week 8 assignments

Newton's 3 laws and me

Newton's the first law: I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
In my case, I would like to stay at my bed in the morning keeping my sweet dream as well as reluctantly mind to go to bed at night watching T.V. or surfing the Internet.

Newton's the second law: II. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.
I have learned how to cure the disease which is the kind of visitor not predator from Korean experienced doctor.
For curing the patients, we need to understand about the Newton's 2 law which is similar to act to push the evil qi out of body. Slowly started then push hard, mild cure then strong medicine.

Newton's the third law: III. For every action there is an equal and opposite reaction.
We seem to be well understood about that law in bacterial reaction when we use antibacterial medicine.


Our "Energy Efficient" culture

Just 200 years ago, people are very happy and thank to Westerns industrial revolution. But, now we are starting to be longed for the life before too much industrialized society.
We go to market with reusable bag instead of using plastic bag by walk or bicycle instead of driving 4 by 4 giant car. It is just realized on the countries post experienced wasting energy, but the developing countries are still requested to be more industrial and comfortable life using more and more energy.


Descartes has a lot to answer for!

I think, therefore I am.
If I don't think, then I am not? ... you are?
His answer is very clear and quick even before others do not get to the point. His idea and his answer are not hesitant.