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物理の勉強掲示板(スレッド一覧)
Selected Posts on Anti-Relativity - 物理の勉強掲示板

Selected Posts on Anti-Relativity


0nakayama 2023/02/18 09:14  4079view
Michelson-Morley Experiment

It (done in air) is nonsense. In air, light is propagated at c/n. So, the result of M-M experiment (done in air) is only natural.

In a book "Theory of Relativity" by Pauli, W 1958, it's written as follows (quoted from English version ; in 1-6). "Rather should one say that for an observer moving with medium, light is propagated as usual with velocity c/n in all directions".
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物理の勉強掲示板(スレッド一覧)
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55中山 2023/06/26 14:19
"Gavitational Acceleration"

If magnitude of vector of gravity and another force (e.g. tension) is the same, body will show the same vector of acceleration. On idiom (compound word) "gravitational acceleration", sense of incongruity cannot be wiped out.

Idiom "gravitational acceleration" seems to be meaningful only in limited situationon. Free fall, gravity at the surface of Earth, etc. Is it an idiom of physics ?

If gravity and inertial force are different things, gravity and acceleration are also different things. Will there be qualification of idiom ?
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56中山 2023/06/28 10:38
Inertial Force is not Fictitious

Gravity acts on a body as a vector. At a local area in free falling elevator, vector of gravity and vector of inertial force (vector of action, not of existence) will cancel each other. In that case, inertial force will not be fictitious.
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57中山 2023/07/01 16:22
Gravitational Acceleration

Well, "gravitational acceleration" is "magnitude of gravity on the surface of Earth ?" said an Alien
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58中山 2023/07/03 11:24
Centrifugal Force is not Fictitious

The same four spheres, connected to the ends of two rods are rotating on a plane (no friction). Asuume the bar as a cross and the whole as a disk. At any point on the rod, magnitudes of the centrifugal force and centripetal force are equal, as shown by Newton's third law of motion. That is, centrifugal force (and centripetal also) is not fictitious to an observer in any frame.
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59中山 2023/07/03 11:44
Additional to 58

Original text of the third low is said, it is not on two bodies, but on every point of action of force.
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60中山 2023/07/04 09:54
Inertial Resistance/Inertial Force

A mass point is placed in aether frame, but when it is forced to move other than uniform linear motion (including zero speed) relative to aether frame, it shows resistance called inertial resistance. Inertial resistance is commonly said to be inertial force. Inertial force will correspond to motion of the mass in aether frame, qualitatively, quantitatively.
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61中山 2023/07/04 14:27
Centrifugal Force is not Fictitious

Allow me to alter some of previous post. Previous setting was four spheres and two rods. Now,on two spheres and one rod (in X direction only), mass is two times (without deflection). Then,at close to the center, magnitude of centrifugal force and centripetal force will be about two times. Also, magnitude of centrifugal force and centripetal force will correspond to rotational speed.
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62中山 2023/07/05 10:18
Centrifugal Force is not Fictitious

About centrifugal force, allow me to post onece more. A disk and the same ten spheres (evenly spaced around the disk) are rotating on a plane (no friction). Spheres and outer edge of the disk are connected with strings of the same length. Each string will show the same tension. Tension will be a sign that centrifugal force is not fictitious.
Note) Centrifugal force and centripetal force will work on the string (on every point) as Newton's third law of motion.
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63中山 2023/07/07 08:29
Speed of Gravity Propagation

Speed of gravity propagation is said to be the same to speed of light. But is it true ? Something can't be found in thought experiments ? How about Sun and Mercury ? Solar system is said to move in the direction called sun facing point (on the celestial sphere). So position from which gravitational force of Sun acting Mercury will be the position some back in time. If so, this effect will slightly acuumlate (like free falling).

In Encyclopaedia Britannica 1969, there is a passage as follows (in item "Gravitation" ; original text). "If the action of gravitation were not absolutely instantaneous"(omission)"All experiments and observations were, however, consistent with the law, from the short distances employed in laboratory experiments to the long ranges used in interplanetary calculations". It says, action will be instantaneous.
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64中山 2023/07/12 11:29
Speed of Light

This is supplement to the former post 1 (Speed of Light). Half of measurement results of speed of light waves will exceed c.
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65中山 2023/07/18 09:55
Newton's Three Laws of Motion

Uniform linear motion (ether can be emerged in an optical way), uniform circular motion, inertial force, action and reaction are all existence graspable qualitatively and quantitatively. These are not fictitious.
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66中山 2023/07/27 09:12
Spherical Shell Theorem (correction)

In my previous post (15), Mercury is divided into two spheres. But this thought experiment doesn't seem to hold. Surprising ! It does not disprove Newton's spherical shell theorem. So, my hope is shifted in another thought experiment on centrifugal force.
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67中山 2023/07/28 08:01
Newton’s Spherical Shell Theorem (supplement)  

◎ But this thought experiment (see 15) doesn’t seem to explain perihelion shift of Mercury. Because, m/49^2 + m/51^2 = 2m/50^2. Surprising !
◎ Another thought experiment is on centrifugal force (see also 15).
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68中山 2023/08/05 11:20
Perihelion Shift of Mercury (rewrittn)

In a figure, Mercury is drown as a circle. Plus, the figure shows the center of the circle and an arc extending upward and downward through the center (that is a part of orbit). Tne arc divides Mercury into left and right, and the area is left > right. This figure will show that actual magnitude of centrifugal force exceeds that calculated for Mercury as a point (see formula of centrifugal force). Perihelion shift of Mercury may be due to Mercury's size.
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69中山 2023/08/22 11:30
Decelerated Motion

Constant tension is acting on a rope extending from a passenger car to the left, and passenger car is decelerating. Even if the ground speed of passenger car becomes zero due to deceleration, tension of the rope is constant. So passenger car starts accelerating to the left. But, there will be no difference in situation in before and after of passenger car. And, there will be no point significant in the ground speed of passenger car.
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70中山 2023/09/07 11:46
Peliherion Shift of Mercury

Moon is said to be moving away from Earth by several centimeters per year. I proposed formally (in 68), size of orbiting celestial body increases its centrifugal force (compared to calculated as a point). And so, it moves forward the long axis of elliptical orbit, and also it increases the length of long axis a little ? Is Mercury moving away from Sun too ?
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71中山 2023/09/08 15:02
Decelerated Motion

As written in 69, everything is accelerated motion and decelerated motion does not exist. But “counter-jerk motion” where degree of accelerated motion withdrawing may be possible.
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72中山 2023/09/16 10:53
Perihelion Shift of Mercury

Size of Mercury will increase gravity and increase centrifugal force quolitatively also. Of the two, gravity is probably the main factor. Because, increase in gravity shift aphelion in the direction of revolution. On the other hand, increase in centrifugal force shift aphelion in the opposite direction of revolution.

The formula for gravity, F = mM/r^2, probably shows that magnitude of gravity is related to the size of Mercury (but surprisingly small).
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73中山 2023/09/17 13:44
Perihelion Shift of Mercury

There is one more problem. Size of Mercury receives surplus force. But where does this surplus force go ?

In figure of perihelion shift of Mercury,its destination seems not to be found. Ah, perhaps the same phenomenon as Moon's retreat (Moon's orbit is expanding) will be destination. This surplus force probably turns and expands Mercury's elliptical orbit each time.
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76名前を書き忘れた受験生 2023/09/22 17:44
月の裏側ってどうなってると思いますか?
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77名前を書き忘れた受験生 2023/09/23 05:49
https://forbesjapan.com/articles/detail/64568
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78中山 2023/09/23 12:57
Perihelion Shift of Mercury (rewritten, from my post, posted on Sep 16 or around)

There is a figure of Mercury and its orbit. Mercury is drawn as a single point. But actually, Mercury has a size, and this size will slightly increase magnitude of gravity and centrifugal force of Mercury. Now, limit our consideration to half of orbit from perihelion to aphelion. Increase in gravity will shift aphelion in the direction of revolution. On the other hand, increase in centrifugal force will shift aphelion in the opposite direction of revolution. In increase, gravity will exceed.
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79中山 2023/09/25 15:33
Perihelion Shift of Mercury (supplement)

Size of Mercury will cause the difference in its gravity and in its orbit. It will rotate long axis and shift perihelion (in the direction of revolution).

But, will size of Mercury cause difference in its centrifugal force ? This difference probably correspond to the difference in motion that is caused by difference in gravity.
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80名前を書き忘れた受験生 2023/09/25 16:15
英語バージョン!
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81中山 2023/09/28 12:55
Perihelion Shift of Mercury (supplement)

About this ploblem, some posts remain unsure are posted. Below is one of them.

Size of Mercury seems to increase its gravity slightly and increase its centrifugal force slightly also. And, in magnitude, gravity seems to exceed. If this is true, what does it have to do with Newton's third law of motion? I throw up my hands.
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82中山 2023/09/29 11:26
Perihelion Shift of Mercury (estimate)

Size of Mercury will increase Mercury's gravity. The main result will be slight expansion of orbit, and followed by shift in perihelion. Therefore, centrifugal force also increases. Newton's third law of motion will be inviolable.
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83中山 2023/10/08 10:51
Perihelion Shift of Mercury (rewritten)

Allow me to rewrite my previous post (Sep 29 and around).

Shift of perihelion is constant. Then, a doubt arises. What is momentum of Mercury ? Is it increasing ? Is it decreasing ? Is there no increase or decrease ? I'd like to hear even hypothesis.
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84中山 2023/10/17 14:29
Perihelion Shift of Mercury (estimate)

Two Mercurys are revolving. One is in the orbit of Mercury and the other is in the orbit of Venus. In the former, magnitude of shift of perihelion seems to be larger. This is probably because effect of Mercury's size is greater in the former.
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85中山 2023/10/19 07:54
Perihelion Shift of Mercury (continued)

Imagine Mercury is revolving in the orbit of Neptune. Size of Mercury seen from Sun is close to a single point. So, magnitude of perihelion shift as two-body problem will be slight. And are perturbations outstanding ?
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86中山 2023/10/23 10:54
Perihelion Shift of Mercury (supplement)

Imagine that two Mercurys are revolving in the orbit of Venus and Neptune. At two perihelions, Mercury moves in the same vector (direction and speed) as Venus and Neptune. Magnitude of Mercury's shift of perihelion will be smaller than that of the two. Because size of Mercury is smaller than that of the two.
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