117. An orbiting Moon could not cause the tides on Earth

"Newton also theorized and it is now commonly taught that the Earth’s ocean tides are caused by gravitational lunar attraction. If the Moon is only 2,160 miles in diameter and the Earth 8,000 miles, however, using their own math and “law,” it follows that the Earth is 87 times more massive and therefore the larger object should attract the smaller to it, and not the other way around. If the Earth’s greater gravity is what keeps the Moon in orbit, it is impossible for the Moon’s lesser gravity to supersede the Earth’s gravity, especially at Earth’s sea-level, where its gravitational attraction would even further out-trump the Moon’s. And if the Moon’s gravity truly did supersede the Earth’s causing the tides to be drawn towards it, there should be nothing to stop them from continuing onwards and upwards towards their great attractor."

Not surprisingly Dubay does not understand how gravity works

If Dubay is going to invoke science’s own "law", then he should at least understand the law.

Keeping it simple for Mr Dubay  ... The Earth’s gravity is pulling on the Moon, keeping it in orbit.  The Moon’s much smaller gravity is simultaneously pulling on the Earth, and on the oceans of Earth.


Of course, because the Earth’s gravity is much stronger than the Moon’s gravity by virtue of its size and proximity, the oceans stay firmly in contact with Earth, but they are pulled towards the moon a little.

This pull is enough to cause the tides.  How difficult is that to understand?

Note also that flat earthers offer no explanation of their own as to why tides occur on a stationary flat Earth.  Perhaps there is a great invisible spoon hanging down from the firmament giving the oceans a good stir.

For those of you that are interested in the math, see below

http://curious.astro.cornell.edu/physics/37-our-solar-system/the-moon/the-moon-and-the-earth/261-is-the-gravitational-force-exerted-by-the-earth-on-the-moon-equal-to-the-centripetal-force-acting-on-the-moon-intermediate

See Proof 118 for a fuller explanation of how the tides work.



< Prev    111-120   Next >

Comments

Popular posts from this blog

127. Straight reflections of sunlight and moonlight are impossible on a spherical Earth

Debunking Eric Dubay's 200 proofs the earth is not a spinning ball

If Earth was a sphere the visible stars would be different