I'm back at this ghostly hour just to blog another entry. Life at MacPherson finally ends and is now time to do greater things in my life. Thinking back, this 2 years at the campus passed really fast. I can still remember the time when i first went in the class which is MMT1R that time. It had since changed to MMT2X since year 2. I still remembers the time i had with my first class advisor, Ms zhao followed by Mr Ajay. My current class advisor, Ms Ho, she really sucks lor. Speaking of her, she sent the Examination Letter to my house and told me i still can handed it up on monday yet on the friday, she called just to kaopei say today last day or whatever crap. Ok since she insisted that last friday was the last day, fine i go back to MacPherson to hand the letter to her. Want to know what is the best thing? I still saw people handing up the form on monday. What the fack is this? Even if she dislike me, she had no power to do this even if she is a teacher.
Few days ago, a friend once asked me what does godbro-godsis meant to me? You know what i think? I think they are outdated stuff that belongs to my father generation. It's true that people from the olden generation thinks of it very seriously but now it's just some antic used to woo member of the opposite sex. I know of people who used this antic just to get close to the other half and there are some "success story" over it. This is why i don't believe in this godbro-godsis thing. I had this view because i was once offered by a person named Gloria to become her godbro. It's kind of embarassing saying this, as Gloria actually offered her body to me provided i buy whatever things she wanted for her. Kaoz, this would make me her pimpdaddy instead of "godbro". From that incident onward, i told myself that i really don't want myself to be involved in this thing. Anyway, hopefully i had not offended anyone by saying this as i'm just trying to be frank afterall. I apologised to whoever was offended.
From reading Valerie's blog, i came to known that i was called "Teddy Bear" by one of colleague. How this say, but i think i don't like the sound of it at all. Actually i'm not sure what i'm feeling but it's definately not a positive ones. Just like Pele disliking his famous nickname, i really disliked being called teddy bear. The funny thing is that that person that started this teddy bear thing don't even know me. I can't even remember how she looks like or rather i don't even see her before. This is what amazed me alot, maybe she really disliked how i looked like or something more personal, the reason she might only know it herself. Well call me xiao qi or whatever you want but i will not changed my view of being called a names that i don't like.
Not sure why but i really had a stomach of fire when typing this post. Maybe because there are something that i do not want to made known to everyone of you as it involved my personal life. And the whole Ms Ho thingy just made me even more angry all the time. Maybe my biopolar disorder is coming back or what.... it's just that i'm not feeling myself. It's like my inner demon trying to call my name and influencing my thoughts. I guess this post is for me to rant about my feelings.
Recently i had been reading alot about human and the world's evolution maybe i would share abit of it with you guys.
Our planets and solar system were formed when those remnants of a nebula that don't condensed from the gravity of the protostar. Instead, these remnants become a thin disc of dust and gas revolving around the protostar and begin to condense about local concentrations of mass within the disc. These concentrations become ever more dense until they collapse inward under gravity to form protoplanets. When the protostar has grown such that it ignites to form a star, its solar wind blows away most of the disc's remaining material. Thereafter there still may be many protoplanets orbiting the star or each other, but over time many will collide, either to form a single larger planet or release material for other larger protoplanets or planets to absorb. Meanwhile, protoplanets that have avoided collisions may become moons of larger planets.
Like the other planets in the Solar System, the Earth and Mars are thought to have condensed about 4.6 billion years ago from the solar nebula, a giant cloud of hot gas swirling around the young Sun. The evolution of the two planetary neighbours has been driven ever since by the loss of heat produced by radioactive decay within their interiors. To me, Mars is an attractive planet because many of the processes that happened on Earth, happened there as well.
The two planets share many similarities - both have hard crusts, dense cores and are made from the same materials, though in different proportions - but they are also very different. Today, Earth is a dynamic place, teeming with life. Mars is relatively static and lifeless - although it's just possible that primitive life exists below the surface.
It is not surprising that the evolution of the two planets has resulted in these very different outcomes. Mars is one and a half times as far away from the Sun as Earth: it's also much smaller. Mars is only one tenth the mass of Earth, which means it has lower gravity and lower pressures. It's not surprising that it lost a lot of volatiles - atmospheric gases and water - through impacts and high energy processes early on. Because of its smaller size, Mars has also cooled more rapidly than Earth which accounts for its present relatively static state.
The Earth's surface is still continually changing. Plate tectonics is one of the major forces that sees to that(eg. Earthquake, Volcano Eruption etc). New crust forms at seafloor spreading vents and old crust is swallowed up into the Earth's interior at subduction zones. Plate tectonics may have played a role in shaping the Martian surface during the planet's first 500 million years, but large parts of the Martian crust have been undisturbed by such major transforming forces. The lack of plate tectonics on Mars limited the planet's ability to recycle material. Four billion year old rocks are fairly common there.
Most of the southern hemisphere of Mars consists of such ancient crust. (Only small isolated pockets of 4 billion-year-old rocks still exist on Earth.) Planetologists date the surface of rocky planets from the number, size and degradation of impact craters: the higher the density of craters the older the crust. The southern crust of Mars is scarred by many impacts, indicating that it has not been reformed since the impacts were made. On the edges of this ancient crust are the largest volcanoes in the Solar System. Their great size suggests that they have been allowed to grow for billions of years undisturbed by major crustal recycling. The northern crust of Mars is far less scarred than in the south, suggesting a younger age. The processes that formed this young, lowland region, but left the south undisturbed.
Water has also played a major role in shaping Mars, just as it has on Earth. But whereas two thirds of the Earth's surface is still covered by water, there's no liquid water on the Martian surface today. Features resembling ancient river valleys, lake beds and glacial deposits suggest that water did once flow freely on Mars, but more than 3.8 billion years ago. It disappeared relatively suddenly, but no-one knows where or how. The Earth's magnetic field protects the atmosphere from the eroding effects of the solar wind. Mars has no global magnetic field, so the atmosphere is prey to the continuous stream of charged particles flying out from the Sun. The lack of a magnetic field suggests that the circulation of molten iron in the planet's core is too sluggish to generate a dynamo. But recent observations by NASA's Mars Global Surveyor spacecraft have revealed evidence for a powerful magnetic field in the first few million years of Mars's history. What turned off the magnetic field will always be a mystery as we can only speculated. So three of the major processes that have shaped the Earth's environment - plate tectonics, a global magnetic field and flowing water - may also have shaped that of Mars. But they did so early in the planet's history. For 3.8 billion years or so, they have had little, if any effect. And this are the reasons why Mars does not have any living things despite being billed as Earth's sister planet. Now i'm going to explain how Life on Earth started.
Life started when a comet most probably from Mars fell onto Earth billions of years ago. The most primitive life that most scientist and astronomers identified is the archeobacteria which also include bacteria that cannot live in an oxygen atmosphere and that use methane to produce energy. That means there was an abundant source of methane in the early earth environment just like Titan, one of Saturn's moon. Coz when looking at the Titan now, we are looking at the best model of Earth in it's early stages. There is no indication that methane was ever a constituent of any martian atmosphere. Given what we know about organosynthesis, it is far more likely to me that life could have appeared independently on two planets rather than sprung from a common source.
However the archeobacteria that inhabited Earth in the Precambrium produced oxygen as a waste gas and so helped establish an aerobic ecosystem.They grew in shallow sea water where they formed mats, and used incoming sunlight for photosynthesis. When such a bacterial mat was covered by mud or sand, light could no longer penetrate and the organisms died. A new mat could form on top of this, and the fossilized buildup of millions of layers resulted in the formation of Stromatolites, which can be seen to this day.
There are three major known groups within the Archaebacteria: methanogens, halophiles, and thermophiles. The methanogens are anaerobic bacteria that produce methane. They are found in sewage treatment plants, bogs, and the intestinal tracts of ruminants. Ancient methanogens are the source of natural gas. Halophiles are bacteria that thrive in high salt concentrations such as those found in salt lakes or pools of sea water. Thermophiles are the heat-loving bacteria found near hydrothermal vents and hot springs.
The presence of Archaea and Bacteria changed Earth dramatically. They helped establish a stable atmosphere, and produced oxygen is such quantities that eventually life forms could evolve that needed oxygen in stead of producing it. The new atmospheric conditions calmed the weather so that the extremes were less severe. Life had created the conditions for new life to be formed. It is one of the great wonders of Nature that this could take place.
So, if any It is also possible that if there is any life on Earth billion of years ago, it could have gotten there from Mars by the same meteoritic impact and hitch hiking process. Some scientists still think it is possible that much of the organic processing that led to life on Earth happened off-Earth, and this could include even the partial assembly of DNA material. Lastly, Planetary surfaces are far more stable and hospitable places for stitching together large molecules than the surfaces of dust grains, small asteroids and comets.
Phew after typing such a long entry, my fingers really felt tired.
