Showing posts with label School. Show all posts
Showing posts with label School. Show all posts

Monday, June 20, 2011

Winston Hodge - Winston James Hodge, ACS Independent Singapore


Winston Hodge is ACS (Independent) new principal
Anglo-Chinese School (Independent) has appointed Mr Winston James Hodge as its new principal. The appointment takes effect on Tuesday. A statement from the school said he has 30 years of experience in the education and teaching field.

He had served as principal at Raffles Junior College and St Gabriel's Secondary School, and as a cluster superintendent in the Ministry of Education's headquarters. A Singaporean, Mr Hodge is a Protestant and married with two children.

Mr Hodge said serving as principal of Anglo-Chinese School (Independent) is a rare privilege. He says his immediate task is to learn from and connect with the Anglo-Chinese School family to better understand the hopes and aspirations they have for the school and the students.

Mr Hodge takes over from Dr Ong Teck Chin, who resigned in October last year following a complaint by a male teacher that Dr Ong had acted "inappropriately" towards him. Dr Ong had been principal of the school for 16 years. Read More

Wednesday, June 15, 2011

manyetik yýkama toplarý - ssc results 2011 maharashtra


polytechnic result 2011 manyetik yýkama toplarý jntu anantapur results 2011 çamaþýr yýkama topu fiyatlarý ssc results 2011 maharashtra up polytechnic entrance exam 2011 jeecup pseb 10th result jexpo 2011 guwahati university wbscte indigo airlines gauhati university cpmt 2011 west bengal jexpo 2011 result osmania university degree results 2011 upcpmt upcpmt 2011 chs varanasi bundelkhand university Read More


ニュートリノ, Neutrino, cp対称性の破れ


ニュートリノ“変化の兆候観測”
物質を構成する最も基本的な粒子素粒子の一種「ニュートリノ」が、別の型へ変化する兆候を観測することに成功したと茨城県つくば市の研究グループが発表しました。研究グループは、宇宙の成り立ちを解明する重要な手がかりになるとしています。

観測に成功したのは、茨城県つくば市の高エネルギー加速器研究機構の小林隆教授らの研究グループです。研究グループでは東海村にある実験施設「JーPARC」の加速器という装置を使って、物質を構成する最も基本的な粒子素粒子の一種のニュートリノを大量に発生させました。そして、およそ300キロ離れた岐阜県にある施設「スーパーカミオカンデ」に向けて発射し、どのように変化するか観測する実験を進めてきました。その結果、ニュートリノが3つある型のうち「ミュー型」から「電子型」に変化する兆候を捉えることに成功したということです。「ニュートリノ」については、これまで別の変化のパターンは見つかっていましたが、ミュー型から電子型への変化の兆候が観測されたのは、世界で初めてだということです。研究グループは、宇宙の成り立ちを解明する重要な手がかりになるとしています。小林教授は「宇宙の成り立ちを説明するための素粒子物理学は、日本が世界をリードしてきた分野で、さらに研究を進め発展に貢献していきたい」と話しています。研究グループは、さらに実験を進めることにしていますが、東海村のJーPARCが震災の被害を受けたため、実験の再開は早くてことし12月以降になる見込みだということです。 Read More

Tuesday, June 14, 2011

Lunar Eclipse 2011 - Rare Lunar Eclipse Set to Scintillate Enthusiasts


Nepal will witness one of the darkest and longest total lunar eclipses of the century in the wee hours of Thursday morning.

The total duration of the eclipse, which happens to be the first of the year, will last for a whopping 101 minutes while the moon will be partially eaten up by the earth’s shadow for a longer period. “If the weather does not play foul, the celestial event starting 1:08 am NST will be visible from all parts of the country,” said Jayanta Acharya, the chairman of Astronepal. There is another total lunar eclipse later in the year on December 10.

Also an astronomer with Balmeeki Campus in Kathmandu, Acharya informed that the peek-a-boo between the two heavenly bodies will continue for three hours and 40 minutes with the moon entering the penumbral region of earth’s shadow in the southwestern skies at 00:08 am NST and leaving it at 3:48 am NST.

Though eclipses are but natural phenomenon, this one is rare as the moon will pass through the centre of the earth’s shadow for an unusually longer period, said Rishi Shah, an academician at Nepal Academy of Science and Technology (NAST), adding, “Thereby, making the eclipse one of the darkest.”

During the eclipse, the moon will appear to be colourful. “It may have reddish glow as a small fraction of sunlight gets filtered or refracted from the earth’s atmosphere and manage reach the moon to illuminate it,” Shah said.

The last lunar eclipse to exceed the totality of 100 minutes was in July 2000, according to the US-based National Aeronautics and Space Administration (NASA). The longest total lunar eclipse of the century, which will be five to six minutes longer than this one, will befall on July 26, 2018.

Unlike a solar eclipse, a lunar eclipse can be observed with the bare eyes, and amateur skygazers are preparing to organise star parties in Kathmandu.

In collaboration with the Park Village Resort, Astronepal is set to organise an observation programme at the Resort premises in Budhanilakantha.

Doomsday 2012, a documentary on the myths that the world will end in 2012, will be screened on Wednesday night before the eclipse starts after the day changes. Astronepal has already set up telescopes at the Resort for the observation, according to Acharya.

The entire event will be seen from the eastern half of Africa, the Middle East, central Asia and western Australia, according to NASA. Though Europe will miss the early stages of the eclipse because they occur before moonrise, totality will be seen throughout the continent except a few places. On the other hand, NASA said the eastern Asia, eastern Australia, and New Zealand will miss the last stages of eclipse because they occur after moonset. The eclipse will not be visible from North America. Source

Friday, June 10, 2011

APOSS SSC Results 2011 Published - Andhra Pradesh Open School Society (APOSS)


APOSS SSC Results 2011 has been published by Andhra Pradesh Open School Society (APOSS) today on 10th June 2011 at 3:00 PM. These APOSS SSC Results 2011 were made available on the official website of Andhra Pradesh Open School Society (APOSS) at www.apopenschool.org.

Andhra Pradesh Open School Society (APOSS) SSC Public Exams were held in April/ May 2011 and the APOSS SSC Results 2011 were declared today on friday, where you can get by your hall ticket number. Read More

Wednesday, June 8, 2011

Bijoy Krishna Girls College Admission 2011 India


Bijoy Krishna Girls College, Howrah
The college was founded in 1947 with an opinion to satisfying the gradually enhancing demand for higher education among the girls of the district of Howrah. There is no challenging the fact that the foresight of the Founder-Principal and his enthusiastic friends bore fruit, with the passage of time, in the shape of this largest girls’ college, not merely in India, but also in Asia. The college, financial and other constraints notwithstanding, extends a plethora of facilities and is committed to the task of developing both intellectual and humane acumen in its students — the ultimate aim being to alter them to make significant contribution to the uplift of the society at large.

Courses offered
Combination subject
Economics and Zoology
Bengali Hons
Microbiology
Geography
English & Philosophy
Education & History
Psychology & Political Science
Hindi & Sanskrit
Physics & Mathematics
Human Resource Manager
Computer Science

Address
Bijoy Krishna Girls’ College
A NCTE and NAAC (B ++) accredited College
5/3, Mahatma Gandhi Road,
Howrah-711101

Hooghly Mohsin College Admission 2011 India


Hooghly Mohsin College Admission 2011 Application Forms www.hooghlymohsincollege.org
hooghly mohsin college admission, chandannagar college, chandannagar govt. college, chandannagar government college, Hooghly Mohsin College, The IQAC of Hooghly Mohsin College was established in 2007 as per the recommendation of the National Assesment and Accredition Council (NAAC).

hooghly mohsin college Admission Notification for Various Courses in hooghly mohsin Hooghly Mohsin College began its educational journey in the year 1836 on the 1st of August and it is more than 170 years old. The college is affiliated to University of Burdwan and it is controlled by the West Bengal Government. Read More

Serampore College, Serampore College Admission 2011, Howrah Girls College


Carey devotes 41 years to mission work in India
William Carey, known as the father of modern missions, went to India under the appointment of the Baptist Missionary Society, devoting 41 of his 73 years to India without a return to his homeland. He was an able linguist and translator; a botanist of considerable reputation; and a missionary statesman par excellence. William Carey was born on August 17, 1761, in a village in Northamptonshire, England. He spent his childhood in poverty and became a shoemaker’s apprentice at the age of 14.

Even though he had no formal education, Carey had an avid appetite for books. He was influenced by the biographies of John Eliot and David Brainerd, and the Bible. While working in the cobbler’s shop, Carey was converted to Christianity. He enthusiastically took up the faith, and though little educated, the young convert borrowed a Greek grammar book and proceeded to teach himself New Testament Greek. When his master died, he took up shoemaking, but the cobbler’s life was hard and his pay was insufficient. Carey’s family sunk into poverty and stayed there even after he took over the business.

InApril 1789, Carey was called to the pastorate of Harvey Lane Church at Leicester. Here he was brought into association with men of culture, and books were freely placed at his disposal. During these years he acquired a profound linguistic skill through the study of Hebrew, Latin, Greek, French and Dutch. He supplemented his meager pastoral income by teaching school and making shoes.

Convinced that Jesus’ call to “make disciples of all nations” was still relevant, Carey and his family set sail for India on June 13, landing at Calcutta on November 11, 1793. Here he endured six years of extreme trials.

In October 1799, things finally turned. He was invited to a Danish settlement in Serampore, near Calcutta. He was now under the protection of the Danes, who permitted him to preach legally (in the British-controlled areas of India, all of Carey’s missionary work had been illegal).

He soon mastered numerous Indian languages, labored constantly for the conversion of individuals, and led in establishing 20 churches and mission stations in India by 1814. His linguistic ability gained for him a professorship in the crown college, Fort William, of Calcutta. With William Ward assisting him as printer and Joshua Marshman as educator, Carey and his colleagues spread the word of the gospel in all ways possible.

Carey sought to give the Indian people literary tools and resources that would enable them to evangelize their own country. He led in building a paper mill, setting up a printing press, publishing the first Indian newspaper, as well as the Bible in the language of the people.

From his life’s earnings he contributed to mission work in India, and superintended the translation of the Bible into 42 Oriental tongues, making the Bible accessible to a third of the world. During Carey’s lifetime were printed 212,000 copies of the Scriptures.

Carey and his colleagues established Serampore College in 1818 to train Christian leadership. It still remains today one of the outstanding educational institutions of Asia, offering theological and liberal arts education for some 2,500 students, and is a tribute to its founders. His efforts for social reform led to the passage of laws prohibiting the heathen practice of infanticide, disposing of children for religious or economic motives; and abolishing the sati rite of burning widows on the funeral pyres of their husbands, as well as assisted suicide.

Thousands of great missionaries were impressed not only by Carey’s example, but by his words “Expect great things from God; attempt great things for God.” The history of nineteenth-century Protestant missions is in many ways an extended commentary on the phrase. Carey died in Serampore in 1834, an internationally honored figure. He outlived nearly all who were associated with him in his prolonged residence in India. Read More

Tuesday, June 7, 2011

Circulatory System, Skeletal System


The circulatory system is an organ system that passes nutrients (such as amino acids, electrolytes and lymph), gases, hormones, blood cells, etc. to and from cells in the body to help fight diseases and help stabilize body temperature and pH to maintain homeostasis.

This system may be seen strictly as a blood distribution network, but some consider the circulatory system as composed of the cardiovascular system, which distributes blood,[1] and the lymphatic system,[2] which distributes lymph. While humans, as well as other vertebrates, have a closed cardiovascular system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open cardiovascular system. The most primitive animal phyla lack circulatory systems. The lymphatic system, on the other hand, is an open system.

Two types of fluids move through the circulatory system: blood and lymph. The blood, heart, and blood vessels form the cardiovascular system. The lymph, lymph nodes, and lymph vessels form the lymphatic system. The cardiovascular system and the lymphatic system collectively make up the circulatory system. Read More

Circulatory System - How the Blood Gets Around the Body
The circulatory system is made up of the vessels and the muscles that help and control the flow of the blood around the body. This process is called circulation. The main parts of the system are the heart, arteries, capillaries and veins.

As blood begins to circulate, it leaves the heart from the left ventricle and goes into the aorta. The aorta is the largest artery in the body. The blood leaving the aorta is full of oxygen. This is important for the cells in the brain and the body to do their work. The oxygen rich blood travels throughout the body in its system of arteries into the smallest arterioles.

On its way back to the heart, the blood travels through a system of veins. As it reaches the lungs, the carbon dioxide (a waste product) is removed from the blood and replace with fresh oxygen that we have inhaled through the lungs. Read More

Scientific Method, Branches Of Biology


Biological classification, or scientific classification in biology, is a method by which biologists group and categorize organisms by biological type, such as genus or species. Biological classification is a form of scientific taxonomy.

Modern biological classification has its root in the work of Carolus Linnaeus, who grouped species according to shared physical characteristics. These groupings have since been revised to improve consistency with the Darwinian principle of common descent. Molecular phylogenetics, which uses DNA sequences as data, has driven many recent revisions and is likely to continue to do so. Biological classification belongs to the science of biological systematics.

Definition
Classification has been defined by Mayr as "The arrangement of entities in a hierarchical series of nested classes, in which similar or related classes at one hierarchical level are combined comprehensively into more inclusive classes at the next higher level." A class is defined as "a collection of similar entities", where the similarity consists of the entities having attributes or traits in common.

What makes biological classification different from other classification systems (e.g. classifying books in a library) is evolution: the similarity between organisms placed in the same taxon is not arbitrary, but is instead a result of shared descent from their nearest common ancestor. Accordingly the important attributes or traits for biological classification are those which are 'homologous', i.e. inherited from common ancestors. These must be separated from traits that are analogous. Thus birds and bats both have the power of flight, but this similarity is not used to classify them into a taxon (a "class")], because it is not inherited from a common ancestor. In spite of all the other differences between them, the fact that bats and whales both feed their young on milk is one of the features used to classify both as mammals, since it was inherited from a common ancestor.

Determining whether similarities are homologous or analogous or not can be difficult. Thus until recently, golden moles, found in South Africa, were placed in the same taxon (insectivores) as Northern Hemisphere moles, on the basis of morphological and behavioural similarities. However, molecular analysis has shown that they are not closely related, so that their similarities must be due to convergent evolution and not to shared descent, and so should not be used to place them in the same taxon.  Read More

Monday, June 6, 2011

The Scientific Method : Environment + Energy – Intelligence = Decrease Order


The Scientific Method is a way to investigate the world around us. The following brief explanation of the Scientific Method will serve to give context for the main topic of this blog.

We begin by observing the world around us and perhaps we record these observations. Note: Being careful and precise in making and recording our observations will aide in our quest to understand our world (and the community as a whole will benefit).

We may also speculate on what these observations may mean (hypothesize). And these hypotheses may lead to experiments, which will lead to more observations.

This process may begin very loose and unorganized at first. However, overtime, the serious investigator will become increasingly more formal.

The ability to explain what is being observed through the use of a model, becomes a major accomplishment. One example of this is Newton’s Second Law of Motion, F = ma. This mathematical model explains that, “Force is equal to mass times acceleration”. This model has been a very useful method for us in understanding the world in which we live.

One last comment before moving on to the main topic of this blog. The ability to learn from the past and to build on the work of others, can be one of life’s greatest accomplishments.  Read More

Scientific Method Biology, Chemistry, Technology


Research Question: The research question is the single most important part of the scientific method. Every part of your project is done to answer this question. The research question is sometimes formed as a statement and is called the "Problem" or "Problem Statement."

Hypothesis: The hypothesis is an "educated guess," formed as a statement, that you propose to be the answer to the research question. An educated guess is based on some prior knowledge.

Experimental Design: Plan an experiment in which you can test your hypothesis.

Variables: The experiment will contain an element or elements that do not change (called controlled variables or dependent variables) and elements that will change (called manipulated variables or independent variables).

Control: The control is a particular sample that is treated the same as all the rest of the samples except that it is not exposed to manipulated variables.

Observation: When you interact with your experiment, you are using your senses to observe. Does it have a smell, make a noise have color, etc.?

Collect Data: As you observe your experiment, you will need to record the progress of your experiment. Data can be whatever you observe about your experiment that may or may not change during the time of the experimentation. Examples of data are values in pH, temperature, a measurement of growth, color, distance, etc.

Journal: All scientists keep a record of their observations in some form of a journal. The journal will begin with the date and time the experimentor collects the data. Sometimes data will include environmental values such as humidity, temperature, etc. Entries must be written clearly and with detail of description so that another scientist can read the journal, simulate the conditions of the experiment, and repeat the experiment exactly.

Data: The data are the values written down as the experiment progresses. Examples of data entry on measuring plant growth:

11/15/04 Control Plant 7.4 mm
Test Plant 16.2 mm
Test Plant 24.9 mm
Test Plant 37.2 mm

11/22/04 Control Plant 7.8 mm
Test Plant 15.9 mm
Test Plant 23.2 mm
Test Plant 37.2 mm

Charts & Graphs: When at all possible, illustrations of data are advisable. They create a professional appearance and convey a great deal of information. Examples include: Bar Graph, Pie Chart, X & Y axis Graph, Histogram, etc.  Read More

Uttarakhand 10th Class Results 2011 CBSE, New Delhi, India


Uttarakhand board results 2011 for 10th and 12th class declared
RAMNAGAR (UTTARAKHAND): Uttarakhand School Education Board on Monday declared the results for Class 12th and 10th students. While 75.80 per cent students cleared the board exams of class 12th, 68.14 per cent students were declared pass in class 10th, officials said here.

A total of 3,00,081 students had taken the exams for Uttarakhand board this year.

Nishant Kaushik, a student of Saraswati School of Kashipur topped the 10th class with 94.60 per cent marks, while Neelam Bist of Vivekanand Inter College in Almora was declared topper among girls with 94.40 per cent marks.

In 12th class, Kanchak Kumar Kandpal of Bharti Shahid Sainik Nainital topped the board exams with 95.20 per cent marks, while Ankita Bora of Saraswati Vidya Mandir of Kotdwar remained topper among girls. Read More

Biology, Science, Chemistry, Technology Stocks Cheapest Since 1998 Amid IPO Bubble Fear


Technology Stocks Cheapest Since 1998 Amid IPO Bubble Fear
The five-week drop in U.S. stocks has driven technology company valuations to the lowest level in more than a decade, making them too cheap to pass up for some of the nation’s biggest money managers.

The largest group in the benchmark gauge for American equities lost 7 percent, or about $190 billion in value, since the market peaked on Feb. 18, falling more than any industry outside financials. Computer stocks trade for 9.3 times reported earnings before interest, taxes, depreciation and amortization, 1.3 times the index’s multiple, data compiled by Bloomberg show. The ratio is the smallest since at least 1998.

While signs of a slowing recovery and the initial public offering of LinkedIn Corp. have spurred concern the industry has entered a speculative bubble, the numbers show something different. Profits will rise 35 percent faster than the Standard & Poor’s 500 Index in 2011, and executives are boosting computer and software spending, data from Bank of America Corp. and Bloomberg show.

“We see the best supply-demand trend in technology,” said Michael Sansoterra, a money manager at RidgeWorth Capital Management in Atlanta, which oversees $48.5 billion including Broadcom Corp. and Google Inc. shares. “You can measure it pretty much every way you want and it looks attractive.” Read More

Biology, Science, Chemistry, Technology, Flat animals and biology's age of discovery


Darwin is the obvious example, but imagine being Wallace and finding flying frogs and searching for birds that were said to spend their whole lives on the wing and, so, have no feet. Or being with Banks and Solander as they arrived in New Zealand and discovered an entirely new flora to describe, catalogue and learn from.

It would be pretty great to live in those times, but I wouldn't swap places for the world - biology's age of discovery is still going strong. There are probably ten times as many species on earth as we know about. In the last couple of months we've heard news of new fish species discovered in the kermadecs, a nematode that survives a mile below earth's surface, bioluminescent fungi, and an antelope species discovered in a meat market. Then there's biodiversity's dark matter; whole groups of creatures we know must exist, but have no clue as to their biology. Recently DNA sequences have revealed a new group of fungi discovered in a pond in Devon, and maybe, just maybe, a whole new branch of life in a set of DNA sequences that are similar to each other but like nothing else we know. In the 21st century there is no lack of species for us to discover, and, in fact, modern tools mean we don't have to get on boat to discover them. You're average shovel load of soil almost certainly has bacteria and fungi that aren't known to science.

Sunday spinelessness has, rather arbitrarily, limited itself to animals (I am from a zoology department, these things rub off) - and one of my favourite examples of how little we really know about biology comes from some very strange animals. Meet a placozoan (literally 'flat animal'):  Read More

Biology, Science, Chemistry, Technology,Quantum Enganglement, Quantum Biology, and a Hunch About the Human Condition


Quantum Enganglement, Quantum Biology, and a Hunch About the Human Condition
What is quantum entanglement? Nobody this side of Heaven really knows. In one of his more memorable quotes, Einstein called it "spooky action at a distance". For those who are unfamiliar with quantum entanglement, it was first theorized by Einstein and two other scientists, and the term 'entanglement' was first coined by Erwin Schrödinger in his famous "Schrödinger's cat" thought experiment.

What quantum entanglement means, to greatly simplify the matter, is that if two particles are entangled, if you observe the state of one particle, then the other particle will be in the same state... except that as soon as one particle is observed in any way, the other particle is automatically disentangled and is forced to take on its own state. If that makes no sense to you, well, you're not alone. Physicists can describe what is happening, but none know why it is happening.

I first began reading up on quantum entanglement for a short story I was writing about four years ago... and I found out that research had by then shown that not only quantum particles could be entangled, but such entanglement could be found between complex particles such as atoms and even molecules at significant distances... and apparently, even across discrete periods of time.

I realized then that if complex molecules - which can be a billion times or more larger than elementary particles like quarks - can be entangled in the same manner as quarks then there should be no reason that entanglement would not affect our very bodies, and even be seen or felt by our consciousnesses!

For instance, we've all heard of "sympathy pains", which are called "Couvade syndrome" by the scientific community. Symptoms experienced by the partner can include:

stomach pain, indigestion, changes in appetite, weight gain, diarrhea, constipation, headache, toothache, cravings, nausea, breast augmentation, hardening of the nipple and insomnia. In some extreme cases, fathers can grow a belly similar to a 7-month pregnant woman and gain approximately 25 to 30 pounds.

Could this be an example of entanglement on the macro level? Perhaps, but that's not the only possible example. We've probably all heard of instances where a woman suddenly 'knew' when something bad happened to her child or her husband, or of identical twins who were raised apart but led almost identical lives. Just today came the news of two identical 92 year-old twins who died within hours of each other...both by heart failure.  Read More

Physics - Shuttle Endeavour launches one last time


The US space shuttle Endeavour has launched on its final mission. Its thunderous rise into a bright morning sky over the Kennedy Space Center in Florida was watched by hundreds of thousands of spectators.

Among them was Endeavour commander Mark Kelly's wife, Gabrielle Giffords, the Arizona politician shot in the head by a gunman in January. Doctors were satisfied enough with her recovery to allow her to travel to Kennedy to see her husband's departure.

"This mission represents the power of teamwork, commitment and exploration," the commander said in a radio call to launch controllers moments before lift-off. "It is in the DNA of our great country to reach for the stars and explore. We must not stop." Endeavour cleared the pad just after 0856 local time (1256 GMT; 1356 BST). It is now on a path to rendezvous with the International Space Station (ISS) on Wednesday.

The ship will deliver a $2bn particle physics experiment, known as the Alpha Magnetic Spectrometer (AMS), and a tray of critical spare parts. On Endeavour's return, the only active ship left in the US space agency's (Nasa) shuttle fleet will be Atlantis. It should undertake its final mission sometime in in July.  Read More

Physics - Astronomers discover 10 more free-floating planets in the milky way


Astronomers have found a clutch of planets that wander alone through interstellar space. The discovery of the objects, which do not orbit any star, will help scientists better understand how planetary systems form and evolve. The 10 free-floating planets are thousands of light years in the direction of the central bulge of the Milky Way, towards the constellation of Sagittarius. Their masses and compositions are thought to be equivalent to Jupiter and Saturn - mainly hydrogen and helium with trace amounts of heavier elements.

"We expect that they were formed around stars and then, during the later stages of planet formation, they get ejected, primarily due to interactions with other planets," said Daniel Bennett, an astronomer at the University of Notre Dame. His team's results were published on Wednesday in Nature.

More than 500 exoplanets have been detected in just over a decade of hunting by scientists and the vast majority of these are gravitationally bound to a star, orbiting it in the way the planets in the solar system orbit the Sun. Free-floating planets have been reported before but only in regions of space where stars are already forming.

The latest discovery shows that free-floating planets exist in large numbers in the emptiest parts of space, with no stars within a distance at least 10 times that between the Sun and the Earth. Bennett estimated that there are around 1.8 times as many of these free-floating Jupiter-sized giant planets as there are stars in the galaxy. "That's a bit more than people had expected," he said.

"Our survey is like a population census – we sampled a portion of the galaxy and, based on these data, can estimate overall numbers in the galaxy," said Bennett. "The survey is not sensitive to planets less massive than Jupiter and Saturn, but theories suggest that lower-mass planets like Earth should be ejected from their stars more often and are thus more common that free-floating Jupiters."  Read More

Physics - Moon's interior water casts doubt on formation theory


The analysis, reported in Science, has looked at pockets of volcanic material locked within tiny glass beads. It found 100 times more water in the beads than has been measured before, and suggests that the Moon once held a Caribbean Sea-sized volume of water.

The find also casts doubt on aspects of theories of how the Moon first formed. A series of studies in recent years has only served to increase the amount of water thought to be on the Moon. The predominant theory holds that much of the water seen on the lunar surface arrived via impacts by icy comets or watery meteorites.

But this recent find is shedding light on how much water is contained in the Moon's interior, which in turn gives hints as to how - and from what - it formed.

In 2008, a team of researchers from the Carnegie Institution and Brown and Case Western Reserve universities analysed the water content found in samples of lunar magma returned by Apollo missions. They wrote in a Nature paper that the samples contained about 10 times more water than they expected. Read More

Physics - Quantum mechanics rule 'bent' in classic experiment


Researchers have bent one of the most basic rules of quantum mechanics, a counterintuitive branch of physics that deals with atomic-scale interactions. Its "complementarity" rule asserts that it is impossible to observe light behaving as both a wave and a particle, though it is strictly both.

In an experiment reported in Science, researchers have now done exactly that. They say the feat "pulls back the veil" on quantum reality in a way that was thought to be prohibited by theory.

Quantum mechanics has spawned and continues to fuel spirited debates about the nature of what we can see and measure, and what nature keeps hidden - debates that often straddle the divide between the physical and the philosophical.

For instance, a well-known rule called the Heisenberg uncertainty principle maintains that for some pairs of measurements, high precision in one necessarily reduces the precision that can be achieved in the other. One embodiment of this idea lies in a "two-slit interferometer", in which light can pass through one of two slits and is viewed on a screen.

Let a number of the units of light called photons through the slits, and an interference pattern develops, like waves overlapping in a pond. However, keeping a close eye on which photons went through which slits - what may be termed a "strong measurement" - destroys the pattern.  Read More