9 Unsolved Mystery in Scientific

Although human civilization and science had progressed so rapidly, but some things still leaves some questions and puzzles. The following is compiled by the mysteries LiveSience site, which until now still can not be solved by 'scalpel' pure science.

1. How the universe was created?

The theory of the big bang that started the universe 13.7 billion years since then seen as a plausible theory, although it can not be directly tested. In theory, everything starts with a small space and then expand and grow big. by due process of inflation (pumping). "Up to now we do not yet know what causes inflation, or even whether the theory is right or not," said Eric agol, an astrophysicist from the University of Washington.

2. Do aliens really exist?

It is something that is logical to assume that when there is life other than on Earth. Therefore, the elements necessary for life are widely distributed in the universe. In addition, the solar system similar to our solar system was also found in outer space. "So at least, there is the possibility that there is other life out there," said Jill Tarter, director of the Center for SETI Research in California.

3. Is there really a Theory of Everything?

The experts usually have a pretty good standard models to define everything in the universe down to the smallest particles, ranging from magnetism to the atoms are arranged and how they can remain stable. This standard model particles to be looking at the dots are very small, some of which contain a fundamental force. Only, the weakness of the standard model before, is its failure to perform the calculation of the gravity and very high energy.

Well, if there is a theory that can consistently include two of these things in the modeling, the universal theory of physics will actually be realized. Unfortunately, many researchers think it will never be achieved.

4. What causes gravity?

Although gravity has been studied since the time of Newton, but the field is still little known to man. Gravity can not be explained by standard physics mode. The gravity theorists believe may be related to small particles called gravitons are massless cause gravity.

"Gravity is totally different from other styles that can be described in the standard model," said Mark Jackson, a theoretical physicist from Fermilab in Illinois USA. "When you do the calculation of gravitational interaction is small, then you will get a nonsensical answer. Mathematics did not could work, "he said.

5. Where other parts of the universe?

Humans have many limitations when trying to investigate the universe. "It is also called the dark side of the universe," said Michael Turner, an expert on cosmology from the University of Chicago. According to him the greatest mysteries of the universe is dark matter and dark energy.

While researchers strive to explore outer space down to the furthest and deepest into the bowels of the earth, however, the new estimated 4 percent of the matter and energy are found. While 96 percent are still not known.

6. How does the brain work?
Until now, no one has been able to explain how the human brain works. With billions of neurons and each neuron has thousands of connections, the brain is very difficult to study.

"We all think that we can understand our brains, at least through our own experience. Fact, our subjective experience is minimal guidelines to determine how the brain works," said Scott Huettel, an expert from the Center for Cognitive Neuroscience at Duke University.

Until now researchers have not been able to determine how neurons form functional networks when people are learning, remembering, or doing other activities, including the time to see, hear, move, or in the middle in love.

7. How did life on earth could have happened?

Humans have found preliminary evidence of the existence of life on earth from simple germs around 3 billion years ago. But how then the initial event of another sentient life on Earth, until now unknown.

"Many theories of the origin of life has to offer, but it is very difficult to justify and prove." said Diana Northup, Cave Biologist from the University of New Mexico.

8. Who are you?

Nature of the human consciousness over the years, is still confusing for psychologists and cognitive scientists in the field. Part of the answer to the fundamental question was answered with a simple: something that triggers us to do something, are fused with human nerve tissue.

Although we think that what we do is free will, but any work that is done by humans are also influenced by unconscious processes and the environment. And, how do we make a conscious decision that makes sense besides humans have souls? Now this is still a mystery.

9. What happens when the earthquake struck?

Until now, people still do not know what happened when the earthquake took place. Though earthquakes occur in the belly of the planet, right under our feet. Until now, experts can only explain from where the earthquake originated and what is involved in faulting earthquake event, or maybe just to predict how long aftershocks will last.

But until now they could not exactly explain what is happening in the earth when the earthquake took place. The nature and behavior of the power that made the fragments continue to move up and then finally there was an earthquake until now is still a mystery.

"The problem is the seismic shift on one of the most basic of all the sciences of earth. Yet it remains a mystery story 30-year-old, who has not been solved," said Tom Heaton, an expert in geophysics from Caltech.