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Top 5 remarkable engineers of all time

Friday, April 27, 2012

Leonardo da Vinci


Perhaps the biggest visionary of all time, Leonardo foresaw everything from the helicopter to the tank to the submarine. Modern engineers have proven that many of his designs, including bridges, hang-gliders, transmissions, parachutes, and more would have worked had they been built. There have been few individuals in the history of engineering who have designed so many revolutionary devices that actually worked. For having this remarkable vision and intelligence, Leonardo qualifies as the most remarkable engineer of all time.
2. Thomas Edison


Edison is the most prolific inventor in history, holding a record 1,097 patents. He developed the phonograph, incandescent light bulb, stock ticker, motion picture camera and projector, and hundreds more. He also created the first electrical plant and distribution infrastructure. Without these inventions, modern life is almost inconceivable.
3. Henry Ford


Henry Ford realized that he would a more efficient way to mass produce cars in order to lower the price. He looked at other industries and found four principles that would further their goal: interchangeable parts, continuous flow, division of labor, and reducing wasted effort. Ford put these principles into play gradually over five years, fine-tuning and testing as he went along. In 1913, they came together in the first moving assembly line ever used for large-scale manufacturing. Ford produced cars at a record-breaking rate forever changing the automobile industry.
4. Wilbur and Orville Wright


Before Wilbur and Orville discovered what would later become the safest mode of transport, they were bicycle mechanics with a passion for kite-flying. The crucial insights from both fields would later propel them to victory in the race to the sky.

Most prototypes of the time could not stay in the air long enough after taking off. The Wright brothers however understood that stability was crucial in overcoming this challenge. After several experiments using kites and gliders, they created a pulley system that altered the shape of the wing in mid-flight, increasing and decreasing the speeds. The Wright brothers were also the first to look at propeller design and aerodynamics, profoundly changing the world.
Hero of Alexandria


This man could have started the Industrial Revolution in 50 AD with the invention of the Aeolipile, a form of steam or jet engine where jets of steam spin a ball. However, he failed to realize what the device could do, and thought of it as nothing but a toy. Some have speculated that the abundance of slave labor negated any need for a labor-saving device, so no one applied his device in the manner of the Industrial Revolution. Hero also wrote many works on subjects ranging from pneumatics to mathematics to physics.

How does the sun release energy

Energy's Origin


The sun, like all active stars, is a massive hydrogen-burning furnace producing huge amounts of light, heat and radiation, about 4 x 10^26 watts every second. The sun, in fact, is the origin of all energy on the earth, even fossil fuels. The process by which the sun creates and releases energy is called fusion.


Hydrogen Fusion Progression


Hydrogen is the lightest, most simple element in the universe, consisting of just one proton and one electron. At low temperatures, the positive charge of the hydrogen nuclei repel each other, preventing fusion. However, as a young star condenses, increasing its temperature and pressure, four hydrogen atoms will come in close enough proximity to fuse together into a single atom of helium. In the process, some mass is converted into energy. Hydrogen fusion can begin at 8 million degrees Kelvin. As hydrogen fusion progresses, the star reaches higher and higher temperatures which allow it to fuse heavier elements. Three atoms of helium fuse into a single atom of carbon-12 at 100 million degrees Kelvin.



Layers of the Sun


The energy released by fusion is in the form of gamma rays, small but highly energetic waves of radiation. Their high frequency but small wavelength makes them dangerous to living cells. Fortunately, most fusion occurs in the core of the sun, and before the gamma rays can be released into space, they must pass through the outer layers of the sun. Immediately surrounding the core is the radiation zone, a region so dense that it takes on average 171,000 years, and up to several million years, for energy to escape it. The next layer is the convection zone, where hot plasma close to the core rises while cooler plasma sinks. In the convection zone many gamma rays are further slowed and propagate as photons, particles of visible light, as the energy moves to the surface of the sun.



What Reaches Earth


The photosphere is the region of the sun that contains the visible light. Its temperature is still between 4,500 and 6,000 degrees Kelvin but is significantly cooler than the inner layers. The outermost part of the photosphere is called the corona and is where sunspots and solar prominences occur. Of the energy reaching Earth, about half is visible light and half is in the infrared part of the electromagnetic spectrum. But the most dangerous is the small amount of ultraviolet radiation. Energy escaping the photosphere moves at about the speed of light, taking about eight minutes to reach Earth

6 Worst Plastic Surgery

Wednesday, April 25, 2012

1.Hang Mioku: the korean plastic surgery addict who injected cooking oil into her own face
One of the most famous cases of awful plastic surgery gone wrong, Hang Mioku, a 48 year-old woman from South Korea, became so addicted to plastic surgery that she was left unrecognisable after her obsession led her to inject cooking oil into her face. She had her first plastic surgery procedure when she was 28. Following operation after operation, her face was eventually left enlarged and disfigured, and the surgeons she visited refused to carry out any more work on her and one suggested that her obsession could be a sign of a psychological disorder. So Hang resorted to injecting cooking oil into her face. It became so grotesquely large that she was called "standing fan" by children in her neighbourhood - due to her large face and small body.

As Hang's notoriety spread she was featured on Korean TV, viewers seeing the report took mercy on her and sent in enough donations to enable her to have surgery to reduce the size of her face. During the first procedure surgeons removed 60g of foreign substance from Hang's face and 200g from her neck. After several other sessions her face was left greatly reduced but still scarred and disfigured, a true challenge for korean plastic surgery.
2.Jocelyn Wildenstein: a US$4 million monster
Known by the press by the nickname of "The Bride of Wildenstein" --a reference to The Bride of Frankenstein--, Jocelyn Wildenstein has allegedly spent almost US$4,000,000 on cosmetic surgery over the years, ending up as one of the worst and most famous cases of plastic surgery addiction. But who did that happened?

Once upon a time, in the late 70’s there was a beautiful women named Jocelyn Wildenstein. Jocelyn really had it made. She was a fresh-faced mother of two and married to an extremely rich art dealer. That is until she caught her husband in bed with a 21 year old Russian model. Now, any normal person would just leave her husband and take all of his money with her, right? Not Jocelyn Wildenstein! Instead she decided to win back her husbands love and make herself more beautiful by going under the knife. Well, her husband left her anyways, but Jocelyn will always have her plastic surgeon.
3.Michael Jackson: more than 10 nose surgeries
Does this really need to be explained? It’s incredible to forget how absolutely normal Michael Jackson looked back in the 70’s and 80’s, attractive even, before turning into the sideshow freak that he is today. He is rumored to have had more than 10 nose surgery procedures on his life.
4.Pete Burns: famous singer, spent almost all of his life savings on reconstructive surgery
Pete Burns, former frontman of the British band Dead or Alive --famous for their single "You Spin Me Round (Like a Record)"--, has had extensive polyacrylamide injections into his lips, along with cheek implants, several nose re-shapings and many tattoos. He revealed in early 2006 that he had spent almost all of his life savings on eighteen months of reconstructive surgery after a procedure on his lips went horribly wrong.
5.Dennis Avner: the Catman
Dennis Avner, also known by "Catman" or his native american name of "Stalking Cat", has undergone incredible extensive surgery in order to look like his totem animal, the tiger. Modifications include extensive tattooing, transdermal implants to allow whiskers to be worn, subdermal implants to change the shape of the face and the filing and shaping of the teeth to make them look more like a tiger's.

6.Eric Sprague: the Lizardman
Born Eric Sprague in 1972, the Lizardman was one of the first people to have a split tongue and in some circles is seen to be wholly responsible for the recent popularity of this particular modification. This 37 year old man has transformed himself into a reptile via 700 hours of tattooing, five Teflon horns implanted beneath the skin of his eyebrows, filing down of his teeth into sharp fangs, bifurcation of his tongue, and stretching of his septum and earlobes.

Plastic surgery

According the The American Board of Plastic Surgery’s website:

“ Plastic surgery deals with the repair, reconstruction, or replacement of physical defects of form or function involving the skin, musculoskeletal system, craniomaxillofacial structures, hand, extremities, breast and trunk, external genitalia or cosmetic enhancement of these areas of the body… The plastic surgeon uses cosmetic surgical principles both to improve overall appearance and to optimize the outcome of reconstructive procedures. Special knowledge and skill in the design and surgery of grafts, flaps, free tissue transfer and replantation is necessary… Anatomy, physiology, pathology, and other basic sciences are fundamental to the specialty… Competency in plastic surgery implies an amalgam of basic medical and surgical knowledge, operative judgment, technical expertise, ethical behavior, and interpersonal skills to achieve problem resolution and patient satisfaction.”
Cosmetic vs. Reconstructive

There are two main types of plastic surgery: cosmetic plastic surgery and reconstructive plastic surgery. Cosmetic surgery seeks to improve the patient’s features on a purely aesthetic level, in the absence of any actual deformity or trauma. On the other hand, the purpose of reconstructive surgery is to correct any physical feature which is grossly deformed or abnormal by accepted standards---either as the result of a birth defect, congenital disorder, illness, or trauma. Often, reconstructive surgery addresses not only a deformed appearance, but also seeks to correct or improve some deficiency or abnormality in the function of the body part in question.

Rwanda mountain Gollilas

Friday, April 20, 2012

How WiFi works


Wi-Fi is derived from the decades old term Hi-Fi that stands for the output’s type produced by quality music hardware. WiFi Technology is WIRELESS FIDELITY and stands for all those technologies that fall under the specifications of IEEE 802.11 including 802.11a, 802.11b and 802.11g. The association of the term WiFi with various technologies is merely because of the promotions made by the Wi-Fi Alliance.



For those whose laptops and cell phones do not have a built-in wireless transmitter then you could purchase a wireless adaptor and inject it into USB port. A Wi-Fi hotspot is automatically discovered and connected by the transmitters. The presence of Wi-Fi in public places makes it convenient to stay connected to your official tasks or to the social networking.

Wi-Fi is also associated with 802.11 networking. The reference is derived from IEEE – Institute of Electrical and Electronics Engineers uses the numbering system for classifying a range of technological protocols.


Wi-Fi steps into the boots of TV and radio in order to transmit data through radio waves. The two-way radio communication: the wireless adapter translates data into a radio signal then transmits it via antenna; and the signal is received and decoded by the wireless router that uses a tangible wired Ethernet connection to send information to the internet. The equation is reversed when wireless router receives data from the internet and translates it into a signal where the wireless adaptor receives the signal and decodes it.

Life Lessons za leo

Thursday, April 19, 2012

The purpose of life is simply to live a life of purpose. With no reason to get up in the morning life can start to really get you down. Watch out retirees! Make sure you retire to something instead of from something. (Ricky K., 33)
There are no things or powers in life that can offer you a hand to your dreams except meeting new people who are better than you. You always can learn something from them. (Dmitry, 16)


Dream big dreams, believe in yourself, trust in God, and work hard so that those dreams can be a reality. (Natalia, 20)

My life experience is that I am learning to become more of myself rather than comparing myself with other people. Other people expect me to be like them, but I don't want to be like them, I just want to be more of myself and to accept myself for who I am. (Sharon N., 39)

Get to know the top 3 fastest computers in the world in 2012

1. The slightly mysterious Chinese one: Tianhe-1A


China's supercomputer is currently the world's fastest: it can run at a sustained 2.5 petaflops (a petaflop is a thousand trillion floating point operations per second) thanks to its 186,368 cores and 229,376GB of RAM.

While the horsepower comes from off-the-shelf Intel and Nvidia chips, the New York Times says that the Chinese machine's speed is down to its interconnect, the networking technology that connects the individual nodes of the computer together, which is twice as fast as the InfiniBand technology used in many other supercomputers.

It's located in Shenzhen's National Supercomputing Centre, where it's used by universities and Chinese companies.

2. The one with a quarter of a million cores: Jaguar


Jaguar, a Cray XT5-HE supercomputer located at the US Oak Ridge National Laboratory, has quite a few cores: TOP500 says there are nearly a quarter of a million since its most recent upgrade.

Jaguar's 224,162 cores come courtesy of a whole bunch of six-core Opteron chips, and its performance is a hefty 1.76 petaflops. Oak Ridge says it's the world's fastest supercomputer for unclassified research.

3. The other slightly mysterious Chinese one: Dawning Nebulae


When it launched in early 2010 the Chinese Dawning Nebulae supercomputer was the world's fastest, with performance of 1.27 petaflops, but it's already in third place thanks to Jaguar and China's own newer, faster Tianhe-1A. Like its sibling Nebulae is in the National Supercomputing Centre in Shenzhen.

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The largest Black hole in the universe

How neuclear power generates electricity



Meet the Bill Gates of Africa,Dr.Philip Chukwurah Emeagwali, the inventor of wolrd's fastest computer

Friday, April 13, 2012



Much has been made of the rise of Bill Gates, who dropped out of Harvard to create what would eventually become Microsoft. Philip Emeagwali dropped out of school in Nigeria at the age of 14 and went on to become a renowned computer scientist and mathematician, whose computational skills are being translated into such practical uses as the recovery of additional oil reserves in OPEC nations.

Philip Emeagwali, the oldest of nine children, was born in 1956 in the town of Akure, Nigeria. The family was poor; his father James was a nurse and his mother Agatha was a homemaker. Philip showed an early talent for mathematics. By the time he got to high school, his mathematical skills were so evident that his classmates gave him the nickname "Calculus."

Unfortunately, the family could not afford to send Philip to school after he turned 14, so he was forced to drop out. This did not keep him from studying, however. Making use of his local public library, he taught himself advanced math, physics, and chemistry. He passed a high school equivalency exam at 17.

Soon afterward, Emeagwali was awarded a scholarship to Oregon State University, where he majored, not surprisingly, in mathematics. He received his bachelor's degree from Oregon State; he later received two master's degrees from George Washington University in Washington, D.C. (in ocean/marine engineering and civil/environmental engineering), and a master's from the University of Maryland in applied mathematics. He earned his Ph.D. in scientific computing from the University of Michigan.

Emeagwali's most important contribution to computer science is his work with supercomputers. He proved that supercomputer research could be conducted by remotely programming a supercomputer using the National Science Foundation Network (NSFNET). What Emeagwali proved was that users could hook into many smaller computers instead of one supercomputer to access information or solve complex computational problems. In 1989, he used the Internet to access more than 65,000 computers in order to perform a complex calculation--which he did at three times the anticipated speed of a supercomputer. He discovered that this was possible by using the earlier calculations of a German scientist, Paul Fillunger. Fillunger had been unable to prove his calculations correct, but Emeagwali reexamined them and was able to solve key equations to do prove Fillunger's calculations.

Emeagwali used these equations to help map petroleum reservoirs in simulation. By using complex calculations, he showed how oil engineers could more accurately track oil flow underground and get the maximum amount of oil out of any reserve. Experts expect that the new technology could eventually increase oil revenues by billions of dollars.

Emeagwali has received several awards for his discoveries, including the Gordon Bell Prize and the National Society of Black Engineers' 1996 "Pioneer of the Year" award. He is married to Dale Brown Emeagwali, herself a noted microbiologist; the couple have a young son. Emeagwali's hobbies include exploring the Internet, but he also plays tennis, swims, and runs.

Can the street children live a purpose-driven life? can they show the greatness within them?

It doesn't matter where you come from, what you path through in life doesn't matter, what matters is who you become, remember it is always the end that justifies the beginning.
Today lets look at Les Brown's biography and get something useful from it.

As a renowned professional speaker, author and television personality, Les Brown has risen to national prominence by delivering a high energy message which tells people how to shake off mediocrity and live up to their greatness. It is a message Les Brown has learned from his own life and one he is helping others apply to their lives.

Born a twin in low-income Liberty City in Miami, Florida, Les and his twin brother, Wes, were adopted when they were six weeks old by Mrs. Mamie Brown. Mrs. Brown was a single woman who had very little education or financial means, but a very big heart.


As a child Les’ inattention to school work, his restless energy, and the failure of his teachers to recognize his true potential resulted in him being mislabeled as a slow learner. The label and the stigma stayed with him, damaging self-esteem to such an extent that it took several years to overcome.

Les has had no formal education beyond high school, but with persistence and determination he has initiated and continued a process of unending self-education which has distinguished him as an authority on harnessing human potential. Les Brown's passion to learn and his hunger to realize greatness in himself and others helped him to achieve greatness. He rose from a hip-talkin morning DJ to broadcast manager; from community activist to community leader; from political commentator to three-term legislator; and from a banquet and nightclub emcee to premier keynote speaker.

Today, as one of the world’s most sought-after motivational speakers, Les Brown presents to Fortune 500 companies and organizations all over the world. His “heart-felt” style and tremendous passion for speaking leaves his audiences with a larger vision for their lives and the motivation to take the next step.



Get to Know the world's top 5 wealthiest professors

Thursday, April 12, 2012

ADI SHAMIR
After getting his PhD in 1977, Shamir worked as a researcher at MIT and eventually returned to a his alma mater, Israel’s Weizmann Institute, for a professorship. He also taught courses at the Ecole Normale Supeieure in Paris. While Shamir plays a major role in computer science academia, he also helped develop some major cryptography algorithms that made him quite wealthy. Patents on the RSA algorithm, Feige-Fiat-Shamir identification scheme and a variety of digital signatures and voting systems have netted him hundreds of millions (if not over a billion) over the past few decades. It also earned millions more in royalties for the Weizmann Institute.
HENRY SAMUELI

Today, Henry Samueli is the co-founder, senior vice president and CTO at the Broadcom Corporation — but he didn’t always work in the business world. After receiving his PhD in electrical engineering from UCLA, Samueli began working as a professor there. It was not until a decade later, in 1991, that he decided to found Broadcom Corporation with a former student, each putting in a modest investment $5,000 invest. This paid off for the professor, and by 1998 he retired from his academic position and focused on the business full time. Today, Samueli has a net worth estimated at $2.3 billion — a big step up from his UCLA salary.
DAVID CHERITON

Professor David Cheriton has taught computer science at Stanford since 1981 and taken part in some amazing research into operating systems. He’s also won numerous accolades for his work. Yet he is best known for his investments in budding technology companies. In 1995, he put money towards a nascent Google, a smart move that has earned him just over a billion to date. The professor also invested in a number of other technology companies, and is now worth around $1.8 billion total. While notoriously frugal with his money, Cheriton has been quite generous with giving back to the academic community, donating $25 million to the University of Waterloo and another $2 million to the University of British Columbia.
ROBERT S. LANGER
An engineer and David H. Koch Institute Professor at MIT (one of the highest honors the school offers), Langer is one of the leading academics working in the fields of biomedical and chemical engineering today. Known for his biotech research on drug delivery systems and tissue engineering, Langer holds over 760 patents in the medical and engineering worlds. It is these patents, as well as his work as a director at multiple medical research and pharmaceutical companies, that have helped make him one of the wealthiest academics today. Langer not only has a generous net worth of his own, but directs over $10 million in grants for his MIT research lab – the largest biomedical example in the world.
STEPHEN HAWKING
One of the best-known names on this list, Stephen Hawking is a legend in cosmology and theoretical physics — not to mention of the most renowned academics of all time. Hawking was the Lucasian Professor of Mathematics at the University of Cambridge for 30 years, retiring in 2009. Throughout his career, he received numerous awards and made major breakthroughs in our understanding of black holes, general relativity and quantum gravity. An academic celebrity, much of Hawking’s wealth comes from the popularity of his books, including the runaway best seller A Brief History of Time. Today, the retired Hawking is estimated to be worth about $20 million.

NASA's Mars rovers

Tuesday, April 10, 2012

The mind of an entrepreneur is the mind of madness


Well, the mind of an entrepreneur is the mind of madness because what you are doing is that you are going against the grain. Everybody is telling you that you can't do it

What famaous CEOs say about cloud computing

Monday, April 9, 2012

computer industry is the only industry that is more fashion-driven than women's fashion. Maybe I'm an idiot, but I have no idea what anyone is talking about. What is it? It's complete gibberish. It's insane. When is this idiocy going to stop? We'll make cloud computing announcements. I'm not going to fight this thing. But I don't understand what we would do differently in the light of cloud.

Larry Ellison

CEO - Oracle Corporation
We think everyone on the planet deserves to have their own virtual data center in the cloud. What a developer gets when they have an account with the Sun Cloud is their own virtual data center

Lew Tucker

CTO - Sun Cloud Group.
Cloud computing is really a no-brainer for any start-up because it allows you to test your business plan very quickly for little money. Every start-up, or even a division within a company that has an idea for something new, should be figuring out how to use cloud computing in its plan.
Brad Jefferson

CEO - Animoto.
With AWS a new server can be up and running in three minutes (it used to take Eli Lilly seven and a half weeks to deploy a server internally) and a 64-node Linux cluster can be online in five minutes (compared with three months internally)…The deployment time is really what impressed us.
Dave Powers

Associate Information Consultant - Eli Lilly and Company.
the pre-cloud ERA, the cost of building software was so high that we often have to define a scope and leave out functionality which we feel doesn't fetch the ROI for automation. Cloud makes whatever that was previously left out of scope as candidate for automation now! Thanks to simplification, access and affordability brought by IaaS and PaaS.
Suresh Sambandam

Founder & CEO OrangeScape
Our industry is going through quite a wave of innovation and it's being powered by a phenomenon which is referred to as the cloud.

India will not only see a surge in cloud computing services but companies all over the world will look to India to support their transition to cloud computing.
Steve Ballmer

CEO - Microsoft

Happy Easter to you all

Sunday, April 8, 2012

when life has you feeling down, keep these words in mind

 

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