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/sci/ - Science & Math

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2035095 No.2035095 [Reply] [Original]

so the moon causes the tide, so if theoretically the moon disappeared, would the ocean suddenly become completely still?

>> No.2035106

most of the ocean's currents are created by wind currents over the surface
/thread

>> No.2035105
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2035105

you bastard, youre not planning on blowing up the moon are you?!

>> No.2035111

You just wouldn't have tides.

>> No.2035118

There would still be slight tides because of other planet's/the sun's gravity. However, these tides would be smaller and be slower to change then moon tides.

>> No.2035119

>>2035106
>he thinks wind is what moves massive amounts of water.

>> No.2035120

the moon is the only thing that keeps the earth in it's orbit around the sun. if the moon disappeared the earth would hurtle out of the solar system and possibly slam into another object.

it would mean an end to human life.

>> No.2035121

If the moon suddenly disappeared, all life on the surface of the earth would probably come to an end. Sea life would probably be spared.

The oceans would be far from calm. There would probably be tsunamis of incomprehensible size hitting every inch of coastline on the planet.

>> No.2035122
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2035122

>>2035105
>you bastard, youre not planning on blowing up the moon are you?!

I was kind of thinking of borrowing it... just to take it for a spin you know!

(Also, isn't some tidal action caused by orbital wobble?)

>> No.2035138

>>2035120
>>2035121


retards.

>> No.2035150

>>2035119
i don't think you understood what i meant; surface currents are caused by wind currents over the surface of the ocean. other currents are caused by geological factors beneath the ocean (temperature differences), and the earth's spin and friction also cause movement in the oceans

>> No.2035157

If the moon disappeared most life on Earth would definitely start dying off. It would take about 10,000 years but it definitely wouldn't be very habitable.

>> No.2035181

the moon only makes a difference in the fact that it has deflected a few large asteroids here and there.

otherwise, it's really not necessary for life on earth

>> No.2035193

>>2035181
Yes, but if it were to suddenly disappear, that would cause the immediate and violent displacement of an incomprehensible amount of water. If an earth quake can displace enough water to make a tsunami, what makes you think trillions of tons of water suddenly being released from the moon's gravitational pull wouldn't also displace enough water to make a tsunami?

>> No.2035204

>>2035181

i thought the moon helped stabilize the wobbling of the axis of earth's rotation, thereby preventing chaotic seasons and climate and life getting fucked.

i.e. not super important, but not worthless

but what do i know

>> No.2035221

The moon is in no way a requirement of life.

Though some ecosystems are dependent on the tides.

And yes, the oceans would be more or less still, gravity exerted by other planets would be negligible. The only real ocean movements would be due to densities of different salinity, things like the gulf stream (I think this is an example, but not 100%).

Gravitation wise, you could scrap all other orbiting bodies in the solar system and Earth wouldn't be affected. Though you would get increased meteorite impacts.

>> No.2035234

>>2035221
But what of the sudden displacement of water due to the sudden disappearance of the moon?

Think about it, what happens when you drop a body of water?

>> No.2035247

>>2035095
There are other causes of tides. Winds on the surface of the ocean, for instance.

Furthermore, it's not only the gravitational pull of the moon that causes it, it's the gravitational pull of the sun and the rotation of the earth.

Also, water on land that moves (earthquakes) doesn't just stay still.

>> No.2035244

>>2035119
He thinks right.

>> No.2035249

>>2035234
I was suggesting if the moon never existed, if I woke up to find it had vanished, I could safely say everyone less than 50km from the coast would be fucked.

>> No.2035255

You get 'super tides' when the moon and sun align. So the sun's effect is noticeable.

>> No.2035262

keep veronica out of this

>> No.2035268

>>2035221
Not all life but, definitely complex life. Evolution would have never happened the way it did if the equator becomes the north pole and vice versa every 2 weeks. Simple ice ages reeked havoc on evolving species. It killed off the Neanderthals. Homo-sapiens got lucky and managed to survive the last major ice age. Imagine if you had an ice age and then a major thaw every 2 weeks - month? It would completely disrupt any ecosystem around the entire planet.

>> No.2035356

>>2035268
Oh, I did not know this...

>> No.2035379

If you calculate the force of gravity from the sun and the moon, you will find that the sun actually affects the tides about half as much as the moon, I think.

>> No.2035393

>>2035268
The Neanderthals lived through at 10 ice ages or more. The died out as we were coming out of the last one. I don't think it was the ice age that did them in.

>> No.2035391

sauce on that bitch

>> No.2035396

>>2035379
I think it's more like 1/10

>> No.2035524

>>2035391
Veronica Belmont. She's mai waifu, btw.

>> No.2035562

If the moon causes tides, how come there are two high tides per day? This has always bugged me..

>> No.2035597

>>2035562
becasue of the large mass of the moon relative to the earth, the earth and moon behave as a binary system with the centre of gravity (slightly offset from the earth's centre of gravity).

this results in a centrifugal force opposite to the direction of the gravitational attraction of the moon. On the side of the earth facing the moon, the gravitational attraction overcomes this centrifugal force and you get a high tide. The centrifugal force on the opposite face is the same, but the gravitational attraction of the moon is considerable weaker, thus you have your second high tide (but weaker than the first high tide).

>> No.2035617

>>2035095
Disregard OP
Inquire about dat Gif.

>> No.2035827

>>2035597
Thanks man. Every time I have asked anyone doing geography they have been like I DUNNO BUT IT DEFINATELY DOES, and every time I have asked a proper scientist they have been like "You know.. I have no idea. We should look it up some time." and then we get distracted doing science. ;(

>> No.2035841

>>2035597


doesnt the sun also create a tide?

isnt this what creates the neap tides?

>> No.2035868

>>2035841
They've actually mentioned that already in this thread.

>>2035379
>>2035255
etc