north is south

Re: north is south

Postby Cannydc » Fri Mar 29, 2019 4:52 pm

jra wrote:
Cannydc wrote:
art0hur0moh wrote:
Cannydc wrote:
art0hur0moh wrote:so You know the Moon influences the tides? then why dosent the Sun draw all the water from east to west during the dialy procession? so where is all the water located? :again?:


It's all about gravitational pull (see Isaac Newton)

The sun is 400 times as far away as the moon. It actually has a NEGATIVE gravitational on the Earth. It's complicated, but here;

https://www.khanacademy.org/science/ap- ... tances-ap1


during an eclipse of the Sun there should only be one tide in a 24 hour period. I don't live near the coast so can't test My theory. an ddurin an eclipse of the Moon two tides in a 24 hour period. came across the term yesterday dicot, semi-dictot something or other?


Tides are caused by the gravitational pull of the moon. The Sun has no gravitational effect on tides.

An eclipse of the sun is simply the moon positioned between the Earth and the sun, blocking the light.

Therefore the moon's rotation around the Earth is not altered, so similarly tides are not altered too.


What do you think spring and neap tides are if The Sun has no gravitational effect on the tides?

https://en.wikipedia.org/wiki/Tide#Rang ... _and_neaps

https://oceanservice.noaa.gov/education ... tions.html


TBH, JRA, it became just too complicated to try factoring stuff like that in, when trying to explain how a solar eclipse has no discernable effect... I lost the will to live :brickwall:
User avatar
Cannydc
 
Posts: 21431
Joined: Sun Oct 02, 2011 3:59 pm

Re: north is south

Postby Lady Murasaki » Mon Apr 01, 2019 10:22 am

art0hur0moh wrote: and the spin of the Moon will result in the cool of heavy material closer to the surface.


I like a good Ted Talk.

phpBB [video]
User avatar
Lady Murasaki
 
Posts: 37246
Joined: Wed Sep 07, 2011 9:46 pm

Re: north is south

Postby jra » Tue Apr 02, 2019 1:23 am

Cannydc wrote:
jra wrote:
Cannydc wrote:
art0hur0moh wrote:
Cannydc wrote:It's all about gravitational pull (see Isaac Newton)

The sun is 400 times as far away as the moon. It actually has a NEGATIVE gravitational on the Earth. It's complicated, but here;

https://www.khanacademy.org/science/ap- ... tances-ap1


during an eclipse of the Sun there should only be one tide in a 24 hour period. I don't live near the coast so can't test My theory. an ddurin an eclipse of the Moon two tides in a 24 hour period. came across the term yesterday dicot, semi-dictot something or other?


Tides are caused by the gravitational pull of the moon. The Sun has no gravitational effect on tides.

An eclipse of the sun is simply the moon positioned between the Earth and the sun, blocking the light.

Therefore the moon's rotation around the Earth is not altered, so similarly tides are not altered too.


What do you think spring and neap tides are if The Sun has no gravitational effect on the tides?

https://en.wikipedia.org/wiki/Tide#Rang ... _and_neaps

https://oceanservice.noaa.gov/education ... tions.html


TBH, JRA, it became just too complicated to try factoring stuff like that in, when trying to explain how a solar eclipse has no discernable effect... I lost the will to live :brickwall:


Spring tides happen when The Moon and The Sun are in alignment meaning the height difference between low water and high water is greater (higher tidal range).

Neap tides happen when The Moon and The Sun are 90 degrees out of alignment meaning the height difference between low water and high water is less (lower tidal range).

Tidal ranges vary around the world depending on location and geography.

Spring tides tend to ebb and flow faster than neap tides.

Tidal range can vary depending on the weather, e.g. wind direction and strength and barometric (atmospheric) pressure, as measured by a barometer.

It's all very complex, but the above is roughly what happens, in simplistic terms.

My dad taught me this sort of stuff amongst many other things, as he was a very experienced sailor in his time. I was on the water before I could even walk, so to speak.

I have huge respect for the sea, as it is highly unpredictable around the UK in general and those that don't have respect for the sea often end up being injured or even killed.
User avatar
jra
 
Posts: 18197
Joined: Fri Jun 19, 2015 9:02 pm

Previous

Return to News, Politics And Current Affairs

Who is online

Users browsing this forum: No registered users and 35 guests

cron