efek banjir

Saturday, April 27, 2013

TRASH IN SCHOOL

There are many trash in school start from plastic, food, bottle, etc.

I think, school must provide two trash bin, for organic and non-organic. But, the school must make a rule that every class be responsible with that trash bin and when there are someone throw the garbage in wrong trash bin so that class must pay 50.000 for one garbage.

After that school make extra that make the garbage into the thing like bag, pencilcase, glass, etc and the participant of the extra can sell their handmade.

And the non organic garbage can make for fertilizer.


Saturday, April 13, 2013

Place of Aliens

Meteorites



There are about 22.000 was reported discovery a meteorite in Earth and many found for hold organic compounds.
In 1996, some scientists report they looked the micro in Mars meteorite that was found in Antarctica show the life that maybe already there in Red Planet about 3,6 billion years ago. But, until now, the problem about in Mars meteorite there are life or not still the mystery.


Mars



The next frontier, Mars already become a target to hunter the life in out of earth, but the view like arid and barren already divert the our attention from find the little boy in the green Mars for find the shape of ordinary life.
But, there is the evidence that Mars Planet has last warmer and wetter : the dry river bed, ice in pole, volcano and mineral was found. In 2008, Phoenix Mars Lander sent again the photo from ice chunks that was found after scoop hanfull of land, the big discovery in looking for water-main material for life. The next evidence : NASA's scientist detect there are methane in Mars atmosfer that show this planet still alive.


Enceladus



When Cassini do fly-by through one of geyser Enceladus spout ice and gas in 2005, probe detected carbon, nitrogen and oxygen – all key element for support life. Temperature and density can show source, warm water under surface. But, there is a life already confirmed.
Shape life of Extremophile was found in bottom hot earth of ventilation and ice in north pole when there are not sun ray achieve hope of scientist give possibility that microbe that same can life in Enceladus.


Titan



The scientist look more near in moon this Saturn and found blog of building more and more potentially life that very basic in there, although the temperature of surface in Titan more than 300 degrees Fahrenheit.

Saturday, April 6, 2013

Where Is The Alien?

Will such an exchange ever take place? Why haven’t we met an aliens yet? Are we likely to? I did some reading, and found these three perspectives interesting:

(1) Nick Bostrom


intelligent life will develop eventually. So why haven’t we encountered any aliens? Bostrom describes the Great Filter (attributed to Robin Hanson, who is really responsible for most of these ideas): Either the right conditions are so extraordinarily rare that we are basically alone, or plenty of intelligent life has evolved but it destroyed itself before it had a chance to contact us.

There seems like a lot of room in between these two extremes--extraterrestrials that are hiding, undetected in a distant galaxy--but Bostrom argues that a vast time scale makes this intermediate possibility much less likely. That is, once you have intelligent life, time is short before it begins broadcasting its presence, colonizing via self-replicating robots. Does this seem far off for our own civilization? Well what about in a million years?

Perhaps the Great Filter is behind us: the conditions required for the evolution of intelligent life are so rare that of 125 billion galaxies and 6x1018 stars with orbiting planets, none besides us managed it in the last 13 billion years. There is considerable speculation about how this could be, but less focus on the other possibility: the Filter is ahead of us. Somehow, all intelligent life finds its way down one dramatically destructive dead end. Nuclear annihilation? Induced black hole? Destructive artificial intelligence?

Bostrom avoids taking sides. Rather, he points out that the longer we go without bumping into any aliens, the more reason to be optimistic that the Filter is behind us. So while most people would be excited about the discovery of life on Mars, Bostrom would be upset: life is not so rare after all; it just destroys itself quickly, and there’s no reason to think we will avoid this fate.


(2) Francis Crick


Francis Crick suggested that life may have originated on Earth through “Directed Panspermia”. That is, seeds of life were spread to various planets by an advanced civilization that faced catastrophic destruction, or perhaps as part of a farming experiment. The seeds--particularly robust microbes, for example--might be attached to meteors or set afloat on solar sails aimed at newly forming stars. Directed Panspermia bypasses the Great Filter: we don’t need to explain the probability of life evolving on Earth relative to other planets because it didn’t happen organically.


(3) Geoffrey Miller


Recent data suggests that the Great Filter is not behind us. Many scientists think there’s a good chance the Universe has plenty of intelligent life. And exponential colonization seems reasonable given enough time. So where is everybody? This perspective is known as Fermi’s Paradox (after Enrico Fermi). Miller suggests that the radio silence is not the result of anything so dramatic as nuclear annihilation. Rather, the culprit is a gradual but inexorable addiction to video games as engineering of artificial stimuli surpasses natural pleasures. In deference to religious fundamentalists the world over, Miller calls this the Great Temptation.