what is the cause of tides? - Page 8

Ricimer · #**211** (**permalink**) 27-April-2005, 07:24 PM

I'm stating the obvious...reread your post and tried to figure out what caught my attention the first time. Looks good to me.

Geesh, I'm just fumbling this left and right.

SeanF · #**212** (**permalink**) 27-April-2005, 07:50 PM

Quote:

Originally Posted by Ricimer

I'm stating the obvious...reread your post and tried to figure out what caught my attention the first time. Looks good to me.

Oh, okay. I thought you were trying to make a correction or something, and I couldn't figure what was different about what you said than what I said!

Quote:

Originally Posted by Ricimer

Geesh, I'm just fumbling this left and right.

I tell you what, the first time I saw ATP's diagram and his description of why the centrifugal force wasn't relevant, it threw me for a loop, too.

Fram · #**213** (**permalink**) 27-April-2005, 08:03 PM

Quote:

Originally Posted by SeanF

Quote:

Originally Posted by Fram

Quote:

Originally Posted by SeanF

I'm not sure I follow your meaning in this last post. Can you clarify the point for me?

I'll try to explain how I understand Ricimer's point, in a very simplistic way (numbers are wild guess examples).

Due to gravity being different for each distance, the water on the near side of the earth will move the most towards the moon (say 10 m), the earth as a whole will move 8 m (as the center of the Earth is farther from the Moon than the water was), and the water at the far side will move 6 m towards the moon.
The net result is that the tides will appear to have moved away from the earth on both sides by 2 m.

I think I got that much - I just wasn't sure what the relevance was.

Rereading my own post: when I said 'in a very simplistic way', that was in no way intended as a comment on you or your capacities. It's just that I'm not able (without a whole lot of work) to explain it in a more scientific / mathematical way myself.

ops: You don't come across as if you had taken it the wrong way, luckily, but I just realised that it could sound condescending when it wasn't intended that way at all.

View Poll Results: gravity tides?????????
is graviny the cause of tides?	42	93.33%
or does the earths barycentre wobble cause tides?	3	6.67%
Voters: 45. You may not vote on this poll

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode