Changing Climate
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11/ The Foucault pendulum deflection might be a forced rotation involving a centripetal force, without any straight inertial motion in the background. This is consistent with a Coriolis force working.
link.springer.com/article/10.1...
link.springer.com/article/10.1...
What Makes the Foucault Pendulum Move among the Stars? - Science & Education
Foucault’s pendulum exhibition in 1851 occurred in an era now known by development of the theorems of Coriolis and the formulation of dynamical meteorology by Ferrel. Yet today the behavior of the pen...
link.springer.com
November 23, 2025 at 2:25 PM
11/ The Foucault pendulum deflection might be a forced rotation involving a centripetal force, without any straight inertial motion in the background. This is consistent with a Coriolis force working.
link.springer.com/article/10.1...
link.springer.com/article/10.1...
10/ Are they really cases with a Coriolis force but without a centripetal force? Could not the Coriolis force be always the result of a centripetal force despite the says of G.Coriolis?
November 23, 2025 at 2:17 PM
10/ Are they really cases with a Coriolis force but without a centripetal force? Could not the Coriolis force be always the result of a centripetal force despite the says of G.Coriolis?
9/ If Coriolis force in geophysics is a residual of an imperfect centrifugal-centripetal balance that must be studied in the inertial frame of reference, what is such a balance?
November 23, 2025 at 2:12 PM
9/ If Coriolis force in geophysics is a residual of an imperfect centrifugal-centripetal balance that must be studied in the inertial frame of reference, what is such a balance?
8/ Does it mean that inertia is able to counter centripetal processes by responding with centrifugal processes?
November 23, 2025 at 2:07 PM
8/ Does it mean that inertia is able to counter centripetal processes by responding with centrifugal processes?
7/ The Coriolis force in geophysics is consistent with a contest between a centripetal force and a common centrifugal force
journals.ametsoc.org/view/journal...
journals.ametsoc.org/view/journal...
journals.ametsoc.org
November 23, 2025 at 2:05 PM
7/ The Coriolis force in geophysics is consistent with a contest between a centripetal force and a common centrifugal force
journals.ametsoc.org/view/journal...
journals.ametsoc.org/view/journal...
6/ We can derive the Coriolis force in the inertial frame of reference
If we smartly imagine a total centrifugal force, the inertial frame allows one to compute a vector being the anomaly of centrifugal force which acts exactly as the Coriolis force.
journals.ametsoc.org/view/journal...
If we smartly imagine a total centrifugal force, the inertial frame allows one to compute a vector being the anomaly of centrifugal force which acts exactly as the Coriolis force.
journals.ametsoc.org/view/journal...
journals.ametsoc.org
November 23, 2025 at 2:00 PM
6/ We can derive the Coriolis force in the inertial frame of reference
If we smartly imagine a total centrifugal force, the inertial frame allows one to compute a vector being the anomaly of centrifugal force which acts exactly as the Coriolis force.
journals.ametsoc.org/view/journal...
If we smartly imagine a total centrifugal force, the inertial frame allows one to compute a vector being the anomaly of centrifugal force which acts exactly as the Coriolis force.
journals.ametsoc.org/view/journal...
5/ In applied physics, the Coriolis force is always associated to a centripetal force
This induces again very serious questions about what Coriolis equations are: does it really work for any external force?
This induces again very serious questions about what Coriolis equations are: does it really work for any external force?
November 23, 2025 at 1:54 PM
5/ In applied physics, the Coriolis force is always associated to a centripetal force
This induces again very serious questions about what Coriolis equations are: does it really work for any external force?
This induces again very serious questions about what Coriolis equations are: does it really work for any external force?
4/ The Coriolis force in geophysics is associated to real forces having an oscillating work that make absolute kinetic energy oscillate
journals.ametsoc.org/view/journal...
This association induces very serious questions about what are Coriolis equations.
journals.ametsoc.org/view/journal...
This association induces very serious questions about what are Coriolis equations.
journals.ametsoc.org
November 23, 2025 at 1:50 PM
4/ The Coriolis force in geophysics is associated to real forces having an oscillating work that make absolute kinetic energy oscillate
journals.ametsoc.org/view/journal...
This association induces very serious questions about what are Coriolis equations.
journals.ametsoc.org/view/journal...
This association induces very serious questions about what are Coriolis equations.
3/ The Coriolis force does not cause wide deflection in Earth dynamics
The Coriolis force, when alone, causes quick rotation, known as inertial oscillation (a few kilometers in ocean dynamics) and it does not relate simply to the size of the fluid meanders.
The Coriolis force, when alone, causes quick rotation, known as inertial oscillation (a few kilometers in ocean dynamics) and it does not relate simply to the size of the fluid meanders.
November 23, 2025 at 1:47 PM
3/ The Coriolis force does not cause wide deflection in Earth dynamics
The Coriolis force, when alone, causes quick rotation, known as inertial oscillation (a few kilometers in ocean dynamics) and it does not relate simply to the size of the fluid meanders.
The Coriolis force, when alone, causes quick rotation, known as inertial oscillation (a few kilometers in ocean dynamics) and it does not relate simply to the size of the fluid meanders.
2/ The merry-go-round case is a bad illustration of the Coriolis force
If Coriolis equations were good, the deviation seen from the merry-go-round would be the sum of centrifugal and Coriolis forces and not the Coriolis force alone.
If Coriolis equations were good, the deviation seen from the merry-go-round would be the sum of centrifugal and Coriolis forces and not the Coriolis force alone.
November 23, 2025 at 1:41 PM
2/ The merry-go-round case is a bad illustration of the Coriolis force
If Coriolis equations were good, the deviation seen from the merry-go-round would be the sum of centrifugal and Coriolis forces and not the Coriolis force alone.
If Coriolis equations were good, the deviation seen from the merry-go-round would be the sum of centrifugal and Coriolis forces and not the Coriolis force alone.
1/ The Coriolis force does not conserve absolute velocity.
It can be proven mathematically but simple reasoning is: if the Coriolis force conserves the relative velocity, it can not conserve the absolute velocity at the same time.
journals.ametsoc.org/view/journal...
It can be proven mathematically but simple reasoning is: if the Coriolis force conserves the relative velocity, it can not conserve the absolute velocity at the same time.
journals.ametsoc.org/view/journal...
journals.ametsoc.org
November 23, 2025 at 1:36 PM
1/ The Coriolis force does not conserve absolute velocity.
It can be proven mathematically but simple reasoning is: if the Coriolis force conserves the relative velocity, it can not conserve the absolute velocity at the same time.
journals.ametsoc.org/view/journal...
It can be proven mathematically but simple reasoning is: if the Coriolis force conserves the relative velocity, it can not conserve the absolute velocity at the same time.
journals.ametsoc.org/view/journal...
Coriolis academically is due to a rotating frame of reference. A most probable theory is that you must consider a centripetal force. If you walk on or keep a contact with a rotating platform, you get the centripetal and Coriolis forces. If you fly over it, you don't feel anything.
November 23, 2025 at 1:21 PM
Coriolis academically is due to a rotating frame of reference. A most probable theory is that you must consider a centripetal force. If you walk on or keep a contact with a rotating platform, you get the centripetal and Coriolis forces. If you fly over it, you don't feel anything.
Coriolis force is still a research topic (read Anders Persson). I am convinced that only Persson's theory holds: Coriolis equations have a centripetal force in external forces. It would not work without a centripetal force. One must understand then what is a centripetal vs. centrifugal balance.
November 21, 2025 at 9:50 AM
Coriolis force is still a research topic (read Anders Persson). I am convinced that only Persson's theory holds: Coriolis equations have a centripetal force in external forces. It would not work without a centripetal force. One must understand then what is a centripetal vs. centrifugal balance.
This is not Coriolis force what you and many others are showing. Coriolis force imposes much smaller circles and does not conserve absolute velocity. Coriolis force is still a research topic even if solutions already exist in the literature and it is now up to professors to read them.
November 21, 2025 at 9:24 AM
This is not Coriolis force what you and many others are showing. Coriolis force imposes much smaller circles and does not conserve absolute velocity. Coriolis force is still a research topic even if solutions already exist in the literature and it is now up to professors to read them.
This is not Coriolis force what you and many others are showing. Coriolis force imposes much smaller circles and does not conserve absolute velocity. Coriolis force is still a research topic even if solutions already exist and it is now up to professors to read them.
November 21, 2025 at 9:21 AM
This is not Coriolis force what you and many others are showing. Coriolis force imposes much smaller circles and does not conserve absolute velocity. Coriolis force is still a research topic even if solutions already exist and it is now up to professors to read them.
Que ça plaise ou pas à l'OMS, aux médecins libéraux, aux "bobos", il faut arrêter ces idées d'air pur si on veut des solutions efficaces pour le climat.
La sécurité mondiale ne se résume pas à la médecine et à l'avis de l'OMS. Les temps changent. La planétologie doit avoir son mot à dire.
La sécurité mondiale ne se résume pas à la médecine et à l'avis de l'OMS. Les temps changent. La planétologie doit avoir son mot à dire.
October 1, 2025 at 8:20 AM
Que ça plaise ou pas à l'OMS, aux médecins libéraux, aux "bobos", il faut arrêter ces idées d'air pur si on veut des solutions efficaces pour le climat.
La sécurité mondiale ne se résume pas à la médecine et à l'avis de l'OMS. Les temps changent. La planétologie doit avoir son mot à dire.
La sécurité mondiale ne se résume pas à la médecine et à l'avis de l'OMS. Les temps changent. La planétologie doit avoir son mot à dire.
On retrouve la philosophie avancée par A. Persson pour la Terre (et pas que) : en conditions réelles, la force de Coriolis pousse "avec vigueur" à circulariser la vitesse relative, empêchant au possible une particule de s'éloigner d'un point collé à la plateforme tournante.
October 1, 2025 at 7:30 AM
On retrouve la philosophie avancée par A. Persson pour la Terre (et pas que) : en conditions réelles, la force de Coriolis pousse "avec vigueur" à circulariser la vitesse relative, empêchant au possible une particule de s'éloigner d'un point collé à la plateforme tournante.
Cette expérience est très intéressante : elle montre comment la force de Coriolis veut circulariser la vitesse relative, ce que le teneur (qui initie la vitesse relative) a beaucoup de mal à empêcher, ce qui est dans le référentiel tournant une vraie force.
youtu.be/78Yymgk6qrM?...
youtu.be/78Yymgk6qrM?...
Coriolis Carousel: Demo
YouTube video by Physics Demos
youtu.be
October 1, 2025 at 7:23 AM
Cette expérience est très intéressante : elle montre comment la force de Coriolis veut circulariser la vitesse relative, ce que le teneur (qui initie la vitesse relative) a beaucoup de mal à empêcher, ce qui est dans le référentiel tournant une vraie force.
youtu.be/78Yymgk6qrM?...
youtu.be/78Yymgk6qrM?...
A.Persson a consacré les dernières années de sa vie à écrire des textes percutants pour forcer une nouvelle réflexion sur la force de Coriolis terrestre, notamment les vraies forces sous-jascentes, et corriger l'enseignement. L'enseignement actuel trouble les étudiants, ce qui est bien une alerte !
September 28, 2025 at 9:45 AM
A.Persson a consacré les dernières années de sa vie à écrire des textes percutants pour forcer une nouvelle réflexion sur la force de Coriolis terrestre, notamment les vraies forces sous-jascentes, et corriger l'enseignement. L'enseignement actuel trouble les étudiants, ce qui est bien une alerte !
Dans une situation de minimisation, il est logique que Fcor passe dans Fext :
On a dans le référentiel tournant :
ma = (Fcor+Fcentripete+Fautres)+Fcentrifuge
=> ma = Fcor+Fautres
Et dans le référentiel absolu :
ma = Fcor+Fcentripete+Fautres
(expliquant que certains ont étudié Fcor dans l'absolu)
On a dans le référentiel tournant :
ma = (Fcor+Fcentripete+Fautres)+Fcentrifuge
=> ma = Fcor+Fautres
Et dans le référentiel absolu :
ma = Fcor+Fcentripete+Fautres
(expliquant que certains ont étudié Fcor dans l'absolu)
September 19, 2025 at 10:41 AM
Dans une situation de minimisation, il est logique que Fcor passe dans Fext :
On a dans le référentiel tournant :
ma = (Fcor+Fcentripete+Fautres)+Fcentrifuge
=> ma = Fcor+Fautres
Et dans le référentiel absolu :
ma = Fcor+Fcentripete+Fautres
(expliquant que certains ont étudié Fcor dans l'absolu)
On a dans le référentiel tournant :
ma = (Fcor+Fcentripete+Fautres)+Fcentrifuge
=> ma = Fcor+Fautres
Et dans le référentiel absolu :
ma = Fcor+Fcentripete+Fautres
(expliquant que certains ont étudié Fcor dans l'absolu)