About cheng Ning old gentleman on January 17 video viewpoint a few points discuss

2022-05-18 0 By

About Mr. Cheng Ning January 17 video point of view a few points to discuss a month ago to see Mr. Cheng Ning electromagnetic hammer hit the same float with different eyes of the experiment video.I think there are so many fallacies that I need to elaborate on them.However, I have been busy with many things in the past month, so I would like to talk about them today.I look at others, including famous masters, and their fishing articles and videos are very few.This is because I saw a few eight or nine years ago and found too many illogical and illogical things to figure out for myself.)One, the most essential point, drift has no Lyndon nature.(See “Principle of Floating without Rington and sensitivity of fishing group” article, this is not repeated).Therefore, all words and this drift spirit that drift ton, are not scientific.So, for the same drift, and it is no basis for higher spirit or lower spirit.(See my “fishing tune li Piao, tune eight, tune seven, tune six, tune five and tune four what is the difference?””).Second, low speed motion satisfies Newton’s law.For the same piece of drift, the lower set of drift lead used more, the total weight of fishing group (total weight of drift lead) is large.The higher one uses less lead and the total mass is smaller.Under the same force, the lower mass will travel faster and farther, or in fishing parlance, “spirit.”Therefore, Mr. Cheng Ning’s conclusion of “lowering spirit” does not conform to Newton’s law and must be wrong.(Although I was in the “fishing tune lipiao, tune eight, tune seven, tune six, tune five and tune four what’s the difference?”According to the detailed analysis and calculation, just a few eye adjustments have little effect on the fishing sensitivity, but at least it must satisfy the law of Newton’s law.Third, about scientific experiments.For an experiment, the purpose of the experiment should be clear.Experimental design and implementation should be based on and targeted.Simply put, if you are analyzing one of the factors of a multifactorial thing, you must ensure that only this one factor is variable, and the other factors must remain constant.Let me give you an example.If you want to experiment the difference of the sliding time of the incline object with different incline slope, you must ensure that the incline is smooth enough, the drop of the incline is the same (you can’t use a board to raise one end of the incline to change the height, that is to add another variable), and even the wind speed in the experiment should be the same.For the specific experiment of Mr. Cheng Ning, see Figure 1.Figure 1 shows two identical floats with different eyes and different amounts of lead.According to the simple mechanical equilibrium (buoyancy law), the difference Q1 of the amount of lead used is equal to the water weight of the volume of the floating tail within the range of adjustment.V1ρ water = Q1.What is the difference between the forces needed to hold two floats underwater to rest?As shown in figure 2.So the difference in the force required is also the difference in the amount of lead used.Namely: F1-F2 = V1ρ water = Q1 if the press (knock) force is greater than F1, then the drift in the underwater movement of a distance, and under the action of buoyancy and water resistance, is Mr. Cheng Ning’s experiment.As mentioned earlier, for multi-factor experiments, you need to make sure that there is only one variable.In Mr. Cheng Ning’s experiment, the forces of the two drifts were completely different, and the difference was the amount of lead used Q1.That is why he came to the wrong conclusion.To put it simply, the “extra” buoyancy of the floating body in the range of eye adjustment makes the forces of the two floating bodies different after entering the water, then the subsequent motion is not the “same force” experiment, and the “law” obtained is not credible.So, for fishing, specific to the question of high or low spirit, how to design a scientific and reasonable experiment?As shown in figure 3.Or the two same float, press (knock) force is not so big, to ensure that the drift eye will not fall into the water, then, under the action of the same force, buoyancy increment is the same, the fishing group is the same force, the experimental results are useful and reliable for anglers to check the length and speed of the floating phase of the fish mouth.Figure 3 only lowers the drift by 1 mesh.The contrast may not be obvious.Consider a 12 mesh one, a 6 mesh one, press (knock) to drop the drift less than 6 mesh.(Due to inertia, the force applied to the floating body will be cancelled after a period of time, and the floating body will travel for some distance, so the real applied force is less than the buoyancy increment of 3 mesh volume.See “Fishing group movement sensitivity” article.)How much force can be applied? Take a drift of 1 mm in diameter and 1 cm in length.The volume of the drifting tail ichimu is 3.14* (0.1/2) square *1 = 0.00785 square cm.According to the 0.008 meter.The buoyancy increment of floating tail 3 is 3*0.008*1 = 0.024g.That is, this little force is enough.And some of them are busy.I would like to emphasize that I quite appreciate Mr. Cheng Ning’s spirit and achievements in fishing theory, and I write this article just for communication, in order to find the truth and benefit my fishing friends.