A scientific weblog for every one
Data from NASA's Mars Reconnaissance Orbiter (MRO) have helped scientists solve a pair of mysteries dating back four decades and provided new information about climate change on the Red Planet.
The argument that the moon is a dry, desolate place no longer holds water.
Secrets the moon has been holding, for perhaps billions of years, are now being revealed to the delight of scientists and space enthusiasts alike.
NASA today opened a new chapter in our understanding of the moon. Preliminary data from the Lunar CRater Observation and Sensing Satellite, or LCROSS, indicates that the mission successfully uncovered water during the Oct. 9, 2009 impacts into the permanently shadowed region of Cabeus cater near the moon’s south pole.
The astronomer ‘Abd al-Rahman ibn ‘Umar al-Sufi, commonly known as al-Sufi, was born in Persia (present-day Iran) in 903 A.D. and died in 986. He worked in Isfahan and in Baghdad, and is known for his translation from Greek into Arabic of the Almagest by the ancient astronomer Ptolemy
Phi ( 
= 1.618033988749895... ), most often pronounced fi like "fly," is simply an irrational number like pi ( p = 3.14159265358979... ), but one with many unusual mathematical properties. Unlike pi, which is a transcendental number, phi is the solution to a quadratic equation.
The ratio, or proportion, determined by Phi (1.618 ...) was known to the Greeks as the "dividing a line in the extreme and mean ratio" and to Renaissance artists as the "Divine Proportion" It is also called the Golden Section, Golden Ratio and the Golden Mean
Just as pi (p) is the ratio of the circumference of a circle to its diameter, phi () is simply the ratio of the line segments that result when a line is divided in one very special and unique way.
the ratio of the length of the entire line (A)
to the length of larger line segment (B)
is the same as
the ratio of the length of the larger line segment (B)
to the length of the smaller line segment (C).
A is 1.618 ... times B and B is 1.618 ... times C.
Alternatively, C is 0.618... of B and B is 0.618... of A.
Phi with an upper case "P" is 1.618 0339 887 ..., while phi with a lower case "p" is 0.6180339887, the reciprocal of Phi and also Phi minus 1.
What makes phi even more unusual is that it can be derived in many ways and shows up in relationships throughout the universe.
GENEVA (Reuters) - Physicists around the world, some in pyjamas and others with champagne, celebrated the first tests on Wednesday of a huge particle-smashing machine they hope will simulate the "Big Bang" that created the universe.
Experiments using the underground Large Hadron Collider, or LHC, the biggest and most complex machine ever made, could revamp modern physics and unlock secrets about the universe and its origins.
Staff in the control room on the border of Switzerland and France clapped as two beams of particles were sent silently first one way and then the other around the LHC's 17-mile (27-km) underground chamber.
"Things can go wrong at any time," said project leader Lyn Evans, who wore jeans and running shoes for the LHC's debut.
"But this morning we had a great start."
It will be weeks or months before two particles ever crash together in the giant tube, and even longer before scientists can interpret results, said Jos Engelen, chief scientific officer of CERN, the European Organization for Nuclear Research.
"Anything between a year and four years, depending on how difficult this new physics is to find," Engelen said.
Pyjama-clad scientists calling themselves "Nerds in Nightshirts" partied at the Fermi National Accelerator Laboratory in Batavia, Illinois as they waited late into the night for the first signals from the 10 billion Swiss franc (5 billion pound) machine. News From REUTERS
What are shooting stars?
Shooting stars are mostly grit from space colliding at very high speed with air molecules high up in the sky.
black hole and our questions
What is a black hole?
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Loosely speaking, a black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull. Since our best theory of gravity at the moment is Einstein's general theory of relativity, we have to delve into some results of this theory to understand black holes in detail, but let's start of slow, by thinking about gravity under fairly simple circumstance.
Eileen Galloway relaxes at home earlier this year. Credit: NASA
When Eilene Galloway was born, the Wright Brothers' historic flight was less than three years
Time and Time Again
The physics world accepts the idea of spacetime, a combined metrical entity which puts time on the same footing as the visible three spatial dimensions. Further spatial dimensions are added in some theories to help assimilate all physical forces into a unified model of reality.
Though NASA officials have said nothing on the subject, astronomy today is on the edge of a critical shift in perception—a revolution that could redefine our view of the heavens.
Proponents of the “Electric Universe” say that a revolution in the sciences is inescapable, and
THE MOON
The moon is Earth's only natural satellite.
The moon is a cold,dry orb whose
surface is studded with craters and strewn with
rocks and dust (called regolith). The moon has no
atmosphere. Recent lunar missions indicate that
there might be some frozen ice at the poles.
The same side of
the moon always
faces the Earth.
The far side of
the moon was first
observed by humans in 1959 when the unmanned
Soviet Luna 3 mission orbited the moon and
photographed it. Neil Armstrong and Buzz Aldrin (on
NASA's Apollo 11 mission, which also included
Michael Collins) were the first people to walk on the
moon, on July 20, 1969.
If you were standing on the moon, the
sky would always appear dark, even
during the daytime. Also, from any spot
on the moon (except on the far side of the moon
where you cannot see the Earth), the Earth would
always be in the same place in the sky; the phase
of the Earth changes and the Earth rotates,
displaying various continents.
Read more about moon in continue…
We'll Start Our Work On this Weblog On 2008/05/18.
All of Weblog Writers Had Trip & they couldn't write any writing.
So, after their travels, we'll work on this activity. please help us...
