Reivelt


Animation visualising Rosetta’s two-year adventure flying alongside a comet

Filed Under: RSS Kosmos

Understanding zero-point energy in the context of classical electromagnetism

5.08.2016 by Kaido Reivelt

Today’s textbooks of electromagnetism give the particular solution to Maxwell’s equations involving
the integral over the charge and current sources at retarded times. However, the texts fail to
emphasise that the choice of the incoming-wave boun…

Filed Under: RSS Füüsikaharidus

Revealing a quantum feature of dimensionless uncertainty in linear and quadratic potentials by changing potential intervals

5.08.2016 by Kaido Reivelt

As an undergraduate exercise, in an article (2012 Am. J. Phys. 80
[http://dx.doi.org/10.1119/1.4720101] 780–14 ), quantum and classical uncertainties for
dimensionless variables of position and momentum were evaluated in three potentials: infinite …

Filed Under: RSS Füüsikaharidus

The rain-powered cart

5.08.2016 by Kaido Reivelt

A frictionless cart in the shape of a right triangle (with the vertical side forward) is elastically
impacted by vertically falling raindrops. The speed of the cart as a function of time can be
analytically deduced as an exercise in the use of trigon…

Filed Under: RSS Füüsikaharidus

NASA Rover Game Released for Curiosity’s Anniversary

4.08.2016 by Kaido Reivelt

Nearing the fourth anniversary of Curiosity landing on Mars, the rover works on collecting a 17th sample, while Earthlings can play a new social media game about Mars exploration.

Filed Under: RSS Kosmos

Study Maps Hidden Water Pollution in U.S. Coastal Areas

4.08.2016 by Kaido Reivelt

A new study finds coastal waters and water supplies along a fifth of U.S. coasts are vulnerable to pollution from hidden underground water transfers between oceans and land.

Filed Under: RSS Kosmos

Astronomers Catalog Planets That May Be Earthlike

4.08.2016 by Kaido Reivelt

Using public data collected by NASA’s Kepler mission, astronomers have catalogued the planet candidates that may be similar to our third rock from the sun.

Filed Under: RSS Kosmos

Study Maps Hidden Water Pollution in U.S. Coastal Areas

4.08.2016 by Kaido Reivelt

A new study finds coastal waters and water supplies along a fifth of U.S. coasts are vulnerable to pollution from hidden underground water transfers between oceans and land.

Filed Under: RSS Kosmos

NASA Rover Game Released for Curiosity’s Anniversary

4.08.2016 by Kaido Reivelt

Nearing the fourth anniversary of Curiosity landing on Mars, the rover works on collecting a 17th sample, while Earthlings can play a new social media game about Mars exploration.

Filed Under: RSS Kosmos

Here’s how we might survive the destruction of Earth

4.08.2016 by Kaido Reivelt

Neal Stephenson is here to tell you about preparing for the biggest emergency.

Filed Under: RSS Kosmos

The first private spaceflight company is cleared for a moon landing

4.08.2016 by Kaido Reivelt

A private spaceflight company, Moon Express, received approval to land on the Moon.

Filed Under: RSS Kosmos

What’s Inside Ceres? New Findings from Gravity Data

3.08.2016 by Kaido Reivelt

A new study suggests Ceres has a weak interior, and that water and other light materials separated from rock during a heating phase early in its history.

Filed Under: RSS Kosmos

NASA Maps Thawed Areas Under Greenland Ice Sheet

3.08.2016 by Kaido Reivelt

NASA has helped produce the first map of thawing at the bottom of the Greenland Ice Sheet — key information in better predicting how it will react to a warming climate.

Filed Under: RSS Kosmos

NASA Maps Thawed Areas Under Greenland Ice Sheet

3.08.2016 by Kaido Reivelt

NASA has helped produce the first map of thawing at the bottom of the Greenland Ice Sheet — key information in better predicting how it will react to a warming climate.

Filed Under: RSS Kosmos

What’s Inside Ceres? New Findings from Gravity Data

3.08.2016 by Kaido Reivelt

A new study suggests Ceres has a weak interior, and that water and other light materials separated from rock during a heating phase early in its history.

Filed Under: RSS Kosmos

Dawn got a peak at why lies beneath Ceres’ surface

3.08.2016 by Kaido Reivelt

A new study reveals what lies deep inside the dwarf planet, Ceres.

Filed Under: RSS Kosmos

Io has a unique collapsing atmosphere

3.08.2016 by Kaido Reivelt

Jupiter’s closest moon, Io, has an atmosphere that collapses when it is eclipsed by the gas giant.

Filed Under: RSS Kosmos

Trying on a coat

3.08.2016 by Kaido Reivelt


Technology image of the week: candidate coatings for a new space antenna seen undergoing testing at ESA’s technical heart

Filed Under: RSS Kosmos

Computations in quantum mechanics made easy

3.08.2016 by Kaido Reivelt

Convenient and simple numerical techniques for performing quantum computations based on matrix
representations of Hilbert space operators are presented and illustrated by various examples. The
applications include the calculations of spectral and dyn…

Filed Under: RSS Füüsikaharidus

NASA Spacecraft Views Huge Burn Area in LA’s Backyard

2.08.2016 by Kaido Reivelt

A new image from a NASA spacecraft shows the area burned in the Sand Fire near Los Angeles.

Filed Under: RSS Kosmos

NASA Spacecraft Views Huge Burn Area in LA’s Backyard

2.08.2016 by Kaido Reivelt

A new image from a NASA spacecraft shows the area burned in the Sand Fire near Los Angeles.

Filed Under: RSS Kosmos

Aladin wind probe ready for Aeolus

2.08.2016 by Kaido Reivelt

It has been years in the making, but one of the trickiest pieces of space technology ever developed is finally ready to join its satellite for launch by the end of next year. With this milestone, we are another step closer to a better understanding of Earth’s winds.

Filed Under: RSS Kosmos

Astronomers found a large void of young stars in the Milky Way

2.08.2016 by Kaido Reivelt

There is a surprising lack of Cepheid Variable stars in the center of our Milky Way galaxy.

Filed Under: RSS Kosmos

Could life on Earth have occurred prematurely?

2.08.2016 by Kaido Reivelt

A new study suggests that present-day life appeared early.

Filed Under: RSS Kosmos

Distant hissing tells of a famous exploded star’s past

2.08.2016 by Kaido Reivelt

Radio astronomy reveals millions of years of the supernova remnant 1987A’s life.

Filed Under: RSS Kosmos

Maybe black holes really can destroy the world

1.08.2016 by Kaido Reivelt

Gamma-ray bursts (GRBs) really could kill us all from light-years away, but don’t fret too hard yet.

Filed Under: RSS Kosmos

Juno is at a crossroads as it prepares to finish a capture orbit

1.08.2016 by Kaido Reivelt

The spacecraft will soon get to test its instruments before its science phase begins.

Filed Under: RSS Kosmos

How does Mars rover Curiosity’s new AI system work?

1.08.2016 by Kaido Reivelt

NASA upgraded Curiosity with computer vision, letting it choose interesting rocks on its own.

Filed Under: RSS Kosmos

Majestic solar eruption

1.08.2016 by Kaido Reivelt

Space science image of the week: A gigantic loop of fiery gas reaches out into space

Filed Under: RSS Kosmos

Uncovering what lies beneath

1.08.2016 by Kaido Reivelt

A key feature of the James Webb Space Telescope is helping to shed light on what goes on underneath boats in stormy weather and around the structures of offshore oilrigs.

Filed Under: RSS Kosmos

Preparation of graphite conductive paint and its application to the construction of RC circuits on paper

1.08.2016 by Kaido Reivelt

We describe a simple procedure for the preparation of graphite-based conductive paint and determine
its basic transport properties when applied, comparing them to those of pencil strokes. Ohm’s law
was fulfilled on the applied paint, which makes it…

Filed Under: RSS Füüsikaharidus

Mars Gullies Likely Not Formed by Liquid Water

29.07.2016 by Kaido Reivelt

New findings using data from NASA’s Mars Reconnaissance Orbiter show that gullies on modern Mars are likely not being formed by flowing liquid water.

Filed Under: RSS Kosmos

Five Years Post-Launch, Juno Is at a Turning Point

29.07.2016 by Kaido Reivelt

Five years after departing Earth, and a month after slipping into orbit around Jupiter, NASA’s Juno spacecraft is nearing a turning point.

Filed Under: RSS Kosmos

Five Years Post-Launch, Juno Is at a Turning Point

29.07.2016 by Kaido Reivelt

Five years after departing Earth, and a month after slipping into orbit around Jupiter, NASA’s Juno spacecraft is nearing a turning point.

Filed Under: RSS Kosmos

Mars Gullies Likely Not Formed by Liquid Water

29.07.2016 by Kaido Reivelt

New findings using data from NASA’s Mars Reconnaissance Orbiter show that gullies on modern Mars are likely not being formed by flowing liquid water.

Filed Under: RSS Kosmos

Berry Phase in Lattice QCD

29.07.2016 by Kaido Reivelt

Author(s): Arata YamamotoThe Berry phase of a single fermion wave function in two spatial dimensions is calculated using lattice field theory.[Phys. Rev. Lett. 117, 052001] Published Fri Jul 29, 2016

Filed Under: RSS Teadus

Week In Images

29.07.2016 by Kaido Reivelt

Our week through the lens: 25-29 July 2016

Filed Under: RSS Kosmos

The scratches on Mars’ surface were not made by water’s harsh touch

29.07.2016 by Kaido Reivelt

Liquid water was likely not the culprit for forming the gullies on Mars.

Filed Under: RSS Kosmos

Black holes sing, but only in X-ray

29.07.2016 by Kaido Reivelt

Astronomers have finally found evidence of “high-pitched” singing black holes.

Filed Under: RSS Kosmos

This team hopes to find “another Earth” around Alpha Centauri

29.07.2016 by Kaido Reivelt

A project dedicated to answering the question, are we alone in the universe?

Filed Under: RSS Kosmos

‘From the cat’s point of view’: upper secondary physics students’ reflections on Schrödinger’s thought experiment

29.07.2016 by Kaido Reivelt

The thought experiment ‘Schrödinger’s cat’ exposes fundamental dilemmas in how we interpret quantum
physics, and has a potential for deepening students’ understanding of this part of modern physics,
including its philosophical consequences. …

Filed Under: RSS Füüsikaharidus

Corrigendum: Basic ideas and concepts in hot wire anemometry: an experimental approach for introductory physics students (2016 Phys. Educ . 51 015008)

29.07.2016 by Kaido Reivelt

Description unavailable

Filed Under: RSS Füüsikaharidus

An investigation into the effectiveness of smartphone experiments on students’ conceptual knowledge about acceleration

29.07.2016 by Kaido Reivelt

This study is a first attempt to investigate effectiveness of smartphone-based activities on
students’ conceptual understanding of acceleration. 143 secondary school students (15–16 years old)
were involved in two types of activities: smartphone-…

Filed Under: RSS Füüsikaharidus

Chorus of Black Holes Sings in X-Rays

28.07.2016 by Kaido Reivelt

Supermassive black holes in the universe are like a raucous choir singing in the language of X-rays. When black holes pull in surrounding matter, they let out powerful X-ray bursts.

Filed Under: RSS Kosmos

Chorus of Black Holes Sings in X-Rays

28.07.2016 by Kaido Reivelt

Supermassive black holes in the universe are like a raucous choir singing in the language of X-rays. When black holes pull in surrounding matter, they let out powerful X-ray bursts.

Filed Under: RSS Kosmos

How are comets born?

28.07.2016 by Kaido Reivelt

Rosetta paints comets as ancient leftovers of the early Solar System, not young fragments born from collisions

Filed Under: RSS Kosmos

How to Reach a Thousand-Second in-Plane Polarization Lifetime with 0.97−GeV/c Deuterons in a Storage Ring

28.07.2016 by Kaido Reivelt

Author(s): G. Guidoboni et al. (JEDI Collaboration)Researchers set a new record for the in-plane spin-alignment lifetime of deuterons circulating in a magnetic storage ring.[Phys. Rev. Lett. 117, 054801] Published Thu Jul 28, 2016

Filed Under: RSS Teadus

How to Reach a Thousand-Second in-Plane Polarization Lifetime with 0.97−GeV/c Deuterons in a Storage Ring

28.07.2016 by Kaido Reivelt

Author(s): G. Guidoboni et al. (JEDI Collaboration)Researchers set a new record for the in-plane spin-alignment lifetime of deuterons circulating in a magnetic storage ring.[Phys. Rev. Lett. 117, 054801] Published Thu Jul 28, 2016

Filed Under: RSS Teadus

Mission controllers

28.07.2016 by Kaido Reivelt

Operations image of the week: A happy mission control team at ESA just after ExoMars completed its first deep-space engine firing en route to the Red Planet

Filed Under: RSS Kosmos

Earth from Space

28.07.2016 by Kaido Reivelt


Join us Friday, 29 July, at 10:00 CEST for the ‘Earth from Space’ video programme. This week features a Sentinel-2A image of northeastern Iran

Filed Under: RSS Kosmos

How to see the Delta Aquariid meteor shower

28.07.2016 by Kaido Reivelt

Head out under a clear, dark sky after midnight these next couple of nights and you’ll see a dramatic display of “shooting stars.”

Filed Under: RSS Kosmos

This supernova exploded not once, but twice

28.07.2016 by Kaido Reivelt

Astronomers find a superluminous supernova that seems to have exploded twice.

Filed Under: RSS Kosmos

Cosmic rays may have left Apollo astronauts with weaker hearts

28.07.2016 by Kaido Reivelt

A new study suggests that exposure to deep space made its mark on those that went to the Moon.

Filed Under: RSS Kosmos

Tumeaine osake jäi ka seekord detekteerimata

28.07.2016 by Kaido Reivelt

Kosmoloogia ütleb, et galaktikate tekkimise ja evolutsiooni seletamiseks peab 80% Universumi ainest olema tumeaine. Tumeaine ei mõjuta kuidagi valgust, nii et tumeainet ei saa näha (sellest ka nimi).  Tumeaine tekitab gravitatsiooni. Osakestefüüsikud üritavad leida osakest, millest tumeaine koosneb. Seni edutult, sest neil päevil oma töö lõpetanud LUX tumeaine detektor ei suutnud detekteerida nõrgalt interakteeruvaid massiivseid osakesi […]

Filed Under: Teadusuudised, Uncategorized

Engine burn gives Mars mission a kick

28.07.2016 by Kaido Reivelt

Following a lengthy firing of its powerful engine this morning, ESA’s ExoMars Trace Gas Orbiter is on track to arrive at the Red Planet in October.

Filed Under: RSS Kosmos

Bimetal switches in an AND logic gate

28.07.2016 by Kaido Reivelt

In this frontline, we use bimetal switches to provide inputs in an electrical AND logic gate. These
switches can be obtained from the pre-heat starters of fluorescent lamps, by safely removing the
glass enclosure. They may be activated by small open …

Filed Under: RSS Füüsikaharidus

Comment about the use of Monte-Carlo methodology for the representation of atomic electronic densities

28.07.2016 by Kaido Reivelt

Representations of atomic orbitals based on Monte-Carlo (MC) approaches are not always correct when
using various sets of orthogonal coordinates other than Cartesian coordinates. The analysis proposed
here gives elements for a proper use of MC method…

Filed Under: RSS Füüsikaharidus

Loneliest Young Star Seen by Spitzer and WISE

27.07.2016 by Kaido Reivelt

Alone on the cosmic road, far from any known celestial object, a young, independent star is going through a tremendous growth spurt.

Filed Under: RSS Kosmos

Loneliest Young Star Seen by Spitzer and WISE

27.07.2016 by Kaido Reivelt

Alone on the cosmic road, far from any known celestial object, a young, independent star is going through a tremendous growth spurt.

Filed Under: RSS Kosmos

Sand and sea

27.07.2016 by Kaido Reivelt

The Sentinel-3A satellite recently caught this image of a dust storm blowing east across the Red Sea

Filed Under: RSS Kosmos

A young star is living out a growth spurt far from any other objects

27.07.2016 by Kaido Reivelt

A juvenile, independent star is going through a long-lived outburst.

Filed Under: RSS Kosmos

Something below Jupiter’s Great Red Spot whips up temperatures hotter than the rest of the planet

27.07.2016 by Kaido Reivelt

For decades, the mystery has kept researchers scratching their heads. Now, we may find an answer.

Filed Under: RSS Kosmos

Violent white dwarf lashes its stellar companion with intense radiation

27.07.2016 by Kaido Reivelt

A strange new type of binary star system has been found with terrible manners.

Filed Under: RSS Kosmos

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