When you speak, sound energy spreads in the air around you and reaches your cochlea through your external ear by air conduction. Sound also travels from your vocal cords and other structures directly to the cochlea, but the mechanical properties of your head enhance its deeper, lower-frequency vibrations. The voice you hear when you speak is the combination of sound carried along both paths. When you listen to a recording of yourself speaking, the bone-conducted pathway that you consider part of your “normal” voice is eliminated, and you hear only the air-conducted component in unfamiliar isolation. You can experience the reverse effect by putting in earplugs so you hear only bone-conducted vibrations.
Some people have abnormalities of the inner ear that enhance their sensitivity to this component so much that the sound of their own breathing becomes overwhelming, and they may even hear their eyeballs moving in their sockets.
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Sunday, 28 December 2008
Voice sounds different when recorded and played back
Saturday, 27 December 2008
Website Designing Tips
Copywriting and Usability Tips
With due apologies and full credits to dosh dosh dot com
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Thursday, 25 December 2008
Merry Christmas !
Saturday, 6 December 2008
Hindus not at fault
Is there such a thing as 'Hindu terrorism', as the arrest of Sadhvi Pragya Singh Thakur for the recent Malegaon blasts may tend to prove? Well, I guess I was asked to write this column because I am one of that rare breed of foreign correspondents—a lover of Hindus! A born Frenchman, Catholic-educated and non-Hindu, I do hope I'll be given some credit for my opinions, which are not the product of my parents' ideas, my education or my atavism, but garnered from 25 years of reporting in South Asia (for Le Journal de Geneve and Le Figaro).
In the early 1980s, when I started freelancing in south India, doing photo features on kalaripayattu, the Ayyappa festival, or the Ayyanars, I slowly realised that the genius of this country lies in its Hindu ethos, in the true spirituality behind Hinduism. The average Hindu you meet in a million villages possesses this simple, innate spirituality and accepts your diversity, whether you are Christian or Muslim, Jain or Arab, French or Chinese. It is this Hinduness that makes the Indian Christian different from, say, a French Christian, or the Indian Muslim unlike a Saudi Muslim. I also learnt that Hindus not only believed that the divine could manifest itself at different times, under different names, using different scriptures (not to mention the wonderful avatar concept, the perfect answer to 21st century religious strife) but that they had also given refuge to persecuted minorities from across the world—Syrian Christians, Parsis, Jews, Armenians, and today, Tibetans. In 3,500 years of existence, Hindus have never militarily invaded another country, never tried to impose their religion on others by force or induced conversions.
You cannot find anybody less fundamentalist than a Hindu in the world and it saddens me when I see the Indian and western press equating terrorist groups like SIMI, which blow up innocent civilians, with ordinary, angry Hindus who burn churches without killing anybody. We know also that most of these communal incidents often involve persons from the same groups—often Dalits and tribals—some of who have converted to Christianity and others not.
However reprehensible the destruction of Babri Masjid, no Muslim was killed in the process; compare this to the 'vengeance' bombings of 1993 in Bombay, which wiped out hundreds of innocents, mostly Hindus. Yet the Babri Masjid destruction is often described by journalists as the more horrible act of the two. We also remember how Sharad Pawar, when he was chief minister of Maharashtra in 1993, lied about a bomb that was supposed to have gone off in a Muslim locality of Bombay.
I have never been politically correct, but have always written what I have discovered while reporting. Let me then be straightforward about this so-called Hindu terror. Hindus, since the first Arab invasions, have been at the receiving end of terrorism, whether it was by Timur, who killed 1,00,000 Hindus in a single day in 1399, or by the Portuguese Inquisition which crucified Brahmins in Goa. Today, Hindus are still being targeted: there were one million Hindus in the Kashmir valley in 1900; only a few hundred remain, the rest having fled in terror. Blasts after blasts have killed hundreds of innocent Hindus all over India in the last four years. Hindus, the overwhelming majority community of this country, are being made fun of, are despised, are deprived of the most basic facilities for one of their most sacred pilgrimages in Amarnath while their government heavily sponsors the Haj. They see their brothers and sisters converted to Christianity through inducements and financial traps, see a harmless 84-year-old swami and a sadhvi brutally murdered. Their gods are blasphemed.
So sometimes, enough is enough.At some point, after years or even centuries of submitting like sheep to slaughter, Hindus—whom the Mahatma once gently called cowards—erupt in uncontrolled fury. And it hurts badly. It happened in Gujarat. It happened in Jammu, then in Kandhamal, Mangalore, and Malegaon. It may happen again elsewhere. What should be understood is that this is a spontaneous revolution on the ground, by ordinary Hindus, without any planning from the political leadership. Therefore, the BJP, instead of acting embarrassed, should not disown those who choose other means to let their anguished voices be heard.
There are about a billion Hindus, one in every six persons on this planet. They form one of the most successful, law-abiding and integrated communities in the world today. Can you call them terrorists?
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Bad Show by Media in Mumbai Terrorist Attacks
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Tuesday, 18 November 2008
Phishing
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Tuesday, 11 November 2008
Meditation Technique
Inhale slowly, counting to eight. Hold the breath for the same eight counts while concentrating your attention at the point between the eyebrows. Now exhale slowly to the same count of eight. Repeat three to six times.
After inhaling and exhaling completely, as the next breath comes in, mentally say Hong (rhymes with song). Then, as you exhale, mentally say Sau (rhymes with saw). Hong-Sau means "I am He" or "I am Spirit". Make no attempt to control your breathing, just let its flow be completely natural. Try to feel that your breath itself is silently making the sounds of Hong and Sau. Initially try to feel the breath at the point where it enters the nostrils.
Be as attentive as possible. If you have difficulty feeling the breath, you can concentrate for awhile on the breathing process itself, feeling your diaphragm and chest expanding and contracting.
Gradually as you become more calm, try to feel the breath higher and higher in the nose. Be sure that your gaze is kept steady at the point between the eyebrows throughout your practice. Don't allow your eyes to follow the movement of the breath. If you find that your mind has wandered, simply bring it back to an awareness of the breath and the mantra.
As you become calmer, be more aware of the breath itself, higher and higher in the nose. Be sure to keep your gaze steady at the point between the eyebrows throughout your practice. Don't allow your eyes to follow the movement of the breath. If you find that your mind has wandered, simply bring it back to an awareness of the breath and the mantra.
By concentration on the breath, the breath actually diminishes; its gradual refinement leads naturally to an interiorized meditative state.
Practice this technique as long as you feel to. As a boy, Paramhansa Yogananda used to practice it for hours at a time, withdrawing ever more deeply into the spine until he found himself without breath altogether. He had ascended into soul-consciousness . . . and a higher reality took over…
How Long to Practice. The amount of time you practice is entirely up to you, but end your practice of the technique by taking a deep breath, and exhaling 3 times. Then, keeping your mind focused and your energy completely internalized, try to feel peace, love and joy within your self. Sit for at least 5 minutes enjoying the deeply relaxed state you are in.
Where to Meditate. If possible, set aside an area that is used only to meditate. This will create a meditative mood. A small room or closet is ideal as long as it can be well ventilated. Your area can be kept very simple-all you really need is a chair or small cushion to sit on.
Posture for Meditation. There are many ways of sitting that are equally good. You can sit either in a straight-backed chair or on the floor in any of several poses. Two things, however, are essential: Your spine must be straight, and you must be able to relax completely.
Eye Position. Focus your attention at the point between the eyebrows. This area, called "the spiritual eye", is a center of great spiritual energy. Your eyes should be closed and held steady, and looking slightly upwards, as if looking at a point about an arm's length away and level with the top of your head.
----- With due apologies and full credits to Ananda! And HIM !
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Saturday, 1 November 2008
Optical Illusion
Optical illusions may fool the brain because it is trying to predict the future.
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Cell Phones effect Sleep
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Sunday, 19 October 2008
Swiss Bank Account - 7 myths
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Tuesday, 14 October 2008
Magnetic Poles of Earth
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Monday, 13 October 2008
Does Blogging Pay ?
Think again. For it pays. Do not expect a blog to pay you like a stock in the share market jumping 10-20 per cent the next day. This is a place where it requires sincere dedication of writing out articles on topics that you love. It takes time and efforts to get to a level where you can get paid.
Who pays ? There are lot may who do ! Google adsense for one pays. It has been over an year now and we have been able to generate some revenue slowly out of the blog. Not worth mentioning compared to the time it took to reach that figure but yes, slowly with time you can start earning.
And just in case you need some tips, feel free to get in touch. Lastly we would sincerely thank you, the reader of this blog, for your efforts are what got us that payment. Cheers !
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A hilarious Video - Life Computerized !
Some video that we had accidently located on the internet. We would not claim it to be ours. We are not concerned as to what it is trying to advertise but look at the hilarious content. What it ..... what if we spend 24 hours out of 24 hours on the computer? We certainly need to mend our ways to go towards our nature and not nurture the key board and mouse of the computer. A very small video worth watching.
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Friday, 10 October 2008
Thursday, 9 October 2008
The Top 25 - Sports Related Personalities
S.No. Name Information 1 Joseph Blatter President, FIFA 2 Jacques Rogge President, International Olympic Committee 3 Bernie Ecclestone CEO and President, Formula One 4 Herbert Hainer CEO, Adidas 5 David Beckham Soccer midfielder, Los Angeles Galaxy 6 Roman Abramovich Owner, Chelsea Football Club 7 Cristiano Ronaldo Soccer right/left winger, Manchester United 8 Michel Platini President, Union of European Football Associations 9 Roger Federer Tennis champ 10 Haruyuki Takahashi Senior Managing Director, Dentsu 11 Silvio Berlusconi President, A.C. Milan 12 Lewis Hamilton Formula One racer 13 Luca DiMontezemolo President, Ferrari 14 Ramon Calderon President, Real Madrid 15 Michael Schumacher Retired Formula One racer 16 Yao Ming Center, Houston Rockets 17 Gilbert Felli Executive Director, Olympic Games 18 Dietrich Mateschitz Co-owner, Red Bull racing teams 19 Lalit Modi Chairman and Commissioner, Indian Premier League 20 Richard Scudamore CEO, F.A. Premier League 21 Ron Dennis Principal, Vodafone McLaren Mercedes 22 Timo Lumme Director, TV and marketing services, International Olympic Committee 23 Sachin Tendulkar Indian cricketer, Captain of Mumbai Indians team 24 Jose Mourinho Manager, Inter Milan 25 Maria Sharapova Tennis star
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Monday, 6 October 2008
Dubai planning a Taller Tower
That's about two-thirds of a mile or the height of more than three of New York's Chrysler Buildings stacked end-to-end.
Babel had nothing on this place.
"This is unbelievably groundbreaking design," Chief Executive Chris O'Donnell said during a briefing at the company's sales center, not far from the proposed site. "This still takes my breath away."
The tower, which will take more than a decade to complete, will be the centerpiece of a sprawling development state-owned builder Nakheel plans to create in the rapidly growing "New Dubai" section of the city. Foundation work has already begun, O'Donnell said.
The area is located between two of the city's artificial palm-shaped islands, which Nakheel also built. The project will include a manmade inland harbor and 40 additional towers up to 90 floors high.
About 150 elevators will carry employees and workers to the Nakheel Tower's more than 200 floors, the company said. The building will be composed of four separate towers joined at various levels and centered on an open atrium.
"It does show a lot of confidence in this environment" of worldwide credit problems and a souring global economy, said Marios Maratheftis, Standard Chartered Bank's Dubai-based regional head of research.
As part of government-run conglomerate Dubai World, Nakheel has played a major role in creating modern-day Dubai, a city that has blossomed from a tiny Persian Gulf fishing and pearling village into a major business and tourism hub in a matter of decades.
Besides the growing archipelago of man-made islands for which it is best known, Nakheel is responsible for a number of the city's malls, hotels and hundreds of apartment buildings.
The company said the new project is inspired by Islamic design and draws inspiration from sites such as the Alhambra in Spain and the harbor of Alexandria in Egypt.
"This is nothing like it in Dubai," said Sultan Ahmed bin Sulayem, Nakheel's chairman.
Perhaps not quite. But Dubai is already home to the world's tallest building, even if it remains unfinished.
That skyscraper, the Burj Dubai, or Dubai Tower in Arabic, is being built by Nakheel's chief competitor, Emaar Properties.
Emaar has kept the final height of the silvery steel-and-glass tower a closely guarded secret, saying only that it stood at a "new record height" of 2,257 feet at the start of last month. It's due to be finished next September.
The final height of Nakheel's proposed tower is likewise a secret, as is the price tag. The company would only say it will be more than a kilometer (3,281 feet) tall.
O'Donnell said he was confident that Nakheel could pay for the project despite the financial troubles roiling the world's economy.
He also brushed aside concerns by some analysts that Dubai's property market is becoming overheated and due for a potentially sharp correction.
"In Dubai, demand outstrips supply," he said. "There might be a slowdown, but there definitely won't be a crash."
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Naughty Britishers abroad
Experts have warned that risky sex among Brit's youth has driven the numbers of STIs to new highs in the UK.
The overall total of STIs last year was six per cent higher than in 2006, according to the Health Protection Agency.
Of 380,000 newly diagnosed cases, 200,000 related to people aged 16 to 24.
This age group accounted for two-thirds of all chlamydia cases, 55 per cent of all genital warts and half of all gonorrhoea sufferers.
A study found that 40 per cent of young women do not carry or use condoms when they go abroad.
"If someone looks well groomed and desirable, it's assumed they're OK," The Sun quoted GP Dr Carol Cooper, as saying.
"But the danger is that many STIs are symptomless. Many young people also don't seem to be aware that they can get STIs without full sex.
"Drunken fumbles that result in genital contact can lead to infection too," she added.
Professor Peter Borriello, director of the HPA's centre for infections, said casual sex is now seen as "part of life" for young people.
And he added: "SHAG now stands for Syphilis, Herpes, Anal warts and Gonorrhoea.
"A casual shag is part of the territory, but if you're going to go diving into the pool, make sure you know how to swim - i.e. use a condom."
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Ig Nobel Awards
In 1980s, when researcher Deborah Anderson of Harvard Medical School's birth- control laboratory discovered that "Coca Cola douches" were being used as a type of contraception at the all-girl Catholic boarding school she had attended in Puerto Rico, she decided to test it.
For the study, Anderson, medical student Sharee Umpierre and gynaecologist, Joe Hill mixed four different types of Coke with sperm in test tubes.
A minute later, they found that all sperm were dead in the Diet Coke, however, 41pct were still swimming in the just-introduced New Coke.
"Coca-Cola douches had become a part of contraceptive folklore during the 1950s and 1960s, when other birth-control methods were hard to come by," New Scientist quoted Anderson, as saying.
"It was believed that the carbonic acid in Coke killed sperm, and the method came with its own 'shake and shoot applicator'" - the classic Coke bottle," she added.
Another study, led by University of New Mexico psychologists proposing that lap dancers earn more money when they are at peak fertility also won the award.
During the research, psychologists Geoffrey Miller, Joshua Tybur and Brent Jordan asked women working as lap dancers to report their nightly tips, and whether they were on hormonal contraceptives or menstruating naturally.
The two groups of women received similar tips when they were in non-fertile parts of their cycle, but when the naturally menstruating women reached their fertile days, the researchers found, they earned significantly more.
A Brazilian study led by Astolfo Araujo of the University of Sao Paulo and Jose Marcelino of Sao Paolo's Department of Historical Heritage on armadillos, the burrowing animals, which showed that the pesky creatures can move the artifacts in archaeological dig sites up, down and even laterally by several meters as they dig also won the prestigious alternative prize.
Another experiment with huge implications for health policy won the Ig Nobel medicine prize for Dan Ariely of Duke University in North Carolina.
He gave two groups of volunteers identical placebos masquerading as painkillers, telling one group the pills cost 2.50 dollars each and the other that the pills had been discounted to 10 cents each.
The volunteers didn't pay for the pills, but those who took the "more costly" fake medicine felt less pain from electric shocks than those who took the cheap fakes
This showed that price affects people's expectations and thus their response to medicine, Ariely says - the more expensive the pill, the more relief they expect.
These awards, presented at Harvard University, are organised by the humorous scientific journal the Annals of Improbable Research for research achievements "that make people laugh - then think".
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Wednesday, 1 October 2008
Tackling Hot Laptops
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Sunday, 28 September 2008
USA Bailout Package - Just a joke
"Good morning, sir. Welcome to Bank Till of America. How can I help you?" "I need some money." "OK, for what purposes?" "My family has gotten behind in our bills -- no mismanagement, you understand, but just some hard times. You see, my wife just got laid off, two of our three children had unexpected illnesses that weren't fully covered by our health insurance. Gas and food prices are escalating, and it's getting harder for us to make our mortgage payments. We're not extravagant, mind you, but we do need some help." "So are you asking for a loan, sir?" "We need a bailout, ma'am." "I'm sorry, eh, as I look at your information, Mr. Cue -- Jonathan Cue, is it? -- but based on your resources, we're not able to give you a loan." "Ma'am, I don't want a loan, I want a bailout." "I'm sorry, sir, but I don't understand." "A bailout. I want the same deal you gave to those people in the news, that Fannie Mae woman, that Freddie Mac fellow, the Bear Stearns dude and the Notorious AIG." "Sir, those are mortgage lending giants, banks and insurance companies, and the bailout given to them was essential to the American economy." "I understand. And the bailout I want you to give me is essential to my family's economy." "Sir, but without the assistance we give to them, the ramifications would be disastrous for Wall Street and the Fortune 500 companies." "Ma'am, without the assistance I need you to give me, the ramifications would be disastrous to Main Street, Elm Street, Guadalupe Street as well as to the unfortunate millions I keep company with." "I'm sorry, sir, we can't help you." "But you helped them." "That's different." "Why?" "Because you weren't irresponsible with billions of dollars and they were irresponsible with billions of dollars; therefore, we must give them billions of dollars more." "Huh?" "I know it makes no sense, but that's high finance for you." "OK, ma'am, I was trying to be reasonable but since that won't work, I'm through asking for a bailout." "Good." "Just give me my money, no questions asked." "Sir?" "My money. The cash you're using to help Fannie, Freddie and all the other Capitalism Is Great When I'm Making Billions But Socialist Is Greater When I'm Losing Billions folk. That's my money, right?" "Yes, but ..." "I read where this $700 billion bailout is going to cost every American about $2,300. Is that right?" "Yes, but ..." "And about $6,000 per household, right?" "Yes, but ..." "And the national debt costs each American about $30,000 and each taxpayer about $67,000 right." "Yes, but ..." "Me and my wife are due $134,000 on the national debt, $6,000 on the bailout. Just give us $140,000 right now and we'll call it even." "Sir, I'm sorry. That's just not possible." "So you're not going to do for me what you did for Fannie Mae?" "No, sir." ""What if my mother's name is Annie Mae?" "No, sir." "What if I sing the Bee Gees' 'Fanny Be Tender (With My Love)?' " "No, sir." "And you're not going to give me the same deal you gave Freddie Mac?" "No, sir." "What if I did a Bernie Mac impersonation? God bless his soul." "No, sir." "What if I hummed the theme song from Fred MacMurray's 'My Three Sons?' " "No, sir." "Well, will you do me one favor?" "What's that sir?" "Next time you use my money for a bailout or to raise the debt, money that I never saw and didn't know I had, could you at least let me hold it for a couple of hours?"
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Sunday, 21 September 2008
Top Fifty Employers
----- With due apologies and full credits to Business Week
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Friday, 19 September 2008
Monday, 15 September 2008
Wi-Fi Security
Are you using Wi-Fi for internet access from home or office? If so then surely you must be adequately secured by having proper password protection for your wireless network.
If you as a Wi-Fi user fail to use the password for accessing the internet then you are causing yourself to be vulnerable to all kinds of criminal activities by some unscrupulous person amongst those who are in your immediate vicinity by piggybacking on your wireless network without your knowledge.
It has been found from a survey that there are many amongst us who either do not wish to use a password each time they access the internet using their Wi-Fi system or do not have one that adequately secure them from attacks by hackers who love to piggy back on others.
A good number of Wi-Fi users are there who use others wireless network by piggybacking on them to download large files or adult content without the actual owners being aware of them.
By not using a proper password for your wireless network at home or while travelling could allow criminals with malafide intention to use your wireless network for some nefarious activities such as terrorism which could land you in serious trouble.
So to avoid swimming in the hot soup its better you remain well protected and do not take things for granted with the illusion of being in the confines of a closed room with not a soul to accompany you.
You might not know that your neighbor some 200 meters from where you are is actually snooping on you and could even steal your credit card password or that of your bank account during transaction.
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Thursday, 11 September 2008
Tribute to 9/11 victims
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Wednesday, 10 September 2008
The Big Bang Theory testing machine starts
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Tuesday, 9 September 2008
John McCain noses ahead of Barack Obama ?
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Sunday, 7 September 2008
LHC - Large Hadron Collider
The LHC (Large Hadron Collider) is an international project, in which the UK has a leading role. This site includes the latest news from the project, accessible explanations of how the LHC works, how it is funded, who works there and what benefits it brings us. You can access a wide range of resources for the public, journalists and teachers and students, there are also many links to other sources of information. How did our universe come to be the way it is? The Universe started with a Big Bang – but we don’t fully understand how or why it developed the way it did. The LHC will let us see how matter behaved a tiny fraction of a second after the Big Bang. Researchers have some ideas of what to expect – but also expect the unexpected! The LHC is exactly what its name suggests - a large collider of hadrons. Strictly, LHC refers to the collider; a machine that deserves to be labelled ‘large’, it not only weighs more than 38,000 tonnes, but runs for 27km (16.5m) in a circular tunnel 100 metres beneath the Swiss/French border at Geneva. However, the collider is only one of three essential parts of the LHC project. The other two are: The LHC’s 27km loop in a sense encircles the globe, because the LHC project is supported by an enormous international community of scientists and engineers. Working in multinational teams, at CERN and around the world, they are building and testing LHC equipment and software, participating in experiments and analysing data. The UK has a major role in leading the project and has scientists and engineers working on all the main experiments. The LHC will allow scientists to probe deeper into the heart of matter and further back in time than has been possible using previous colliders. Researchers think that the Universe originated in the Big Bang (an unimaginably violent explosion) and since then the Universe has been cooling down and becoming less energetic. Very early in the cooling process the matter and forces that make up our world ‘condensed’ out of this ball of energy. The LHC will produce tiny patches of very high energy by colliding together atomic particles that are travelling at very high speed. The more energy produced in the collisions the further back we can look towards the very high energies that existed early in the evolution of the Universe. Collisions in the LHC will have up to 7x the energy of those produced in previous machines; recreating energies and conditions that existed billionths of a second after the start of the Big Bang. The results from the LHC are not completely predictable as the experiments are testing ideas that are at the frontiers of our knowledge and understanding. Researchers expect to confirm predictions made on the basis of what we know from previous experiments and theories. However, part of the excitement of the LHC project is that it may uncover new facts about matter and the origins of the Universe. One of the most interesting theories the LHC will test was put forward by the UK physicist Professor Peter Higgs and others. The different types of fundamental particle that make up matter have very different masses, while the particles that make up light (photons) have no mass at all. Peter’s theory is one explanation of why this is so and the LHC will allow us to test the theory. More of the Big Questions about the universe that the LHC may help us answer can be found here. Latest News from the LHC The 10th September 2008 is LHCstart up date . Everything is now ready for the first injection of proton beams into the LHC on the 10th September 2008. This major milestone in the LHC project will be covered live by international broadcasters. UK media organisations will be at CERN and at a simultaneous media event in London. CERN will webcast the startup (the link is on the CERN "first beam" page). BBC Radio 4 will devote a day of programming to the LHC, including covering first injection of beams live on the Today programme. See the BBC website for programming, background etc. In the weeks preceeding the start up, this web page and the CERN and STFCwebsites will carry information on the plans for coverage of the event. Press Release announcing start up date. Dr Tara Shears talks about some of the scientific questions that the LHC project will help us answer, on the www.labreporter.com website. You can try your hand at running the LHC and interpreting collisions on oursimulator at www.particledetectives.net. Proton beams have already been injected into the first metres of the LHC, to test the injection process, but the first attempt to circulate beams all the way around the LHC will be on the official start up day. If everything proceeds according to plan the beam will circulate all the way around the 27 km long LHC. Over the following months the LHC scientists and engineers will commission the LHC, running beams at higher energy with the intention of beginning collisions, using relatively low energy (5TeV) beams, towards the end of 2008. The extensive preparations for the start of LHC experiments have included exhaustive safety assessments, including the potential risk of creating new particles, black holes etc. The latest risk assessment is available here. I have heard that the LHC will recreate the Big Bang, does that mean it might create another Universe and if so what will happen to our Universe? People sometimes refer to recreating the Big Bang, but this is misleading. What they actually mean is: No Big Bang – so no possibility of creating a new Universe. How much does the LHC cost and who pays? The direct total LHC project cost is £2.6bn, made up of: The total cost is shared mainly by CERN's 20 Member States, with significant contributions from the six observer nations. UK’s direct contribution to the LHC is £34m per year, or less than the cost of a pint of beer per adult in the UK per year: The UK pays £70m per year as our annual subscription to CERN. The LHC project involves 111 nations in designing, building and testing equipment and software, participating in experiments and analysing data. The degree of involvement varies between countries, with some able to contribute more financial and human resource than others. The title CERN is actually an historical remnant. It comes from the name of the council that was founded to establish a European organisation for world-class physics research. The Council was dissolved once the new organisation (the European Organization for Nuclear Research) was formed, but the name CERN remained. Why is the LHC underground? Is it because it is doing secret experiments that scientists want to hide away? The LHC has been built in a tunnel originally constructed for a previous collider (LEP – the Large Electron Positron collider). This was the most economic solution to building both LEP and the LHC. It was cheaper to build an underground tunnel than acquire the equivalent land above ground. Putting the machine underground also greatly reduces the environmental impact of the LHC and associated activities. The rock surrounding the LHC is a natural shield that reduces the amount of natural radiation that reaches the LHC and this reduces interference with the detectors. Vice versa, radiation produced when the LHC is running is safely shielded by 50 – 100 metres of rock. Can the work at CERN be used to build more deadly weapons? Unlikely for two main reasons. Firstly, CERN and the scientists and engineers working there have no interest in weapons research. They are trying to understand how the world works, not how to destroy it. Secondly, the high energy particle beams produced at the LHC require a huge machine (27km long, weighing more than 38,000 tonnes – half the weight of an aircraft carrier), consuming 120MW of power and needing 91 tonnes of supercold liquid helium). The beams themselves have a lot of energy (the equivalent of a Eurostar train travelling at top speed) but they can only be maintained in a vacuum, if released into the atmosphere they would immediately interact with atoms in the air and dissipate their energy in a very short distance. Are the high energies produced by the LHC dangerous and what happens if something goes wrong? The LHC does produce very high energies, but these energy levels are restricted to tiny volumes inside the detectors. Many high energy particles, from collisions, are produced every second, but the detectors are designed to track and stop all particles (except neutrinos) as capturing all the energy from collisions is essential to identifying what particles have been produced. Very little of the energy from collisions is able to escape from the detectors. The main danger from these energy levels is to the LHC machine itself. The beam of particles has the energy of a Eurostar train travelling at full speed and should something happen to destabilise the particle beam there is a real danger that all of that energy will be deflected into the wall of the beam pipe and the magnets of the LHC, causing a great deal of damage. The LHC has several automatic safety systems in place that monitor all the critical parts of the LHC. Should anything unexpected happen (power or magnet failure for example) the beam is automatically ‘dumped’ by being squirted into a blind tunnel where its energy is safely dissipated. This all happens in milliseconds – the beam, which is travelling at 11,000 circuits of the LHC per second, will complete less than 3 circuits before the dump is complete.Tunnelling to the beginning of time
The Large Hadron Collider
The LHC is asking some Big Questions about the universe we live in
About the LHC
What is the LHC?
What will the LHC do?
FAQs