nvingo
Distinguished Member
OK so it's accepted that the 'gravity' of the Moon and the Earth, is what keeps the Moon in orbit, and that gravity is what causes the tides.
The pull of the Moon's gravity on the fluid (seawater) is what causes tide to 'rise'.
So at a point on the Earth's surface, an object is pulled downwards by Earth's gravity, and upwards by the Moon's gravity.
Is this effect measurable, by sensitive 'scales' - Newton balance or similar instrument, giving a different object weight (weight not mass - mass is constant) depending on the position of the Moon relative to the object being measured ?
The pull of the Moon's gravity on the fluid (seawater) is what causes tide to 'rise'.
So at a point on the Earth's surface, an object is pulled downwards by Earth's gravity, and upwards by the Moon's gravity.
Is this effect measurable, by sensitive 'scales' - Newton balance or similar instrument, giving a different object weight (weight not mass - mass is constant) depending on the position of the Moon relative to the object being measured ?