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Natural Science Forum / Physics / General Physics / April 2007



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ThreadLast Post  Replies
Precession of Binary Star PSR 1913+1601 May 2007 00:20 GMT14
I am wondering if the following method for calculating the
relativistic precession of a highly eccentric orbit has a name, or is
available in some published document?
Using the system parameters found in http://www.johnstonsarchive.net/relativity/binpulsar.html
Interesting mental puzzle!30 Apr 2007 22:24 GMT11
Let's say that you are I are playing a game in which I draw three cards from
a deck, look at them, then place them face down.  You don't get to see the
card faces.
Two of the cards are black and one is red.
Our garbage could save millions of lives...30 Apr 2007 21:57 GMT12
Our garbage...our food waste...would almost certainly be
enough to end world hunger. I feel confident that every
state, and maybe even every major city, produces
millions of pounds of food waste every single day. That
possible big bang misconception30 Apr 2007 21:56 GMT16
When people discuss the big bang, you often hear
someone remark 'how can something come from nothing'?
And while such a question marks the start of
an argument from ignorance, I'm inclined
[GR] Which clock is ahead?30 Apr 2007 21:34 GMT11
Precise clock A is fired from a cannon vertically upward.
Another twin clock B remains at rest near the cannon.
After clock A lands, which clock is ahead?
Clocks are insensitive to acclerations.
What Is A Soul (Consciousness) (Scientific, not Religious Please)30 Apr 2007 19:06 GMT6
It is plain for me to understand the Soul is a law of physics
simply because I myself is one while alive.
It seems to me that without a soul to think about
the physical universe it would all be totally meaningless.
Is the newton a unit of avoirdupois yet30 Apr 2007 18:14 GMT17
My not being a physist, except an amatuer of it; leads me to ask the
following questions of you who ARE real physicists:
When the metric system first came out why didn't the people of France
like it? Why did Napolean grant a reprieve from it?
the apex of a trajectory versus free fall30 Apr 2007 18:09 GMT3
When I was little and first heard about weightlessness training for
astronauts, I thought they put them in a plane, flew the plane at a
steep climb and the weightlessness occurred when the astronaut in
training was at the apex of the plane's climb, when he stopped going
"The Properties of the Aether"30 Apr 2007 16:38 GMT9
"The Properties of the Aether"
    Of course there is no such thing as the Aether, it says so right here
in the book that the Aether has been proven not to exist. Unfortunately for
the academic elite, such a proof does not exist. As Dr. Einstein said,
Giant pipelines of freshwater to parched lands30 Apr 2007 16:16 GMT304
The Alaska Pipelines were built in '68, and they're regarded as a
value-added engineering marvel.  Every day they pump tons of oil, and
they do so relatively efficiently.
In the same region, there is a lot of freshwater.  Also, diametrically
A Proposal For Scientific Removal of the Subjucative Thinker30 Apr 2007 16:05 GMT1
Some days it is my hope and the hope of many others for the USA to be
strongly free and not a vavering Democracy as tenous as Germany in the
1920's.
A common fact.  After the USA's civil war we allowed slaver owners to
physics course preparation30 Apr 2007 15:18 GMT9
I'm a freshman math student in college, but have taken only one
introductory course in physics.  At the time, I didn't like it, as the
incessant pulley calculuations and frictionless block problems seemed
dull, but I have decided to try to give another go at physics study,
Quantum Gravity 122.8 : Cubic and 2nd Order Operator Generalizations/Modifications of Riccati30 Apr 2007 05:59 GMT1
>From Osher Doctorow
Katsunori Iwasak and Takato Uehara (Kyushu U., Japan), "Periodic
solutions to Painleve VI and dynamical system on cubic surface," math/
0512583 v3 (math.A.G.) 6 Jan 2006, 26 pages, show us some of the cubic
Public Service Announcement30 Apr 2007 01:18 GMT8
Attn: All Physicists of Planet Earth.
Please drop your pants, bend slightly at the waist, and gripping your left
foot behind your back just go ahead and kick yourself right in the a.s on
behalf of myself.
Quantum Gravity 122.7  Spin Versus Acceleration in Riccati Differential Equation29 Apr 2007 23:30 GMT1
>From Osher Doctorow
If we take x or y in dy/dt = A(t) + B(t)y + C(t)y^2, the Riccati
Differential Equation, equal to spin, then since spin in Quantum
Mechanics "measures" angular momentum, which classically is based upon
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