7/19/2008
It's not strictly correct to say that a planet orbits
its parent star.
Given that each exerts a gravitational pull on the other,
how could we expect the star to remain absolutely fixed
while the planet orbits around it?
In fact
both orbit; and they orbit around a common point
called the
Center of Mass (CM)
Wikipedia defines the Center of Mass (CM) as,
a specific point at which, for many purposes, thesystem's mass behaves as if it were concentratedPhysicists have used the concept of "balance" to define CM,
The center of mass is familiar to anyone who hasever played on a see-saw. The fulcrum point atwhich the see-saw will exactly balance two peoplesitting on either end is the center of mass for thetwo persons sitting on the see-saw.The figure below depicts a two-body system;
X marks its center of mass.
image creditIf
X were the fulcrum of a see-saw, the two bodies
would balance.
For a two body system, the center of mass can be
determined through these equations: where
m denotes
mass;
d,
distance; and
R, the total separation between
the two bodies.
image creditWhen the a planet and star orbit their center of mass,
CM will almost certainly be located
within the star itself,
but
not at its center, as shown in the video below.
7/16/2008
much has been written about if, how and when
Love might end; less has been written about when
it began
the video below addresses the issue of Love's
first appearance and its history
it features "Evolution", a poem by
Langdon Smithit is narrated by humorist and author
Jean Shepherdand it begins with the line,
When you were a tadpole and I was a fish In the Paleozoic time,
7/11/2008
James Thurber (1894-1961) has been called
"the greatest American humorist since Mark Twain"
he is best known for
The Secret Life of Walter Mitty (1939),
a short story about a timid, henpecked man who often escapes
into heroic fantasies
Thurber's writing and cartoons are edgy and absurdist:
he places odd people in strange situations; highlighting
the stresses and frustrations of modern life -
as in the video below, based on Thurber's
A Box To Hide In
7/5/2008

Defense Mechanisms are psychological processes
that protect the conscious mind from threatening
impulses, thoughts and feelings
they do so by denying or distorting reality, and
they are largely unconscious
defense mechanisms are normal and, if used in
moderation, they can be helpful -
helpful in that they can give us time to recognize
our discomfort, identify its source and find ways
to consciously deal with it
however, the extensive and prolonged use of
defense mechanisms can be problematic in that
underlying difficulties remain, energy is wasted
and stress builds
Sigmund Freud first used “defense” as a psycho-
analytic term in 1894; and it was his daughter,
Anna Freud, who refined and expanded his theories
in the 1930s
the defense mechanism referred to as undoing
is an unconscious attempt to take back, nullify or
“un-do” a thought or action that had resulted in
guilt or anxiety
for example,
A physician may become over-solicitous or may
over-medicate a patient in whose treatment he
had made an error.
- Leigh & Reiser (1992)
a husband who showers his wife with roses and
chocolates on Valentine’s Day may be unconsciously
seeking to undo a year of neglect

image credit
5/4/2008
psychologist
Albert Ellis coined the term
awfulizingto refer to a distortion of thinking
when we
awfulize, an event or situation is thought
of in overly negative terms
it's a kind of negative exaggeration where, for exam-
ple, a minor setback is seen as a major catastrophe
awfulizing can set into motion a chain of self-fulfilling
thoughts, feelings and actions;
the mere expectation that things will get worse
will cause them to get worse
take a look below at the fabled,
Henny Penny one day while peacefully eating lunch in the shade
of a large oak, Henny Penny was struck on the head
by a falling acorn;
her conclusion -


Henny is
awfulizing, misinterpreting a situation in
terms so negative that her view bears little resem-
blance to reality
she needs a friend, a
Goosey Loosey or a
Turkey
Lurkey, to tell her to chill out, look around (and up)
and consider another view of her situation