/sci/ - Science & Math

>>11180672
3) Tide Charts follow the phase and position of the Moon.

People who live near the ocean already know about this, but tide charts are generally printed with the Moon's phase on them. Because it's known that during half moons, the tide is much weaker. Pic related, you can see this.

That's because when the Moon and Sun are in alignment, their respective tidal forces add together (the sun has approximately 1/2 the tidal force of the Moon). When the Sun and Moon are out of phase, their tidal forces subtract, giving us "neap tides" (reduced tides).

Furthermore, the position of the Moon in the sky can tell you what the tide is. High in the sky, it's high tide. Near the horizon, it's low tide. On the flat earth model this doesn't make any sense.

>>11111882
3) You can predict the tides knowing the position of the Moon.

When the Moon is high in the sky, or on the other side, there is a high tide. When the Moon is near the horizon, or just below the horizon, there is a low tide. But furthermore you can predict the strength of the tide by the phase of the Moon. During a New and Full Moon the tide is stronger, during a half Moon the tide is weaker. This is because the sun contributes about 1/2 the tidal force of the Moon, and when the Moon and Sun are in alignment the effects add to produce a stronger tide

>>11035709
#5 tides confirm the round earth model. When the Moon is high in the sky, or on the opposite side, there is a high tide. When the Moon is near the horizon (or just below) there is a low tide. The phase of the Moon correlates to the tide's intensity. New and Full Moons are when the Moon and the Sun are in alignment, and thus have more widely swinging tides. "Neap tides" (weak tides) occur when there is a half Moon (the sun and the Moon are out of alignment). The sun has about 0.5 times the tidal force on the Earth as the Moon

how do the tides work?

People who don't live near the beach don't know this, but you can predict the tides based on the position and the phase of the Moon. On the New and Full Moons, the tide swings more strongly. On Half Moons we have what we call a "neap tide", which is a moderate tide.

So based on the Moon's phase you can know the strength of the tide, but based on the Moon's position you can also know the phase of the tide. If the Moon is high in the sky, it's a high tide. If it's near the horizon, it's a low tide. Of course you can't always see the Moon sometimes it's on the opposite side of the Earth, so it's not perfect