博文
- The First Law Of Newtonian Physics
- The first law of Newtonian Physics, the inertial law of motion, can be inferred from the second law, therefore it is not a law by itself.
- The Third Law Of Newtonian Physics
- The third law of Newtonian Physics is the law of action reaction forces. In inertial frame of references, it can be proved that it is a pair of forces in opposite direction with the same magnitude, the only difference is the direction, they appear and disappear at the same times. In practic ...
- Learning Language
- Reading comprehension is the most difficult part of all language skills. Although I can pass most language tests with perfect scores, I still feel not the same easiness when I use foreign language as when I use chinese. This is why I can go through almost all of the sources of chinese media ...
- Classical Second Law of Motion
- Can you prove Newton's second law of motion? Do you find any problem of it? Good luck!
- Second Law of Thermodynamics
- If you are interested, you may find that second law of thermodynamics has exception that can not be repared. There are many problems in physics that you will find if you are careful.
- Second Law of Planetary Movement
- Those of you interested in physics can have a look at the Kepler's second law of planetary movement. Unlike his first and third laws of planetary movement, which have some minor problems, his second law has serious problems that actually make it invalid. Can you identify them?
- Learning Language
- In order to improve the reading skill of language comprehension, I usually keep an average of one article per day, so some time less some time more. The titles of the articles are all from public sources of general knowledges, so there is no question of invasion of private rights. Just li ...
- 3 X + 1 Proof
- As you can see from previous discussion: 1, No matter how many steps you go through, you will never repeat any number you have used. So you also avoid going through infinite loop; 2. Throughout the whole positive integer axis, the return rate or &nbs ...
- Enthalpy
- Last time, I wrote about entropy. There is another physical concept in thermodynamics: the Enthalpy, which defined as Enthalpy = Energy + V x P where V is volume, P is presure. These two concepts are very useful in thermodynami ...
- Entropy
- Entropy is a concept introduced when dealing with heat (engine) problem. It is closely related to energy but not conserved. The thermodynamic laws 2 and 3 are concerned with entropy. Entropy is not yet scientifically matured, some disciplines have their own definitions, so using it carel ...
