Speculation that mention civilization would end in 2012 is incorrect. The issue of the existence of a large star that will strike Earth in 2012 has not been proven.
The researchers argue, there are currently no documentation in the study who were able to identify the type of threat yag look for it. Those who argue that it's real star and be able to pull the asteroid into the solar system did not have proof until now.
When the idea of Nemesis first appeared, this idea is used to describe what the experts call the periodicity of mass extinctions on Earth. In other words, after analyzing the interval in which there are five symptoms of major extinction event, these scientists think they have seen a pattern. It is quoted by Softpedia on Wednesday (08/10/2011).
But to this day no one has been able to show evidence that Nemesis orbits in the Oort Cloud comets, several astronomical units (AU) from Sun. AU itself is the average distance between the Sun and Earth, which is approximately 93 million miles.
Thinkers who support the Nemesis theory states that the object orbiting so far from the sun, but somehow the objects large enough to nudge a comet. Object believed to be responsible for the comets that periodically sent to the solar system that is part of the cloud.
Bailey-Jones (astronomy at Heidelberg) using a statistical tool known as Bayesian analysis to study the rate at which events occur during the mass extinction 250 million years, but they can not find the type of pattern that can indicate the presence of the Nemesis.
Just as the conspiracy theorists who proposed the planet Nibiru, Nemesis seems to be a figment of someone's imagination. If one of the two objects really exist, this is an astronomical impossibility, since both these objects should have been detected long ago.
"Of note, there is no evidence to Nemesis. Something that's left is an interesting question or absence of impact that often occurs during the last 250 million years," concluded Bailey-Jones.
Wednesday, August 24, 2011
The World Will Not End in 2012
Aliens Attacking the Earth Because They Feel Threatened
Everything we do on earth seemed to threaten ourselves. There is a question of why we must save the Earth?
NASA create a new report, written by NASA scientists at Penn State. They explained that the report shows there is a relationship in which the alien beings are green, blue and orange out there might see it as something harmful emissions of man-made, is regarded as a threat to them.
Maybe aliens into account that the Earth provides more threat than they anticipated. The report was questioned, perhaps the signal for the aliens up there claim that unity which we are growing rapidly and must be destroyed before it grows any further.
In order to carry out attacks, the alien may be grabbing people and destroying tiny human body such as killing an ant. But maybe the aliens living with us?
NASA reports that philosophically entitled 'Is the contact with extraterrestrials is beneficial? " offers three categories of possibilities.
As quoted from Cnet, on Friday (19/08/2011), an alien may turn into a very mysterious fellow, they may just want to learn how to play cricket, make baked Alaska and teach us how to attack political opponents or social only by laser arising from their nails.
The second possibility is that the aliens have regarded man as a nuisance, and felt that people can repay. This report argues that they may also be more bureaucratic, which will encourage us to do the onslaught.
Or they may just want to bake Alaska and attack humans. This may occur because of vicious aliens, or just because they are a little awkward to do so.
If only it were true, then Stephen Hawking has warned beforehand that the aliens could actually hate humans. However, this report tries to compile many and varied storylines, which is associated with the future of humans with other creatures.
The Ancestors of Humans are the Aliens
According to NASA, life on Earth may have origins from outer space. Scientists have analyzed the meteorite that formed billions of years ago before falling to Earth.
Who analyzed the meteorite is a carbon that has many fractions and contain chemicals that are similar to the one of the key components of DNA, the element formation of life.
Tests conducted by scientists United States (U.S.), mostly NASA researchers showed that the presence of these chemicals are not contaminated with the Earth. This means that the chemical is showing the origins of DNA that may be located in space and possibly aliens. Demikan quoted as saying by the Daily Mail, Tuesday (09/08/2011).
The findings are derived from chemical analysis were tested against 12 meteorites, and these findings are published in the journal Proceedings of the National Academy of Sciences. Researchers also say they have found the 'impact with far-reaching'.
"Stone meteor and comet impacts in the early formation of Earth, they appear to provide some materials that are very important in the formation of life," said Dr. Michael Callahan, author of the study from NASA's Goddard Space Flight Center in Maryland.
Previous research found two of the three meteorite hidden as the basic ingredient of life.
This is an amino acid, such as 'beads' that when strung together to form proteins and chemicals needed to allow the cells to create a barrier membrane. The chemicals associated with DNA third.
Wednesday, July 20, 2011
Well, Scientists Reveal Secrets of Longevity
The team of scientists claims to have uncovered the secret of longevity. But this new secret can be applied to pets.
Telomeres protect this antiaging drugs, the DNA is strongly suspected to be the key to the aging process. Scientists suspect that aging occurs because of the shortening Telomeres in human genes during her lifetime.
Today, American research team claimed to find a way to slow, even reverse the process of shortening it. In theory, this can prolong life. Sierra Sciences scientist inventor, Bill Andrews, who led the research team is suddenly famous thanks to the discovery of Telomeres.
Andrews founded the company in order to find a way to induce cells that would produce Telomeres and protect it so as not to rot. The new findings will be presented in August at a conference in Cambridge this state, almost 40% different substances contribute to the production of Telomeres.
"Induce Telomeres are willing to produce cells that will be a tremendous medical advances. Unfortunately, for the next few years, these findings can not be applied to humans," he said.
This treatment has not been declared safe for humans.
For now, as reported by dailymail, these new treatments available for pets, like dogs and cats.
Strange, these women have breast in foot
Scientists find strange cases. A 22-year-old woman rumored to have breasts that grows in the leg.
Rare cases are published in scientific journals Dermatology Online. As written the journal, the feet of women is overgrown with something very similar to the breast.
Scientists do not hesitate to call the breast because it stands out like a nipple area, it appears black, surrounded by the areola, and overgrown with hair. Currently she reportedly sought medical treatment.
From the journal, as quoted from TheSun, scientists wrote that according to microscopic examination was done, the skin layer beneath it there is also the root of the hair, ekrin glands, and sebaceous glands.
Not only that, the same source also mentioned, clinical trials have shown the diagnosis of the presence of additional breast glandular tissue, known as pseudomamma. This is the first time found cases of breast tissue grows in the leg.
Women who did not mention the name and origin is claimed to have had breast this leg since birth, and it did not hurt.
Serious! Oceans Getting Scary Threat
After the glacier and some other scary threat, the sea has the 'enemy' just can not underestimated. What is it?
Shipwrecks rest of World War II in the United States East Coast (USA) has a risk of oil release and content in the existing cargo. It was like the Baltimore Sun reported, the German submarines firing ships the goods.
When German submarines began to retreat to focus on a convoy in the North Atlantic, German submarines sank 397 ships succeeded in coastal U.S. waters. National Oceanic and Atmospheric Administration (NOAA) began to record the shipwreck claimed that exist.
This was done to identify the vessel where a potentially huge threat to the environment.
"We started seeing a lot of corrosion on the wreck. The ship that shot torpedoes and it still has not damaged the fuel tank in it," said Lisa C. Symons of NOAA.
Many shipwrecks have contained cargoes of crude oil, fuel oil, diesel fuel and explosives. "Savings can mengahancurkan coastal communities and coastal environments," said Symons.
NOAA malaporkan, there were 233 boats at worst potentially damaging to the environment have been registered in the U.S. Coast Guard and cleanup efforts could be done immediately.
Scientists Discover Two Behavior of Water
Scientists have found two types of behavior of water surface that has never encountered before. It is important to understand the tsunami.
What kind of behavior of water?
It turned out that the water creates waves of different surfaces. As quoted from PhsyOrg, recently, scientists from the University of Nice-Sophia Antipolis, France, found the two forms of water waves which has never known before.
They examine the surface of the water by shaking the water in transparent containers called Hele-Shaw tube. Hele-Shaw tube is a container consisting of two parallel transparent plates separated by a gap of 1.5 millimeters.
Then the researchers set the vibration frequency and amplitude, and tools that was rocked. A high-speed camera mounted next to record the waves created on the surface of the water.
Apparently there are two types of waves are created. Wave which was later called Faraday waves, the first showing the form of symmetry and the other is not symmetry (one high and one low).
Although sound trivial, these findings provide useful new knowledge in chemistry, biology, and to study the behavior of ocean waves, for example, as happened during the tsunami.
Thursday, June 30, 2011
The Reason Men are More Likely Struck by Lightning
Recent research results indicate it is very surprising. Known, men are more likely to die from lightning than women. Why?
Of the 648 cases of death by lightning for 13 years across the United States (U.S.), 82% were men. Recreational activities and sports contributes to almost half of these deaths. In fact, as many as six men died in this year while playing golf in Shreveport, Louisiana. and others play baseball in Ruby, South Carolina.
"Men are more at risk of being struck by lightning," said security specialist lightning National Weather Service (NWS) John Jensenius Science is doing research on this.
This is because men tend to do work outdoors, he added. In the U.S., in July became the month off in this case with an average of 18 victims dead.
This is allegedly due to increased outdoor activities when the storm peaked during this period. The most dangerous state is Florida. Because Florida has a tropical climate which makes it a lightning storm more than anywhere else in the U.S..
"In addition, research shows, men aged 10-19 into the age range of most victims of lightning strikes. Because, at that age they're most school holidays and children often play outdoors, the U.S. weather agency said it."
Experts emphasize NWS, thunderstorms capable of firing rod as far as 16 miles from its core.
"The perception generally, lightning storms occur only when dark and berpetir. However, lightning can propagate a considerable distance from where the rain falls," lid meteorologist Robert Molleda.
Tuesday, June 28, 2011
When Asteroids Not Abolish Dinosaurs
Many people know, the dinosaurs became extinct because a giant asteroid hit Earth. Although there are other factors, what would happen if an asteroid did not wipe out the dinosaurs?
As known to many people, the extinction of the dinosaurs because of the fall of an asteroid about 10 km to the Yucatan Peninsula, Mexico, 65 million years ago. Former event can still be seen up to now, namely 117 km wide crater as deep as 10 km, Chicxulub.
At that time, the asteroid triggered mega-tsunamis, fires all over the planet and make the sun covered with dust from the asteroid that caused a global cooling period that the 'mastermind' death of many plants.
If dinosaurs were not extinct as written Science, today you can still see it. Known, the dinosaur has a dominance in the mainland for long-term, i.e. over 160 million years.
If this continues, primates such as humans cannot be found. According to Damian Nance Professor of Geosciences at Ohio University, mammals are able to evolve alongside dinosaurs, but the evolution of mammals will not be like this time, humans will evolve no bigger than mice.
The researchers estimate, intelligence 'dinosauroid' evolved in humans. It is based on the size of the large human brain that were once only about the size of the bird brain.
Earth Out Food Supply Soon
Although unconfirmed, unknown climate change is directly proportional to the population explosion. In addition, low agricultural output drastically will cause starvation.
International aid organization Oxfam warns poor farmers the results will drastically increase global poverty and hunger over the next two decades. Oxfam estimates the price of foodstuffs, such as corn and rice will continue to skyrocket.
These increases could reach 130-180% before 2030. In a world where the poor spend 80% of income for food. For example the average Filipino, they spend four times more revenue than the average British person.
For them, food shortages and drastic price increases that will encourage and enlarge the potential of the increasing number of people who suffer from hunger. In a recent report Growing a Better Future, Oxfam said, referring to current trends, world population will reach nine billion by mid century.
Meanwhile, the average growth rate of agricultural output almost halved since 1990. If allowed to continue, the gap between demand and supply of food will continue to widen. "The system should be modified foods. In 2050, there will be nine billion people on Earth and food demand will increase 70%, "wrote senior climate adviser Robert Bailey of Oxfam in a report.
This request must be met even if the results did not rise, increasing water scarcity, and competition over land also increased, he added. "Agriculture must quickly adapt to climate change and begin to reduce its carbon footprint arising," he explained.
Oxfam report, climate change has driven up food prices in many areas due to drought and desertification. Moreover, of all the factors contributing to rising food prices, a factor that would also create the most serious impact in the coming decades.
"Climate change impacts on food prices obviously closely related to climate change impacts on crop production," writes Bailey. Yields of rice is estimated to decline by 10% each increase of one degree Celsius in the dry season minimum temperature.
In addition to increasing global temperatures, climate change 'will increase the frequency and severity of extreme weather like heat waves, droughts and floods are able to' remove 'harvest in a single lunge,' the report said.
Oxfam said that global poverty is driven in a broken system in which rich countries exploit the poor. To control this problem, the international community should deal with 'the injustices prevalent in the food system began to farm to farm'.
"We produce more food than necessary. In rich countries, food is a lot of waste. In developing countries, nearly one billion people do not get mananan, "she added.
Industrialized countries have to start changing its main policy to fix this broken system, he also says Oxfam. This country should direct tax relief on clean energy initiatives and give a tax on greenhouse gas emissions.
Furthermore, "We must manage the risks involved with making food reserve system, improve transparency in commodity markets, sets export control regulations, and an end to agricultural subsidies that distorted trade."
This new report refers to changes that must be done to reduce global poverty and hunger. In Brazil, social activism produces a third of agricultural policies that reduce hunger in 2000-2007.
Vietnam managed to achieve comparable results through land reform and investment programs in the areas of small farms (one farm family). "Fortunately, the necessary transformation already underway led by individuals, organizations and movements that think about the future," concludes the report.
Russian scientist: 2031, Human Will Meets Alien
Russian scientist predicts, all mankind will meet with an alien civilization on the next two decades.
"The root of life is as real as the formation of atoms. Life appeared on other planets and we will know within the next 20 years, "said director Andrei Finkelstein Russian Academy of Sciences, was quoted as saying by Interfax media.
Speaking in an international forum to look for extraterrestrial life, Finkelstein said, there are 10% chance of planets similar to Earth revolves around the sun like planets, in other galaxies.
If you can find water in such planets, he continued, then there will be similar to humans alien life complete with two hands, two legs and one head. "Maybe his skin color is different, but we were too different," he said.
Finkelstein Institus run the program since the 1960s when the peak periods of competition into space on the Cold War era. They watch the space, especially the emergence of radio waves in the universe.
"During our search for signs of alien life, we are waiting for messages from outer space and not the other way," he said.
Friday, June 24, 2011
Archaeologists discover Pharaoh ancient ships 4500 Year-old
Archaeologists began digging 4,500 years of wooden ship was found near the Great Pyramid of Giza. The ship is believed to bring the pharaoh Khufu to the afterlife.
The ship is believed to be the bearer of Pharaoh Khufu indigenous religion into the afterlife. Khufu is also known as Cheops is credited as the builder of the Great Pyramid of Giza. Sakuji Yoshimura restoration project leader of Wasela University said, one of the ships of the two ships was found bearing the name of Khufu.
Khufu was the founder of the fourth dynasty in 2680 BCE (BC) and became the leader of Egypt for 23 years. Egypt's Minister of Antiquities Zahi Hawass acknowledges the excavation of this 'one of the most important archaeological projects and conservation of the world'.
The ship was originally discovered in 1954 along with another vessel which was then restored and is considered one of the major findings on the Giza plateau. Experts acknowledge this ship as the oldest ship that could survive until now.
After the excavation is completed, scientists will make this ship a computer scheme to help its reconstruction. Restoration of these findings is expected to take four years.
Once completed, as reported by Fox News, the ship will be on display at Solar Boar Museum near the Pyramids of Giza.
Monday, June 13, 2011
Scientists Discover New Type of Supernova
California - Scientists discovered a new type of supernova. This finding was found after researchers examined six very bright explosion of old stars in outer space. Like what?
The blast was 10 times brighter than ordinary supernova. After the explosion, a cloud formed into 'seed' primitive galaxies. This finding could help scientists investigate the process of galaxy formation.
"We're researching a new type of supernova that has never known," said researcher Robert Quimbydi California Institute of Technology. "Right now we only know the size of the explosion was very bright and hot range 10-20 thousand degrees Kelvin."
In addition, the spread of the explosion reached 10,000 kilometers per second, she added. Quimby also says, this new type of supernova has a low hydrogen content. As a result, it took 50 days for the effects of the explosion disappeared.
"Surely there are factors causing these supernovae could be very big," he said.
Meanwhile, French astronomer said Francoise Combes, a new supernova is very attractive because of its light shine 10 times brighter other supernovae.
Quimby began his studies in 2005 when he studied SN 2005ap supernova whose light 100 billion times brighter than the sun, and two times brighter ordinary supernova. The results and findings of the study was first published in June 2011 issue of the journal Nature.
Creating Light From The Absence
A group of scientists from Chalmers University of Technology in Gothenburg, Sweden successfully creates light out of nothing. They create light in empty space, a space that has been trusted completely empty. Next week, the scientists will present their research findings at a conference in Padua, Italy. Currently, the paper has not been reviewed already uploaded to the website arXiv.org.
Basic theories used in this study is complicated, but very interesting to observe. Based on the webiste publication in Nature last week, this research focuses on quantum mechanics theory which states that a vacuum is not really empty, but consists of particles that exist only in a short time, called virtual particles.
If two small mirror is placed very close together in a vacuum, then the number of virtual particles between the two mirrors will be lower than outside it. As a consequence, will create an attractive force between the mirror that held it to each other. This style can be used to produce particle "real" in the context of light called photons.
For decades, scientists believe that the same effect can be done using a mirror driven. With that step, the mirror can absorb energy from the virtual particle and particle mengemisikannya again in the form of "real". However, this step is almost impossible because the velocity near the speed of light reflection is required.
In the experiments prove the theory, the researchers named Per Delsing and colleagues deal with the impossibility of using a device called a superconducting Quantum Interference Device (SQUID) are very sensitive to magnetic fields. Researchers then 'spend' SQUID magnetic field so that functions like a mirror moving with a speed of 5 percent the speed of light.
As a result, a photon of light is really created. Based on the analysis, the frequency of light waves that created half-frequency SQUID movement. Although his paper has not been re ditunjau, among scientists praised the success of this. As an experimental physicist at Harvard University, Federico Capasso, "This is great progress."
Because the number of photons of light that is created through this experiment is still small, the application results of this experiment was still in the clouds. But, was launched in Physorg.com, stating, if proven successful, the results of this experiment could help find something more useful, for example the production of energy in empty space so that it can be used to support the exploration of the universe.
Three More Days Total Lunar Eclipse
Three more days, precisely on Thursday (6/16/2011) early days, a total eclipse of the Moon will occur and can be witnessed in Indonesia. The eclipse will begin at 0:25 pm and ends at 5:59 pm. Based on the publication of NASA, the totality or the condition when the Moon is not visible at all will last for 100 minutes, from 02:22 o'clock pm until around 4:02 pm.
Total eclipse of the Moon this time can be witnessed in Europe, Africa, South America, Australia, and Asia, including Indonesia. Eastern Africa, the Middle East, Central Asia, and Western Australia can watch the entire eclipse phase. In Indonesia, the region is the same luck Sumatra, Java, Kalimantan, Nusa Tenggara and parts.
Observers in Europe will lose the initial stages of the eclipse because it occurs during the stage before the moon. While observers in eastern Asia, eastern Australia, and New Zealand will miss the final stages of the eclipse because the Moon at that stage was sinking. Region North America are less fortunate because it could not watch the whole of this eclipse.
The duration of totality of this eclipse will be one of the longest in 100 years. In the publication Space.com, Saturday (06/11/2011), the totality of the eclipse can match occurred on the July 16, 1935 for 101 minutes, 6 July 1982, and July 16, 2000 for 107 minutes. The totality of the long eclipse is expected to occur on July 27, 2018 for 106 minutes.
Moon eclipse occurs when the Sun, Earth, and moon occur in a straight line where the Earth is between the Sun and Moon. Unlike eclipses of the Sun, Moon eclipse safely watched with the naked eye without the need for a protector. However, due to happen at midnight, observers suggested a break first.
Related to this total eclipse of the Moon, an amateur astronomer Ma'rufin Sudibyo in his Facebook page telling of the event "Total Moon Eclipse Watching Together June 16, 2011" begins at 1:23 pm. The event was held at Masjid Asy-Syifa in complex Gombong Muhammadiyah Hospital, Central Java.
Before observation, Ma'rufin also will deliver a review entitled "Inside The total eclipse of the Moon June 16, 2011 and Ramadan and Simulation of a 1 Syawal 1432 H/2011". While the eclipse prayer will also be held before the dawn. Telescope with a camera and connect the display and an internal TV will be used so that the observer can see without having to scramble telescope.
Bosscha Observatory will also leverage the momentum of a total eclipse of the Moon is to make observations. However, until now there is no plan to hold a watch with a telescope such as the eclipse of the Moon before considering the time of the eclipse which occurred early in the day it is definitely very cool in Lembang, Bandung.
Thursday, June 9, 2011
Assyrian Dictionary Project Completed 90 Years
Assyrian Dictionary Project to identify and explain the words written in letters of nails on pieces of clay, carved in the Babylonian, Assyrians and others in the region of Mesopotamia between 2500 BC - 100 finally finished after worked for 90 years. University of Chicago announced on Sunday (05/06/2011).
"I feel proud and privileged have completed this project," said Martha Roth, editor of the dictionary project this ambitious and dean at the Department of Humanities at the University of Chicago who was involved projects since 1979. "I feel that this project is the foundation on how to run the other dictionary projects in the future," he added.
Meanwhile, Gil Stein, director of the Oriental Institute, University of Chicago who was also involved in this project said, "The Assyrian Dictionary is the greatest effort that I know of to systematically collect, codify and make the Akkadian language at the heart of textual records in his native Mesopotamia , can be accessed. "
In working on the project for decades, researchers fill millions of index cards with references to the use of 28 000 words. The collected words have meaning and refers to the context and how different usage. For example, in the dictionary that has been completed, the word "umu" which means "day" has the meaning and use described in 17 pages.
Assyrian Dictionary Project was started in 1921, initiated by James Henry, founder of the Oriental Institute of University of Chicago and the Middle East renowned archaeologist. Scientists found that the Assyrian language is actually a dialect of another Semitic language, Akkadian ie. Therefore, this dictionary can also be a bridge to understand the language of Akkadian.
NASA: Solar Flares only Small Impact
A flare erupted from the sun and solar system was captured by NASA's impressive camera. But scientists say, medium-sized events would only have little impact, if any, on the earth.
As reported by Sky News, Thursday (9 / 6), flare peaked initially on Tuesday and created a large cloud which appears to cover almost half the surface of the sun. A cloud of charged particles erupting from the outer solar atmosphere and is expected to pass through the earth on Wednesday night or Thursday morning.
According to estimates Center Space Weather at the National Weather Service, this event causes only minor disruption to Earth's magnetic field. "This is not including large natural events," said Michael Hesse, chief of space weather laboratory at NASA's Goddard Space Flight Center.
"The events of this nature truly spectacular to watch, but not so great in terms of endangering the earth," said Hesse.
At least, cloud that erupted from the sun that can cause a brief interruption to the high frequency radio communications, especially closer to the North and South poles, said Joe Kunches, space scientist at SWPC. Some global positioning devices will also experience a small problem.
"It is also not directly hit the earth. Aurora borealis may also be seen more clearly on Thursday or Friday night," said Kunches.
Pictures of the eruption of flares were successfully recorded by the satellite's orbit called the Solar Dynamics Observatory. The photos and video has become the most spectacular ever captured by the satellite since its launch last year. Much larger solar flare is predicted to erupt on Saturday, but NASA will not be able to capture images due to solar time this happens on the opposite side of the sun from the earth.
Scientists have long expected an increase in solar activity, because the sun is now moving into a more stable period of a cycle of 11 years in which the magnetic field reverses orientation. "The sun has awakened and become more active until we approach solar maximum, which is expected to occur in 2013," said Hesse.
Sunday, June 5, 2011
Nyos Lake, The Lake that has been Sacrificed 1800 Peoples
Lake Nyos, large lake located in the area of Cameroon, West Africa. The depth of this lake reaches 157 m with the deepest 208 meters. There are many people living around Lake Nyos Valley.
However, in 1986, there were peculiarities in residential areas. Around 1700 people died suddenly and simultaneously. Even more strangely, all the people who died were killed while doing their daily work.
There was killed while pumping water, cooking and some are dead while drinking a glass of water. Some survivors of that event to tell what happened on the day these people died.
He said, the night before the incident, the air suddenly felt warm and smelled like rotten eggs. People are not too concerned about it. And suddenly the next morning, many bodies are lying when getting busy with their daily activities.
No one knows for sure what the cause of death was strange. But the experts found, if the water of Lake Nyos color change from clear to bright orange color.
To find answers, the experts then examined the Craten Lake in Oregon. This lake is the largest lake in the world number seven. The extent of 50 square kilometers with a depth of 594 meters. So described if the Empire State entered into this lake, will surely sink.
However, it remains Mazame mountain activities affecting the lake. Because under the lake turns out there are still pools of the former magma that still remain hot.
The experts found that the water temperature at the bottom of the lake a few degrees warmer, its salt content is also ten times more concentrated and contains a lot of CO2. Then the CO2 is then seeping from the cracks of the earth's crust and into the crater that has now become a lake.
However, the presence of water has prevented the rise of CO2 into the air. Even so there is little that escapes, still could be lost brought gusts of wind. So it is not too dangerous.
The process also greatly affect the change of seasons. In winter, the velocity of water will be pushed down because of warmer temperatures below. Conversely in the summer, the velocity of the water will rise to the top.
The cycle is then used to make the appearance of the water layers of different density levels. Bottom water layer is more dense than the above. At the very bottom layer of water that is flowing from the bottom of CO2 that the earth is on hold.
CO2 can not rise higher because of different water concentrations in the layer above it. So gather and accumulate for decades and become very much in the bottom water layer.
This phenomenon was later found also in Horseshoe Lake is smaller than Lake Craten. The trees that grew around the lake dries up and eventually die.
After investigation, it turns out the CO2 levels in the lake reached 100 tons / day and soak into the ground. This is what makes the trees around them die. The experts then conduct experiments to dig a little ground on the lake and tried to light a fire.
However, due pekatnya CO2, the flame goes out immediately once brought near to the ground. It turned out that the accumulation of CO2 that has been very much on the lake finally overflowed and caused the lake becomes extremely dangerous.
However, CO2 levels in Horseshoe Lake is not too harmful to humans, because the limit harmful content is 1.75 million tons. And this will only happen in the event the mountain erupted.
These discoveries then help the experts to be able to conclude what happened in Lake Nyos. In the evening before the event, there is a cliff on the banks of the lake, collapsed and went into the water.
It is estimated that the cliff ruins have been shaking the water layers. So the most basic layer is filled with CO2 to rupture and drain large amounts of CO2 into the surface of the lake.
The next morning the flow of CO2 is then entered the residential area. And because CO2 is colorless and odorless, people are not aware of his arrival. That is what causes many people who died when he was working on his daily activities.
CO2 is like a killer who lurks in silence. Perhaps only a few people are aware of the dangers that are invisible in the bottom of the lake that looks extremely beautiful on that surface.
Without them knowing it, they inhale CO2 pretext arising from the most basic layer of the lake, which has been accumulated over decades. And plenty of people who died because of it.
Saturday, June 4, 2011
Giant Shrimp Length 1 Meter
Animals called Anomalocaridid it looks like shrimp and cuttlefish. One part of his head protruding and circular. Covered their mouths and opens and closes like a camera diaphragm.
The biggest Anomalocaridid prior findings, measuring 0.6 meters. Size is like that alone makes it the largest animal in the Cambrian period (542 to 501 million years ago), as invertebrates evolved into many things.
Besides size, another surprising thing of this invention is a relatively young age of the fossil, estimated age of 488 until 472 years ago. "This animal turned out to survive live 30 years longer than expected," says Derek Briggs, Director of the Yale Peabody Museum, which participated in the study.
Anomalocaridid widespread during the Cambrian period, but begin not in the era 510 million years ago. "What they are extinct or are we looking in the wrong place?" Briggs said can not answer the mystery. Apparently, soft tissue damage before it is formed fossils. Especially for the fossils found in Morocco, the scientists are lucky because the sediment surrounding a preserved animal.
Anomalocaridid ultimately did not produce offspring extinct and modern. "Succeeded fish and other marine predators," said Briggs explained.
Friday, June 3, 2011
Counting with DNA Calculator
There are 130 strands of DNA that is used to replace silicon chips. DNA to function as logic gates that process the incoming signal with a simple law. Incoming and outgoing signals were made of DNA, rather than electrical pulses.
DNA Calculator created Qian and Winfrey is the repair of DNA computer system that has developed since 1990. DNA Calculator is 5 times more powerful than ever before, taking a more flexible system, so the prospect to be developed further in the future.
Qian and Winfrey developed a calculator to calculate the square root of numbers to 15 and rounding the result to the nearest integer. Counting process is quite complicated, involving a binary code and chemical communication system that can display the results.
Using DNA calculator to calculate square roots only demo capabilities. Estuary, according to Winfree, "If you ask the system for doing foreign chemicals such as calculating the square root of 4-digit binary number, then you may be able to use it for something else."
Andrew Ellington, an expert in biochemistry from the University of Texas have been thinking about how to apply a calculator or computer, developed DNA Qian and Winfree to diagnose malaria. "We can see ways in which Qian and Winfree, then design it," he said.
But, Martyn Amos, an expert on DNA computing from Manchester Metropolitan University said, the system is still limited because even require 10 hours to calculate square roots. "The biggest challenge is to apply this construction to work in living cells," Amos added.
