Myth: 1 G barrel rolls are impossible.

Poor misunderestanding boy. Consider the cirumstance when the moon's
shadow is cast on the earth. Every movement then, until it's 90
degrees displaced, has an acceleration component away from the sun.
For that matter, 180 degrees later, when it lies along the earth path,
moving toward the moon, it has an acceleration vector with a component
away from the sun.

Basic mechanics.

Heavens, I teach psych, and know this stuff.

writes:

Poor misunderestanding boy. Consider the cirumstance when the moon's
shadow is cast on the earth. Every movement then, until it's 90
degrees displaced, has an acceleration component away from the sun.
For that matter, 180 degrees later, when it lies along the earth path,
moving toward the moon, it has an acceleration vector with a component
away from the sun.

As I've said, plot the actual paths around the Sun. You'll see that the
moon's path is always concave to the Sun, that is, it is never accelerating
away from the star.

Heavens, I teach psych, and know this stuff.

I didn't think that celestial mechanics was part of the psychology curriculum.

Mxsmanic wrote in
news
writes:

Poor misunderestanding boy. Consider the cirumstance when the moon's
shadow is cast on the earth. Every movement then, until it's 90
degrees displaced, has an acceleration component away from the sun.
For that matter, 180 degrees later, when it lies along the earth
path, moving toward the moon, it has an acceleration vector with a
component away from the sun.

As I've said, plot the actual paths around the Sun. You'll see that
the moon's path is always concave to the Sun, that is, it is never
accelerating away from the star.

Heavens, I teach psych, and know this stuff.

I didn't think that celestial mechanics was part of the psychology
curriculum.


Fjukktard



Bertie

Acceleration is defined as the rate of change of velocity. These
quantities are called vectors, not scalers, because there's a
direction associated with them, but we don't need to worry about that
right now.

There are times when the moon is accelerating away from the sun. That
does not mean its velocity is away from the sun, only that it is
decreasing. If it is decreasing then it is accelerating in the other
direction.

Mechanics are not part of the psych courses, you're quite right about
that. Never the less, the statement I made above is correct.

Also, for what it's worth, I'm not a pilot, at least not in the
certified sense. I probably get 50 hours of dual in a complex single a
year though, flying with my husband, and yes I know how to, in a real
airplane, fly a ILS approach under the hood to minimums and land.




On Jun 18, 2:49 am, Mxsmanic wrote:
writes:
Poor misunderestanding boy. Consider the cirumstance when the moon's
shadow is cast on the earth. Every movement then, until it's 90
degrees displaced, has an acceleration component away from the sun.
For that matter, 180 degrees later, when it lies along the earth path,
moving toward the moon, it has an acceleration vector with a component
away from the sun.

As I've said, plot the actual paths around the Sun. You'll see that the
moon's path is always concave to the Sun, that is, it is never accelerating
away from the star.

Heavens, I teach psych, and know this stuff.

I didn't think that celestial mechanics was part of the psychology curriculum.

writes:

There are times when the moon is accelerating away from the sun.

When?

That does not mean its velocity is away from the sun, only that it is
decreasing. If it is decreasing then it is accelerating in the other
direction.

Show your work.

Also, for what it's worth, I'm not a pilot, at least not in the
certified sense. I probably get 50 hours of dual in a complex single a
year though, flying with my husband, and yes I know how to, in a real
airplane, fly a ILS approach under the hood to minimums and land.

I'm not sure if that's sufficient to join the treehouse club. You'll have to
ask the little boys who run it.

"Mxsmanic" wrote in message
...
writes:

There are times when the moon is accelerating away from the sun.

When?

Quite frequently, actually.


That does not mean its velocity is away from the sun, only that it is
decreasing. If it is decreasing then it is accelerating in the other
direction.

Show your work.

Right here on the whiteboard. Hop a flight and come look at it.


Also, for what it's worth, I'm not a pilot, at least not in the
certified sense. I probably get 50 hours of dual in a complex single a
year though, flying with my husband, and yes I know how to, in a real
airplane, fly a ILS approach under the hood to minimums and land.

I'm not sure if that's sufficient to join the treehouse club. You'll have
to
ask the little boys who run it.

REAL AIRPLANE. She's in.

El Maximo writes:

Quite frequently, actually.

No, show me a diagram. Draw the orbit to scale. You'll see.

"Mxsmanic" wrote in message
...
El Maximo writes:

Quite frequently, actually.

No, show me a diagram. Draw the orbit to scale. You'll see.

I did. Come take a look.

Mxsmanic wrote in
:

El Maximo writes:

Quite frequently, actually.

No, show me a diagram. Draw the orbit to scale. You'll see.



You'd need a big sheet of paper for that, mmoron


Bertie

You may wish -- not that'd you do it, of course -- to look at any
basic physics text, or even a math text. Acceleration is discussed in
lots of places. You are confused by velocity and acceleration, but
then again you seem to be confused by lots of things.

I'd suggest you see a psychologist, but not this one, even though you
might be an interesting study. I work with kids at risk, might have
helped you 30 some years ago.

But probably not.







On Jun 18, 3:12 pm, Mxsmanic wrote:
writes:
There are times when the moon is accelerating away from the sun.

When?

That does not mean its velocity is away from the sun, only that it is
decreasing. If it is decreasing then it is accelerating in the other
direction.

Show your work.

Also, for what it's worth, I'm not a pilot, at least not in the
certified sense. I probably get 50 hours of dual in a complex single a
year though, flying with my husband, and yes I know how to, in a real
airplane, fly a ILS approach under the hood to minimums and land.

I'm not sure if that's sufficient to join the treehouse club. You'll have to
ask the little boys who run it.