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The Third Law Of Newtonian Physics
史雄伟 2018-5-7 20:51
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 ...
1716 次阅读|没有评论
Learning Language
史雄伟 2018-4-30 15:10
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 ...
1891 次阅读|没有评论
Classical Second Law of Motion
史雄伟 2018-4-29 21:48
Can you prove Newton's second law of motion? Do you find any problem of it? Good luck!
1108 次阅读|没有评论
Second Law of Thermodynamics
史雄伟 2018-4-29 21:43
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.
1410 次阅读|没有评论
Second Law of Planetary Movement
史雄伟 2018-4-29 21:26
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?
1429 次阅读|没有评论
Learning Language
史雄伟 2018-4-29 16:21
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 ...
1480 次阅读|1 个评论
3 X + 1 Proof
史雄伟 2018-3-11 11:46
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 ...
1254 次阅读|没有评论
Enthalpy
史雄伟 2018-2-25 19:32
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 ...
1375 次阅读|没有评论
Entropy
史雄伟 2018-2-22 16:04
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 ...
1175 次阅读|没有评论
Final Step In Proof Of 3 X + 1 Continued
史雄伟 2017-4-30 18:14
The Unrepeatable Function The unrepeatable function is NRF (P) = { 3 ^ (a - 1) + 3 ^ (a - 2) x 2 ^ r (1) + 3 ^ (a - 3) x 2 ^ r (1) x 2 ^ r (2) + ..... + + ..... + + } / { - 3 ^ a } where a is an integer for the munber of 3 X + 1 advance operations, ...
1428 次阅读|没有评论

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