Saturday, December 6, 2008

Will DNA use in Computer instead of SILICON CHIPS?


Some people belived that the future of computing lies in the molecule that provied the blueprint for how living creatures are made?
It started in the 1990s when Leonard Adleman, of the Unversity of South California, came up with a way to use DNA to solve one of cmputing's most difficult and complex tasks. The travelling salesman problem. This tries to find the most efficient way to visit a set of cities so that you pass through each one as possible --- ideally, only once. Adleman worked out that the paths between cities could be cooled into DNA.
If a path between two citi$es matched, those DNA strands would stick to each other . Eventually, lots of strands would macth up to produced a list of cities in DNA, packed into a classic double helix. Just shaking up a test tube full of those different DNA strands did the job. It was the ultimate parallel processor. Or was it?
In a silicon-based computer, the transistors that do the calculations are feed it to them. With a DNA computer, you have to make a complete new set of DNA strands each time. ITs a new computer every time you want to calculate something.
It gets worse. DNA computing only looks fast because things can happen in parallel. BUt the reactions only works if you can tolerate errors, said Ellington.
" DNA computers can manipulate matter: Chemistry is their world, " said Zack Booth Simpson, a software engineer and molecular biology researcher at the University of Texas. But when it comes to manipulating digits, silicon is likely to keep its edge into the foreseeable future.

Thursday, December 4, 2008

What Really Waped out the DINOSAURS?


world's specThey are the most successful animals on the planet and the most ferocious. They ruled the world fro 100 million years. Some grew to a gigantic size: STEGOSAURUS, DIPLODOCUS, TYRANNOSAURUS REX. Others become fearsome underwater predators, like ICHTHYANSAURUS, and PLESIOSAURUS, while pteranodons, with their vast wingspans, dominated the skies. And then they die and left the way clear to shrew like mammals to evolve into lions, lemurs and lemmings.



The debate what kills the dinosaurs has been equally fearsome. Depending on who we believed.

--- asteroid impact

--- super volcano

--- gamma ray

--- or they were starved, poisoned, frozen, boiled, drowned, asphyxiated, irradiated or all of the above.



According to Shanan Peters, professor of geology at the University of Wisconsin Madison, that Paleontologist are responsible for the third law of mass extinctions: For every extinction, there's an equal and opposite mechanism.


Since life began 3.5 million year sago, there have been five mass extinctions. The dinosaurs died at the last one, 65 million years ago, but the worst at the end of Permian period, 250 million years ago. Known as " The Great Dying , " it wiped out almost 95% of all species. Some scientist suggest that we are now at the brinks of a sixth mass extinction.



It was the changing of sea level that did for the dinosaurs as well as the other species. A few years ago, in the geological time, the world looked rather different. Europe was a shallow sea, 100 meters deep, and a band of ocean ran through the middle of America. This stretch of sea teemed with giant sharks, and mosasaurus--- massive marine predators. As the sea drained away, the sharks and masasaurs became extinct.



The last extinction was triggered by a fall of sea levels, but other has caused by a rise. Scientist arrived at this conclusion by collecting rocks from 540 sites in America. They observed two main type of rocks:


CARBONATES ---- like the white sands in a beautiful marine environments like Bahamas.


SILICICLASTICS --- which are the mud sandy beaches often found in UK, dark with sediment that's been washed off the land.



The Yucatan crater is the biggest crater caused by an asteroids in the last 540 million years, but there are lots of crater now with a diameter of more tha 100 kilometers in diameter, which also caused by a asteroids that aren't linked to any extinctions.


So what led to the rise and fall of sea levels? One explanation is the shift in the Earth's tectonic plates. The other is climate change. Over the past 500 million years, ice sheets have been forming, advancing , melting and retreating. These vast perturbations in the climate change were produced by shifts in the Earth's orbit around the sun. Geologists says this is natural and normal: That we are in the cold phased rigth now.



After the death of dinosaur, one species came to dominate the planet --- and its warming the earth up rather rapidly. The 20th century saw the greatest increase in the temperature of any century in the last thousand years. The last decade has been the warmest since records began. The only similar rate and magnitude of global warming seen in the fossil record was 55 million years ago. Something caused massive amounts of carbon dioxide to be injected into the atmosphere and dramatically altered the climate.



GLOBAL WARMING has led on every continent Scientist examined reports dating back to 1970 and found that in the last 90 percent of cases, shift in the wildlife behavior and populations could only be explained by global warming. The team melting permafrost to retreating glaciers, were caused by the increased in global warming temperature.



But even without global warming , were are going to have a mass extinction, its due to habitat lost , and there's no realistic way were going to avoid that without curtailing human population growth. Extinctions will be insidious. we may not recognized it happened, it means we may not see some species in the past. It's already rare to see large blue butterflies, badgers and bee orchids.




according to Dr. Richard Leakey, the famous paleontologist and author of the book " The Sixth Extinction, " every year between 17000 and 100,000 species vanish from our planet.




By the end of this century, the human populations is predicted to have reached 10 billion and the consequences is thougth to be the lost of half of the worl's total number os species. Leaky says; Homo sapeans is a poised to become the greatest catastrophic agent since a giant asteroid collide with the Earth 65 million years ago, wiping out half of the world species in a geological instant.

Wednesday, December 3, 2008

the So called LOVELIFE....( tagalog version)

someone ask me to write a tagalog blog.... hhhmmmm....
so think of a topic that seems... all the time...
LOVELIFE

lovelife, pareho din yan ng worklife, nightlife, highschool life, sexlife at lifeguard. eto sakin lang ah, ndi ko to pinost para mang impluwensya, NOTICE TO THE PUBLIC: All subjects posted by the author is just plain opinion. The following contents of this essay or blog is not made to influence others and asked them to be like the author. All contents are just posted as a way to express opinions and thoughts. ndi ko na yan papanotaryo sayang naman pera ko. pero anyways, lovelife…. parang ang sarap pag nakakarinig ka ng mga tsiks na nagsasabing "ang saya ng lovelife ko", pero antayin mo lang, bigyan mo sila ng mga two to three months, ang dialogue ng masayang lovelife ay mapapalitan ng "panu to di ko na sya mahal" o kaya ay "lagi na lang nya akong sinasaktan". kasabay ng mga naturang dialogue ay ang mga sumusunod:


a.) pagpapalit ng theme ng profile sa friendster. mula sa girly at happy lovelife ay magiging suicidal at emo ang tema.


b.)pagiinom ng madalas. tapos pag medyo nalasing na tatawagan ang bf sabay drama ang eksena.


c.)lalapit ng lalapit sa bestfriend na lalake. maglalabas (kuno) ng sama ng loob.


d.)mag popost ng bulletin at blog na tungkol sa kalungkutan ng kanyang lovelife.



kelan lang narinig mo pa sya na nagsasabing ang saya ng lovelife nya.pareho lang din naman sa mga lalake. pero mas mabigat magdala ng lungkot at kabiguan sa lovelife ang lalake. bukod sa (mas) madalas na paginom at pagsisigarilyo. nagkakaroon din ng malakas na suicidal tendency ang mga lalake. sa mga naghihithit ng adik, tumataas ang dosage nila.(sa mga adik na depress. maganda bigayan ngaun sa pasig)anyways, ang mga lalake naman, ganto "t**g ina pare, ang hot nya na ang bait pa" o kaya naman ay "sh*t pare in love na ata ako". pagkatapos ng maiinit na text messages at ilang libong "i love you" verbally at written, eh napapalitan naman yan ng "t**g ina pare ang labo nya" at "t**g ina nya, minahal ko pa naman sya". hindi ko naman tinatanggi na ako din eh nagdaan sa ganun. pero mas madalas kong dinaan sa inom at pagsama sa tropa(pota! sama kau sa mga tropa ko tanggal depression nyo). ang mga sumusunod naman ay mga madalas gawin ng lalake pag heartbroken.



a.)tulad ng nabanggit. paglakas sa mga bisyo.


b.)pag gawa ng mga bagay na hindi ginagawa dati. tulad ng online gaming at sports.


c.)pagtetext at pangaaway sa ex na parang isang mad stalker.


d.)pagiisip ng mga paraan kung panu magkakabalikan.


e.)pagwawala at paghahanap ng away.


at ang panghuli ay maglibang, tulad ng pagiisip ng paraan kung panu patayin ang ex at kung meron ay ang paraan kung panu patayin ang lalakeng umagaw sa gf. hindi talaga madali para sa isang tao ang maheart broken at masaktan ng punyetang pag ibig na yan. kahit mayaman, mahirap, bobo o matalino ay nahihirapan lalu na kung sobrang nasaktan. kaya kung ako sa inyo, stop spreading the love or you will also spread the hurt. hehehe. joke lang. magandang gawin? maghanap ka ng tama sau, hndi kumo magaling mag break dance at magaling kumanta gaya ni sarah geronimo eh pwede na. ndi kumo kamuka nya ung bida sa prison break o kamuka nya ung chick sa napanood mong scandal eh aus na. hindi din batayan na komo sagitarrius ka at sya ay may alagang persian cat eh compatible na kau. sa tingin ko ginagamitan din ng utak at scientific methods ang pagpili sa babae o lalake na mamahalin mo. kelangan din ng compatability at similarity of interests. ndi pedeng zodiac sign lang lage ang sinusunod mo. sa tingin ko din, kelangan mo din ng advice mula sa mga kaibigan at kapamilya(pati kapuso) tungkol jan. pagbabasa ng libro? sa pananaw ko ndi makakatulong ang mga nababasa mong libro tungkol dun sa pagpili ng tunay mong lovelife. lovelife. isipin nyo, 8 letters lang yan pero ang dami kong nasabi. kaya ako, maglalife guard na lang ako. kesa naman pasakitin ko ang aking ulo(taas at baba) tungkol sa lovelife na yan. maganda nyan. mag post na lang din kau ng blog tungkol sa lovelife, tulad ko…

Supertitious... why do some believed in it?


SUPERTITIOUS habits are common; start at the sight of a black cat, touch wood, and avoid walking under ladders?





Supertitions seems irrational, but they pervade our human life.




According to some scientist, like DR. KEVIN FOSTER, form HARVARD UNIVERSITY and DR. HANNA KOKO, from the UNIVERSITY of HELSINKI, suggest the possibility of a gene for supertition is that, far from being barmy, being supertitious is actually very normal.




Foster says, ” All animals will display behaviors that imply a causal relationship that isn’t there.” —— take pigeons; clap your hands, and they take flight. Pegions are smart to tell a gunshot , from s handclap, yet, they react supertitiously. Better safe than sorry.”
Animals have a gene for supertition and behaved supertitously, they were more likely to be successful and pass their genes to future generations. Being supertitious make sense in an uncertain world. Species that are supertitious — reacting as if their a predator around when a predator is extinct, say —- will do better than less cautious creatures.




This is why humans are also supertitious, Humans are heavily affected by cultures as well as evolution. Cutural effects are shaped by an evolved that are ready associate events, so readily that individuals often makes mistakes. In primative societies, that might mean doing a raindance. Modern societies are equally supertitious. Like alternative medicines; there’s little evidence it works , yet believing that it does may well help someone get better.
humans are born with brain designed to make sense of the world that sometimes lead to beliefs that go beyond any natural explanation. We are born trying to understand the world and this ability to make sense of our surroundings is the same mechanism responsible for supertitious beliefs.





So if our horoscope says the planets are in the correct alignment for new revelations, we might be inclined to believed . We lived in the world full of random events that we cannot control, we used are skills to make sense of our lives by acting as every object and every event really has a purpose, Still, being SUPERTITIOUS is not a bad thing at all. it may help us to propogate our decisions...