Thursday 17 May 2012

AN ENDLESS SCIENCE

Are you still struggling to reconcile the disparity between Darwin’s evolution theory and the Divine Creation? Perhaps most of us are recurrently, mystified about the feasibility of time travel and time machines. How about the existence of parallel universes, do you find it amazing or rather irrational? Still interested around alien invasion or you may be more engrossed reflecting the issues of global warming and its menace that we are already living through. Plus, the revolution of technology that has affected every single aspect of our life, we may continue to ask these questions: Why do we have to learn Science? Is there an end to Science?

Wednesday 16 May 2012

RISE AND FALL OF STARS

Physics is so dear to me, although many students and science teachers alike do not feel good with it. To some, it is boring and full of Maths. Others just do not find it attractive to their intellect, I should say.  But to me, it is full of wonders and an endless chain of discoveries. One of my favourite topics in this field is Space and the Universe.  It appeals to me differently because I feel like watching a movie and doing some reflection at the same time.

Just like the stars that we glimpse in the sky on quite nights, they are full of excitement. They are part of the history that unfolds before our senses, because the stars that you see were actually there many years ago. Stars are light years away from the Earth, and so it would take years for its emitted light to reach us. A light year is a distance that light can travel in one year.  If a ray of light travels in a vacuum in approximately 3x108 m/s, the ray of the sun which distance from the Earth is approximately 150 million kilometres could reach the Earth in eight minutes, how much more for distant stars?
They are simply stars, but it is fascinating to learn that they have a life cycle. And the process is extremely long, explosive, but amazing.  Like us, they are born, they live, and will eventually die.

Tuesday 24 May 2011

ROCKS OF THE EARTH

Materials like chairs, woods, carpets, clothes, glass, metals amongst others; are materials found in or on the Earth. Chemical reactions helped manufacturers to make these raw materials become useful, attractive, and durable. The earth’s crust provides abundant amount of minerals, rocks, and fossil fuels. A mineral is a single substance, which has a chemical name and formula. A rock is a mixture of different minerals. Examples of minerals are limestone and rock salts. Their purest from are called calcium carbonate (CaCo3) and Sodium Chloride ( NaCl), respectively.


It is believed that when the Earth cooled down millions of years after the birth of the solar system, its molten crust solidified into igneous rocks. Over millions of years, the geological