Re: Those of us trying to help Kelleher



dkelvey@xxxxxxxxxxx wrote:

This is not true, the Equator only sees that the Sun rises and sets
at
the same locations each day. It is not true that the Sun follows the
same arc each day. The Equator sees the same shift, North and South
of the arc of the Sun as I see here in Northern California or as seen
in Australia. It also experiences solar noon offsets as I do as well.
If as you say, it does not do this, can you explain why there is
no difference in these parameters, regardless of if I'm in Northern
or Southern California. Do the rules for the rest of the world
suddenly
stop as I step on the equator?
The Equator would see the most Sun light and heat when the sun
was directly over head during the Solar noon. This would only happen
twice a year at the two Equinox. At other times, the Sun would be
at angles during the day and in a sense produce a seasonal change.
To say it has a winter and summer would be incorrect but to say
it has no seasons would also be incorrect. It has distinctly different
Solar light per square foot of surface at different times of the year.
What makes you believe otherwise?
Try holding a ball with a line around it and shine a light on it.
tilt the ball relative to the sun as it would be for winter or summer.
hold a tooth pick such that it case no shadow when it is local
noon. Notice that the tooth pick is at an angle to the plane of the
line you'd defined as equator. You don't need to depend on any
statement by me or any long dead astronomer, just run the
experiment your self.
It is also not true that at the equinox, all locations on the Earth
would experience the same as the equator. I've seen it said that
the Sun's shadow would follow a strait line on a flat surface.
This is not really true on a planetary scale. It would follow
a line of longitude, which we know is not truly strait but curves
around the Earth. In the Northern hemisphere it curves
to the North and in the Southern hemisphere it curves to the
south, relative to a strait line.

(snipped)

It is also interesting to note that the equinoxes are the only times of the year when the sun makes a straight path across the sky for all latitudes. This is not to say that it rises and sets vertically (normal) to the horizon at all latitudes but the path does appear to be straight without any curving to the south or north during the hours before and after local noon. At other times of the year the sun rises and sets in a curved arc relative to the horizon, although this effect is really caused by the projection of the celestial sphere on to the apparently flat earth. This is true for any object located north or south of the celestial equator.
.



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