Moon and stuff

[Das_Boot]

My earlier post.

'''You are labouring under a misconception The cetrifugal force I and the RNLI web site are talking about is not caused by the rotation of the earth it is caused by the orbit of the Earth and moon.

Have a look at the web site before making a judgment'''

Text from your post

Note that gravitational forces alone are responsible for the tides. Some textbooks confuse the matter by talking about "effects due to rotation". Rotation of the earth does indeed cause an "equatorial" bulge extending entirely around the earth. This is quite different from tides. For one thing, the equatorial bulge is constant in size, and not in any way related to the position of the moon or sun. The lunar tides are an additional distortion added to that equatorial bulge, and they are fixed in position relative to the moon, not to the earth.

we are in agreement.

 

[MedMan]

[ QUOTE ]
There is no such thing as centrifugal force.

[/ QUOTE ]

Well done that man! Here here! There is indeed no such thing as centrifugal force. Any answer using the term can thus be automatically disregarded as it is inherently flawed.

 

[ashanta]

Either way you look at it, it caused purely by the gravitational effects of the moon and the sun. The reason we get springs and neaps is due to the configuration/position of the sun and moon in relationship with the earth. When moon and sun at right angles to each other its neaps as one is reducing the effect of the other on the earths surface. It's springs when they are either on either side of the earth but in line or they are both on the same side of the earth and in line with earth. When this occurs we get the biggest springs.
I was taught this in the 60's at the Indefatigable! Funny what things you remember.

Regards.

Peter.

 

[michael_99]

Here we are dealing with something no one can prove anything about. In order to prove anything, we have to reverse the rotation of the earth, and that can not be done, so once again, we go along with what someone long ago came up with. My question, why does SNOW on the top of the mountain, which travel at a higer speed, not move. Why only water. And somebody falling out of bed.
The old chicken and egg all over again. /forums/images/graemlins/shocked.gif

 

[poter]

I am extremely worried by all of the above & all the web sites… They all without fail describe &/or show the earth as circular or like a ball…that of course is complete rubbish!

If the earth was round we would fall off, therefore it must be Flat.

The tides as you lot call them are just water sloshing about, like in a cup of tea.

Endeth the lesson. /forums/images/graemlins/smirk.gif

poter

 

[BrendanS]

Just stay where you are. The nice men in white coats will be along shortly with your medication.

 

[kds]

Not only is there no such thing as centrifugal force, but the Earth is an inanimate object, has no mind and so can not try to do anything to you - such as throw you off the bed. Unlike the moon, which as we all know, has a man in it.
Ken

 

[LadyInBed]

Stuck Moon tidal bulge into Google and it spewed out
http://csep10.phys.utk.edu/astr161/lect/time/tides.html
http://core.ecu.edu/geology/woods/TIDES.htm
http://www.astronomynotes.com/gravappl/s10.htm
http://www.clas.ufl.edu/users/mrosenme/Oceanography/Lectures/tides.htm
and
http://www.madsci.org/posts/archives/aug97/871361127.Ph.r.html

as the first 5 sites!

 

[michael_99]

Let me see, if I drop something on a moonless night, it will travel faster then if I drop it under a full moon. That makes sense.
The shockwave from the Tsunami put our clock out by 2 million of a second, so now all our tide tables is out, and not to be trusted. /forums/images/graemlins/grin.gif

 

[LeonF]

I hope for your sake that there is more holding you to the bed than gravitation or centripetal force !!!

 

[MedMan]

[ QUOTE ]
The Earth is an inanimate object and has no mind ... ...

[/ QUOTE ]
I wonder if that's why it is often know as 'Mother Earth?' /forums/images/graemlins/wink.gif

Excuse me. Got to go. Need to get my head below the parapet!

 

[jonjo]

Re: Eureka

I have finally got it.

The previous scuttlebutt thread 2 years ago on this subject was a frustration for me because I could not understand the theory about the double tidal bulge on opposing sides of the world. Usually my right-handed brain (I am a left hander) finds 3D dynamic models easy to visualize but the double tidal bulge never made sense.

Anyhow according to this page http://www.poemsinc.org/oceano/tides.htm#buckle the double tidal bulge is a fallacy and would not make sense due to the implied speed of the tidal wave crest at the equator. In place of the double tidal bulge there are in fact a myriad of tidal wave circuits around the globe that have been created by the configuration of the continents and ocean islands.

These tidal wave circuits make more sense. Putting aside the question mark as to why the gravitational pull of the moon would cause the tide to heap up on the opposite side of the world, how would the double bulge theorists explain the tidal cycle of the English Channel? It takes 6 hours for HW to travel up the Channel i.e. 7 degrees of longitude when the bulge should have travelled 90 degrees. Furthermore the HW bulge travels the wrong way.

So there you have it conclusive proof that YM theory courses should be ignored. The tides we see in the channel are simply the effect of our local north Atlantic tidal circuit sloshing around and propelled by a gravitational kick every 24 hours.

It must be true I read it on the internet.