Thursday, February 23, 2012

Extrasolar planets

Extrasolar planets are planets not found from our solar system in other words outside of our solar system. Recently astronomers have been finding more and more extrasolar planets and news of these planets appear once in a while. 


To introduce about extrasolar planets one important word we must know is eclipses. A common misunderstanding is that eclipses are only solar or luna eclipse. However, many phenomena are classified as eclipses rather than just the aforementioned occurrences. The proper definition of eclipse is  'The passage of one celestial body in front of another, cutting off the light from the second body'.

Extrasolar planets are difficult to find due to their distance, and the fact that the star they orbit tend to conceal the planets due to their sheer brightness and size relative to the planet. Quoted from a documentary 'The universe' in (discover channel or was it history channel) its like finding a flee in front of a headlight. However, it is possible to find it when an eclipse occurs. When a planet's orbit is positioned exactly at the astronomer's vantage point, a slight drop in the brightness of the sun at a specific point can be detected which suggests that a crossing planet is blocking out part of the sun where it is currently at as it travels. Of course there are many false alarms, but this method can enable astronomers to determine the size of the planets. Sadly most of the planets that are detected are huge gas planets which are big enough to cause a drop in brightness of us to detect.

Definition of eclipse: http://space.about.com/od/glossaries/g/eclipse.htm

Saturday, February 18, 2012

When I was asked for what I believe to be the 5 most important values and qualities in life, my response was a far cry from what others of my class had presented. Many placed the need for wealth and power above all else. Others chose friendship and love. Most included 'family ties'. Indeed my 5 values, courage, freedom, respect, challenge and intelligence succeeded in raising an eyebrow among my peers.

Nevertheless I hold true to my believes. I hope for the development of humanity and not as an individual. Those who treasure aspects that concerns only themselves and their family are selfish thinkers indeed.

Conflicts, oppression, corruption. Could they be reduced if society cherishes mutual respect for each other? When one respects another would they impose their ideologies onto another? Would they obtain things that belong to others forcefully? Surely military adventurism would not even be considered. History taught us many things. Hundreds of years of colonisation that causes an uneven level of development would not occur and  plague the world as severely as it is today. Why would anyone consciously emphasis the need to treasure ties of kinship if people are born attuned to treating friends and family with respect? Respect on its own constitutes a part of what we call love. Perhaps if one adheres strictly to practicing the act of respecting one another, things would turn out better today.

Yet when respect becomes part and parcel of everyday life in every individual, perhaps freedom could be achieved. Freedom for one to choose his or her path in their lives. Allowing one to develop their forte and their talents, learning about life and carving beautiful memories of their own the way they want it to be. Being able to live their lives rather than to survive and also contribute to the world and improve it as they go along.

Still, the troubles which plague society does not solely arrive from doings of mankind today. Indeed diseases and natural disasters ravage humanity uncontrollably from time to time which mutual respect and freedom in individuals could not remedy. These would pose as challenges for mankind, challenges that would be the drive for mankind to excel. The world had done much to overcome challenges throughout history, with much breakthroughs that pushes the boundaries of humankind. Yet many of us had not grown to take challenge as a drive but perceives it negatively while ironically see stress as the push factor for themselves to excel. Without challenge civilisations would not improve, history itself would be mundane without historical breakthroughs and many great leaders and thinkers would not surface at all.

Historical figures arrive form time to time because of courage to pursue their goals and to solve their problems that plague them. Indeed courage become one of my most important values as a man with all the freedom to work and ponder about the world cannot achieve breakthrough without first working on the dreams. Courage is the most direct and yet vital factor in driving a man to achieving what he hopes to achieve. With respect that leads to freedom for mankind, and courage that enables man to begin tackling challenges, the world would progress as the most innovative of animal species reveal just how much life can go in the universe, but not without one key element that places us among the most innovative and leading specie of animal in the world today.  

Intelligence. The one thing we possess more than any other animal on Earth would be the main fuel to drive mankind to greatness. Courage to solve problems would mean nothing without intelligence to go about solving them. Intelligence had propelled us to this day and it would remain as a key factor we must cherish knowingly.  It may seem as a load of gibberish talk about mankind and greatness, but mankind itself comprises of billions of individuals, us.

Could a brain perform its functions if the brain cells began shutting down in large numbers? If we lose our direction, we, too, would begin to shut down.  

Lacking examples but this is all I could elaborate in 1 hour's worth of time.

Wednesday, February 8, 2012

Start of my real college life tomorrow, after a week of orientation camp. Hectic life awaits.

Saturday, February 4, 2012

Confusing world of Anthropology

I've always had a keen interest in Anthropology. 
http://www.youtube.com/watch?v=crwPkPWcqBY
I was compelled to share this link after watching the video of an old BBC documentary ''walking with beasts''. This episode, talks about the Australopithecus as our ancestor around 3.5 million years ago. This video is pretty old.
Anyway,it is believed that Australopithecus is the species that led to the evolution of the 'homo' genus, that they gave rise to modern humans(homo sapiens sapiens) and our closely related species such as Neanderthals(homo sapiens neanderthal). I would not touch on this topic as of now, but I will leave some interesting facts behind. Ps: Its not really related to the show.
1: A famous fossil specimen nick named 'Lucy' belongs to this specie.
2: The last Human-Chimpanzee ancestor is predicted to have lived 5-6.3 million years ago.
3: Modern humans inter-bred with at least Denisovans and Neanderthals.
4: Yet a newly discovered  hominid specie the Sahelanthropus tchadensis is 7 million years old. Anthropologists are deciding if it is a common ancestor of humans and chimps. If it is not, things would get alot more complicated.
More on Australopithecus: http://humanorigins.si.edu/evidence/human-fossils/species/australopithecus-afarensis