Quiz - Skills & Environment - Major Currents

[tursiops]

FYI, oceanographers do not refer to CW or CCW/ACW, but rather to cyclonic or anti-cyclonic. The major current systems are anti-cyclonic in both hemispheres; hurricanes/cyclones are cyclonic in bth hemisperes. "Cyclonic" has to do with the rotation of the earth -- which is the same in both hemispheres.

 

[tursiops]

Because astronauts are outside of the magnetosphere and the sun's ionizing solar radiation screws with their vision and inverts it. Obviously. I thought everyone knew that.
LOL. This is proof it is apparently easier to invent physics than it is to know physics!

Earths in mirror are closer than they appear

 

[stepfen]

How is the astronaut view different from a map or satellite view?

Astronauts are "hi". Just like a lot of SB members seem to be.

 

[michael-fisch]

So far we have determined that around a quarter of the divers that have so far answered this quiz question are in need of remedial instruction.
If an apple falls out of a tree that has Issac Newton sitting under it, what happens?
a° The apple flies off into space, never to be seen again.
b° The apple lands on the grass and Issac doesn't ever notice it.
c° The apple lands on his head and Issac spends the next week in bed with a concussion.
d° The apple lands on his head,. becomes a Macintosh Pro, and using it he discovers nuclear fission.

Michael

 

[Storker]

I figured the main currents should be dictated by the Coriolis effect.

Of course they are.

Then there's the question of what that has to do with local conditions. And the answer, for some 99% of the cases, is zero, zilch, nada, nothing at all. Interesting from an academic POV, not particularly relevant for local diving conditions.

 

[TMHeimer]

Jeez. Think of it on a map, or a satellite image, looking down vertically. You are not on shore looking out horizontally.

Yes. Agree of course. For Pete's sake, the question infers you're looking at a map (if you're looking at the Atlantic while standing on the S. tip of Baffin Island or Greenland or in Darwin, Australia, the answer is still clockwise). So unless the map is upside down, all appears the same whether you're looking at it in Canada or Australia. I don't know exactly from what angle astronauts view the Earth. This is not a test for astronauts.

 

[-JD-]

So far we have determined that around a quarter of the divers that have so far answered this quiz question are in need of remedial instruction.
If an apple falls out of a tree that has Issac Newton sitting under it, what happens?
a° The apple flies off into space, never to be seen again.
b° The apple lands on the grass and Issac doesn't ever notice it.
c° The apple lands on his head and Issac spends the next week in bed with a concussion.
d° The apple lands on his head,. becomes a Macintosh Pro, and using it he discover nuclear fission.

Michael

Best answer, assuming we are talking about planet Earth, here and now is 'b'. But I have to quibble with the "sitting" part...

 

[BlueTrin]

So far we have determined that around a quarter of the divers that have so far answered this quiz question are in need of remedial instruction.
If an apple falls out of a tree that has Issac Newton sitting under it, what happens?
a° The apple flies off into space, never to be seen again.
b° The apple lands on the grass and Issac doesn't ever notice it.
c° The apple lands on his head and Issac spends the next week in bed with a concussion.
d° The apple lands on his head,. becomes a Macintosh Pro, and using it he discovers nuclear fission.

Michael

Does it depends if whether the Earth rotates around an axis and throw the apple out of the window ?

 

[Steve_C]

Jeez. Think of it on a map, or a satellite image, looking down vertically. You are not on shore looking out horizontally.

I understand that. There is a counter clockwise current on the north side of the gulf stream wich makes it down to Hatteras.

 

[tursiops]

I understand that. There is a counter clockwise current on the north side of the gulf stream wich makes it down to Hatteras.

View attachment 581685

The "major" currents are defined by how much water is actually carried in them. The Labrador Current is quite small, and doesn't even appear on many charts. The question is about the major gyres....there is one in each major ocean basin.