Sunday, October 30, 2011

Dirt

Today in class we watched a movie called dirt that shows if it is living or non living. It all stared when we were learning about biotic and non biotic then we stared talking about dirt and in which category it would fall in. So we watched this movie and it has lots of interesting facts and ideas. We learned that dirt is a vital resources that gives us much more then we think and in different parts of the world it is used differently. It can be used for food, items and even houses. People all over the world worship it and it is a part of their culture and they worship it for food. They believe that their is a god who gives the soil they fertility so they can grow crops and they worship him by sacrificing animals. Dirt is also getting destroyed more and more because of mining and many other things and without it we wouldn't be on this planet. This movie was very interesting and it showed that dirt is living and if we don't stop destroying it it will become rare.

Thursday, October 27, 2011

Astronomers Discover Complex Organic Matter Exists Throughout the Universe



Every day we get more information on how the earth was made, and this gave a clue how it was. There has been a new theory about how the earth was made and it is from stars. It does sound weird and unbelievable but there is a good explanation why. Prof. Sun Kwok and Dr. Yong Zhang of The University of Hong Kong found out that there is a organic substance that is commonly found in the universe and it has a similar structure to coal and petroleum. Coal and petroleum are the remnants of ancient life so that gave us the idea the stars created earth. Scientist investigated infrared emissions detected in starts. This is more commonly known as unidentified infrared emission features. Scientist thought that it was made by only two atoms but it is much more complex like coal. By looking at start dust that was left when a nova happened they saw that the stars produce this organic substance on weekly bases. Stars are not only creating complex organic materials they are also ejecting it into the general interstellar space. One really interesting thing is that the complex structure is also found in meteorites.”Our work has shown that stars have no problem making complex organic compounds under near-vacuum conditions," says Kwok. There is still lots to research about and understand but one day the answer will come.

Tuesday, October 18, 2011

Dark Matter Mystery Deepens

For years scientist have tried to explain what the universe is made of and they finally found the answer but the answer only make more questions about how it is made and what is its molecular structure. So they found out that it is made of dark matter. Dark matter is invisible and we only know it’s there because it has gravitation pull. Without it all the starts in the universe would just go off in different directions. The nature of dark matter is a mystery that when scientist investigated it only made more questions. A standard cosmological model of the universe shows that it is full of dark matter. Astronomers think that dark matter consists of cold which are exotic particles that clump together gravitationally. Over time the groups of dark matter grow and they attract normal matter which makes the galaxies we see today. Scientist use the highest tech computer to simulate dark matter and it show that it should all over the galaxy but in the middle there should be the most dark matter. Recent research from two dwarf galaxies shows that it is evenly places all over the space which is a big puzzle that they have to solve. They use dwarf galaxy for research because they are made up of 90% of dark matter and 10% of normal matter this makes them a great target for research. They have made lots of research and every day we find more and more information on what are they made of.

Thursday, October 6, 2011

One step closer to creating quantum computer.


Some physicians at the Rice University have discovered a partial that will some day in the near future be used for a quantum computer. It is a new kind of a computer that uses quantum particles instead of digital microchips found in today’s computers. Scientists discovered a new method for making tiny device called a quantum spin Hall topological insulator that acts like a superhighway electron that represents the basis for creating quantum particles to store data. Today’s computers are based on binary system where data could use either zeros or ones in a system but thanks to quirks in quantum mechanics quantum bits could be both zeros and ones. It improves the computer’s functionality and overall performance. It could preformed some complicated calculations or it could be used for much effective code breaking, biomedical simulation and climate modeling. But there is one problem: quantum fluctuations can produce the loss of data encoded in quantum bits and this is commonly known as "fault tolerance". Physicians say that they don’t need lots of quantum bits because they would need roughly 30 that are equal to 1 billion transistors. They rely on topological designs that are more fault tolerant. But the real problem is how to put a stable pairs of particles,  called Majorana fermions, into a chip.
"We are well-positioned for the next step," Du said. "Meanwhile, only experiments can tell whether we can find Majorana fermions and whether they are good candidates for creating stable qubits."