Here are Words of Quar'n & Hadiths, Quotes & Poetry and Daily Updates in the Field of Education, Science & Technology
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Friday, 24 July 2015
Govt. of the Punjab, Finance Department , Notification of Revision of Basic Pay Scale and Allownces
Govt.
of the Punjab, Finance Department , Notification of Revision of Basic Pay Scale
and Allowances
Thursday, 23 July 2015
Monday, 20 July 2015
Asteroid containing minerals worth billions set to pass close to Earth
Asteroid containing minerals worth billions set to pass close to Earth
A rather valuable asteroid has
passed by Earth over the weekend.
Asteroid UW158 passed by at six
times the distance between Earth and the moon - still relatively close for a
future asteroid mining mission.
So what makes this asteroid so
valuable then?
Well, the body, which is just under
a kilometre in diameter, has a core made out of platinum.
In fact, Forbes reported that the
platinum core is worth roughly five trillion dollars.
Work is already underway to develop
asteroid mining, with private firm Planetary Resources testing technology on
the International Space Station this week.
The company's Arkyd 3 Reflight (A3R)
spacecraft was launched from the ISS's airlock on a 90-day mission.
A3R is a testbed for future
spacecraft that will travel to asteroids, being used to test navigation,
avionics and software.
So
hopefully by the time the next valuable asteroid flies past Earth, we're in a
position to do more than just point it out
Saturday, 18 July 2015
How do mosquitoes find food? First, they smell you, scientists say
How do mosquitoes find food? First, they smell you, scientists say
The
researchers found that mosquitoes rely on a variety of senses to find their
meals in a process they divided into stages: first they pick up a scent, then
they follow a visual cue, and once they are close enough to the target they
sense its body heat. The
scent that alerts mosquitoes to the proximity of a potential target is not that
of blood, but of carbon dioxide, the gas we exhale. Mosquitoes can smell the
gas from as far as 30 feet away, University of Washington researcher and
co-author on the paper Jeff Riffell explained in a news release.
“Carbon dioxide is the best signal for a
warm-blooded animal, and they can sense that from up to 30 feet away – quite a
distance,” Mr. Riffell said. “And then they start using vision and other body
odors to discriminate whether we’re a dog or a deer or a cow or a human. That
may be how they discriminate among potential blood hosts.”
In
the study, mosquitoes were put in a wind tunnel that was plain and empty,
except for a black dot on the floor to serve as a visual stimulus. The
introduction of carbon dioxide into the tunnel triggered the mosquitoes’
instinct to search visually for food, Riffel said. “When
we gave them the odor stimulus, all of the sudden they were attracted to this
black dot,” said Riffell. “It’s almost like the carbon dioxide gas turned on
the visual stimulus for the mosquitoes to go to this black dot.” "The
unfortunate conclusion is that it's very difficult to escape mosquitoes,” he
said.
MOON, VENUS AND JUPITER APPEAR VERY NEAR TO EACH OTHER
MOON, VENUS AND JUPITER APPEAR VERY NEAR TO EACH OTHER
Tomorrow, the Moon, Venus and Jupiter - the second, third and fourth brightest objects of the sky after the sun - will appear to be clustered together. View the sight from any location with a clear view of the west, with as few horizon obstructions as possible.
Look
to the western sky at dusk tomorrow, and you may see three celestial bodies
clustered together in a divine meeting.
The
Moon, Venus and Jupiter - the second, third and fourth brightest objects in the
sky after the Sun, and in reality millions of kilometres apart, will appear to
be almost side by side.
The
crescent Moon will appear as just a small silver sliver, and look as though it
is hanging nearer to Jupiter. Even though Venus is smaller than Jupiter, it is
brighter, due to its closer position to the Sun.
During
that conjunction, the two planets were separated by a distance less than the
diameter of a full moon, with star-gazers able to "block" both Venus
and Jupiter behind their little finger, said the United States' National
Aeronautics and Space Administration.
Venus, the second planet from the Sun, is 77 million km from Earth, and Jupiter, the fifth planet from the Sun and the solar system's largest, is 909 million km away.
While
it is not all that rare for the two planets to get so close to each other, the
viewing angle at many latitudes and the time of day made the conjunction a particularly
spectacular event, which some star-gazers have likened to the biblical "Star of Bethlehem" that
led the magi to baby Jesus.
Many have referred the event as ‘Star of Bethlehem’ that led to the birth of Jesus. As per astronomers, the way planets were arranged were almost same to the way they were 2,000 years ago when the Christ was born.
Thursday, 16 July 2015
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