2.4.7 - When Earth, Moon and Sun are aligned.

The generating force of the tides on our planet produces the same effect when Earth, Moon, Sun are aligned, always, independently from their respective order.

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prologue > index tides > 2.4 Confrontation on the tides.

2.4.1 Confrontation on the tides - introduction.
2.4.2 Two different descriptions of the tides.
2.4.3 The physical formula valid for the tides.
2.4.4
The ratio of the forces.
2.4.5
Number of the tide waves.
2.4.6
Unit of space of a tide wave.
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2.4.7
When Earth, Moon and Sun are aligned.
2.4.8
Different tide cadences.

Code proposition: [P0] neutral; [P1] classic theory; [P2] favouring the inductive approach; [P3] inductive approach.

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[P2] When the Earth, the Moon and the Sun are aligned, irrespective of the order of their alignment, the forces of the Moon, generating the tides on our planet, are added to those of the Sun.

[P1] It is a fact. As everybody may be aware of.

[P3] Thus, the force which cause the tides should act in such way to be compatible with this fact, that the direction of its action is indifferent, provided it be on the same line.

About the attraction as the cause of the tides.

[P3] The attraction is a physical force which may be added, or subtracted, depending on the respective positions of the masses. On its main line of force, it is unidirectional. Always. No exception is possible.

The Moon and the Sun can attract the water here on the Earth, adding their strength, but only on the condition that they are on the same side with respect to our planet.

If the Earth is between the Moon and the Sun, their attraction exerted on the water of our planet, is not to be added; on the contrary, a subtraction should be done.

A variable logic.

[P3] In order to justify the fact treated here, within the current theory on tides, two kinds of logic is used, in dependance on the positions of the Moon and the Sun with respect to the Earth.

In case the Earth is between the Moon and the Sun, the position becomes irrelevant.

Considering only the Moon.

[P1] The attraction of the Moon exerted on the water is stronger on the side of the Earth facing the Moon. That pulls the water toward the Moon (first bulge, first tidal wave). On the opposite side of the Earth, the attraction exerted by the Moon is at the weakest degree; another bulge gets formed because of that.

When the celestial body is over the meridian point, its strength of attraction is at the strongest degree. When the celestial body is over the opposite point, it is the centrifugal force which prevails.

Moon and Sun on the same side.

[P1] (considering the action of the Moon and Sun, during a day of new Moon, when the two celestial bodies are on the same side) The attraction of the Moon and that of the Sun add up. On the other side of our planet, their attraction is at its weakest degree.

[P3] That's when the Moon and the Sun are on the same side with respect to the Earth. At least as far as the logic used, one may agree.

Moon and Sun in opposition.

[P3] But if the two celestial bodies are in opposition, during a day of full Moon; with the Earth among Moon and Sun?

[P1] The attraction by the Moon is still added to the Sun's.

[P3] Here, one cannot agree no longer. Something else is added, not the attraction.

In case the Earth is among the Moon and the Sun you use a different logic. Sentences such as “the attraction is stronger on the side”, “weakest on the opposite side” are no longer used. As if a different physical law is then operative.

The motion as the cause of the tides.

[P3] Instead, the effects of a force due to the motion, between two masses, could be added, even if the signals come from two opposite directions, provided they are focused on the same line of force. It is the motion given as discrete critical values of angular velocity, as inferred from the observations on the water figures (itinerary 2.3).

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