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Friday, August 2, 2013
The Doppler Effect and long-planet
We are all familiar
with the Doppler Effect, even if you do not know the term. Today, scientists
have found an alternative explanation for the phenomenon when the sound or the light spinning object is scattered. This discovery could help astronomers to
measure the rotation of the planet, or even improve the performance of wind
turbines.
Here is what the
principle of the Doppler Effect: when the object emitting the noise is moving
towards its sound waves converge together and produce a higher frequency.
Conversely, when the subject moves away, the sound waves are scattered. The
faster the object moves, the sharper the frequency difference.
Wednesday, July 31, 2013
Surviving a Zombie Apocalypse: Just Do the Math
This equation could
spell your doom: (bN)(S/N)Z = bSZ. That is, if you ever found yourself in the
midst of a zombie pandemic.
That's because the
calculation describes the rate of zombie transmission, from one walking dead
individual to many, according to its creators, Robert J. Smith?, a mathematics
professor at the University of Ottawa who spells his name with a "?"
at the end, and his students.
Big Bang Light Reveals Minimum Lifetime of Photons
The notion of the speed
of light as the cosmic speed limit is based on the assumption that particles of
light, called photons, have no mass. But astrophysical observations cannot rule
out the slim chance that photons do have a tiny bit of mass—a prospect with
wide ramifications in physics. For instance, if photons weigh nothing at all,
they would be completely stable and could theoretically last forever. But if
they do have a little mass, they could eventually decay into lighter particles.
SpaceX wins bid to launch Canadian radar satellites
Privately owned Space
Exploration Technologies was selected to launch a trio of Canadian radar
satellites aboard a single Falcon 9 rocket, the company announced on Tuesday.
The California-based
firm, also known as SpaceX, already is flying NASA cargo to the International
Space Station, a permanently staffed research outpost that flies about 250
miles above Earth.
NASA Astronaut Says Spacesuit Water Leak Was 'Scary Situation'
The mysterious leak that
cut a spacewalk short two weeks ago was apparently as frightening as it looked
to those of us watching on NASA TV.
On July 16, NASA
astronaut Chris Cassidy and his European colleague Luca Parmitano hustled back
inside the International Space Station after water began filling Parmitano's
helmet,
Stunning New Photo of Andromeda Galaxy Taken by New High-Res Instrument
A new portrait of the
Milky Way's neighbor, Andromeda, shows our twin galaxy in a whole new light
thanks to a new instrument on Japan's Subaru telescope at the summit of
Hawaii's Mauna Kea.
The instrument, called
the Hyper-Suprime Cam (HSC), provides sharp images of the cosmos across a wide
field of view.
Monday, July 29, 2013
Slingatron just throw cargo into orbit
Mankind has more than
half a century sends a rocket into space, but it costs a lot of money.
Therefore, there is a new idea that should simplify things.
Company HyperV
Technologies Corp. Virginia through Kickstarter hopes to raise money to build a
high-speed mechanical accelerator masspod name Slingatron.
Virtual glasses and drones together in Oculus Rift FPV
Since started shipping
the first sets of Oculus Rift, in a number of creative models of virtual
reality glasses together with other devices to form a completely new devices.
Although most have done
a good job of immersing users into the virtual environment, the latest project
from Intuitive Aerial can provide unique insights into the real world.
Wind Vault House catches the wind
Keeping cool in
tropical Singapore could be the whole problem, even if someone decides to turn
to expensive and wasteful air conditioners to complete.
So when Wallflower
Architecture and Design began to create Wind Vault House in the island nation,
the company has established an elaborate system of passive cooling.
A bit like a store Wind
Vault House to be honest, so far very attractive building.
Astronomers are digging under the brown dwarfs
Astronomers have
focused all their attention on brown dwarfs, trying to uncover all of their
secrets. Despite the fact that brown dwarfs are not the full-fledged stars, and
substars and occupy an intermediate niche between these massive stars and
planets, they cause enormous interest among scientists. Astronomers from around
the world are trying to figure out what is more like brown dwarfs: the planets
or stars. What a performance they made more or are they still are an entirely
different stage of development than the traditional brown dwarfs and planets.
In addition, the astronomers looking for protoplanetary disks around brown
dwarfs, and the worlds that are formed in these disks.
Hubble Space Telescope photographed a few nearby galaxies
This galaxy is like a
giant funnel that sucks in everything that falls into it. According to the
scientists, "Whirlpool" - is a classic spiral galaxy diameter of 100
thousand light-years. It is a favorite subject of Earth observation from amateur
astronomers, since it has contrasting branches, because of which it is
perfectly visible through a telescope.
Hubble has also managed
to remove the flash bright star in the galaxy M59 (pictured below).
Sunday, July 28, 2013
The bottom of the path from the Martian mountains "Point Solander"
The rover Opportunity
starts climbing the hilly area and is making his way to his first
mountain-called "Point Solander." This will be the first
"mountain" climbing to the rover. As expected, scientists, the view
from the surface of the hill must be impressive.
Currently, the rover
has done only a few short "steps" to the south, from his landing on
the north side, and so far passed through a relatively flat plain along the rim
of the crater rim of Endeavour. The rover is at a distance of only about 180
meters from the mountain, "Solander Point."
The third brightest supernova discovered in the spiral galaxy M74
M74 is a classic spiral
galaxy with arms that rotate their bright shimmering light, the stars with very
dense cores. The galaxy is at a distance of 32 million light-years from Earth
in the constellation of Pisces. M74 contains about 100 billion stars. The
spiral arms are dotted with dense star clusters and pink clouds of fluorescing
hydrogen gas.
NASA selects the 8 best research proposals
NASA will fund the
program for which you will be competitively selected eight-developed proposals
for research on how complex fluids and macromolecules behave in microgravity.
Experiments in this research will be conducted aboard the International Space
Station.
These experiments and
research should be the basis on which NASA scientists and engineers will need
to find solution to the problems facing man in space,
Saturday, July 27, 2013
Super-dense neutron stars and their secrets
Scientists have new
clue to the strange operation of neutron stars - these objects are so dense
that they compress the mass of several suns in the space of less than a
terrestrial city.
Neutron stars are born
when a massive star runs out of fuel for nuclear fusion and decay. They cast
off its outer layers, and their nuclei are compressed by gravity and become
denser and denser.
Friday, July 26, 2013
The new telescope IRIS transmits the first data about the mysterious region of the Sun
The newest solar
observatory NASA IRIS has received the first data of the lowest layers of the
solar atmosphere; it is mysterious and yet poorly understood sunny area.
Data obtained in just
21 hours after the preparation and inclusion of the telescope had already
reveal new details about the lower layers of the solar atmosphere.
Thursday, July 25, 2013
Ariane-5 led 2 satellites into orbit
July 25 this year at
23:54 MSK to launch space complex ELA-3 launch vehicle launched from Kourou Ariane-5
with satellites Alphasat (Inmarsat XL) and INSAT-3D.
After 2:25 minutes
after the launch rocket boosters separated at 3:18 min folded fairing / TD / 9
minutes separated the first stage, after 27 minutes, the spacecraft Alphasat separated
from the 2nd stage of the launch, and by 29 th INSAT-3D. Both satellites
successfully uncovered the solar panels / SB /.
Shed light on the brightest objects in the universe
The Dartmouth team of
astrophysicists discovered the extent to which the quasars and black holes can
influence their own galaxy.
The team plans to
publish an article in Astrophysical Journal, which details made the
discovery and research based on the constant lookout for 10yu quasars.
Researchers have documented enormous capacity for radiation from quasars, which
reach for many thousands of light-years distant, even beyond their own
galaxies.
Wednesday, July 24, 2013
NASA wants to exceed the speed of light
Nobody is surprised that NASA wishes to exceed the
speed of light, which to our knowledge is the fastest in the universe. Most
potentially habitable planets found the U.S. space agency are several light
years away, meaning that for many years we would need to travel at the speed of
light to reach them. This is no doubt a problem, because currently we are not
able to achieve even a tenth of the speed of light, although the agency
supergeniuses already working on it.
Physicist Harold G. White hopes to use speed travel
"warp" (or push warp ) to exceed the speed of light.
Tuesday, July 23, 2013
Why does the universe have fewer dwarf galaxies which should?
Turn and shoot the
Question: "What about the sun?". "He went to sleep," his
mother answered thinking an explanation that satisfies the curiosity of his
three years. "He night," says halfway between the statement and the
question and question again looking at the sky: "What about the moon? In
these sentences, little seems to sum up, with its childlike simplicity-the
concerns, from primitive man to the present day, led mankind to observe the sky
for answers to many questions.
Monday, July 22, 2013
Mars suffered early loss of most of the atmosphere
When I was a young man
with less than 500 million years ago, Mars suffered a catastrophe that hung its
magnetic field, leave it exposed to strong solar winds and caused him to lose
most of its atmosphere. This is the most plausible story for children on the
planet, according to the latest findings of the rover Curiosity.
The conclusion is in
two studies published today in the journal "Science" that reveal with
unprecedented precision the composition of air on Mars.
A study warns that sea level may rise 20 meters by the end of the century
The ice of the
Antarctic "is much more sensitive" to climate changes than estimated,
according to a scientific study which says that sea level could rise 20 meters
to the end of the century if this area, the West Antarctic and Greenland, were
to melt as in the Pliocene.
These are two of the
findings of an international study published in the journal Nature Geo science,
led by researchers from Imperial College London and Spanish participation.
Chemically induced pluripotent stem cells
Scientists have been
able to reprogram the mature human stem cells, using only the chemical compound
(without genetic manipulation).
A new method of
obtaining cells are as versatile as embryonic stem cells, reduces the risk of
developing cancer or of mutations that can occur as a result of stem cell
therapies, "reprogrammed" with the introduction of additional genes.
Since then, in 2006, it
was announced the discovery of induced pluripotent stem cells ( iPSCs ),
scientists have sought to reduce the number of additional genes required for
such cells. But it is always required at least one encoding a protein Oct-4 .
Fourth domain for a new form of life
The famous anecdote
"On board the space station discovered a giant virus that infected Soviet
cosmonaut" may be not so absurd: Biologists have discovered a virus of
such size that they have no right to believe in it.
Initially called it
simply - NLF, a new form of life (New Life Form). Strange body, a dedicated
French microbiologist from sea water samples, pick up off the coast of Chile,
infects the simplest - amoebas. Soon, the same body showed up and in Australia.
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