Approach Definition and 565 Threads

This is a chess/math puzzle I invented: Consider a fully set up chess board (in starting position). Invent a condition (new rule) in which black wins without either side making any moves. Note: this problem has a really abstract and *topological* approach. :smile: Please email me...

If F(x) -64/x^2 and it wants me to find an equation that decribes its position at (8,-1) which way do you think is best to find this out using the division of deritives or get it by limts

The following is a discussion paper I wrote some time ago. It suggests a change in attitude to the treatment and possible therapies available for persons suffering mental Illnesses. At first glance it may appear to be rather radical but actually it is quite conservative. Cognitive behaviour...

Antisymmetric tensors combine with symmetric tensors to give the thermodynamic arrow of time, which is really a continual densification of spacelike surfaces? More random thoughts on the unified field theory: symmetric tensor: A^uv = A^vu antisymmetric tensor: A^uv = -A^vu...

any comment on an approach to quantum gravity tried by Stephen Hawking, I think in the 1980s and 1990s, but apparently abandoned? It was called "euclidean quantum gravity" and involved a sum over spacetimes somewhat analogous to a feynmann path integral---a spacetime being like a path. In...

Hi, I'm trying to do a problem that goes something like this: There is a mass (m) attached to one end of a massless rod (length l). The other end of the rod is attached to a frictionless pivot. The rod is released from rest at an angle F0 < pi/2. At what angle F does the force in the rod...

Such as sqrt 5: (2.236067977...) Start with the fractional seeds 2/1, 9/4,... New members are generated (both numerators and denominators) by the rule new member = 4 times the current plus the previous. Which generates the progrssion 2/1, 9/4, 38/17, 161/72, 682/305, 2889/1292...

Hi, Can somebody drill me on the "congruences and modular arithmetic"? I know it is a big topic, but I think I am missing "something" in my knowledge... These things seem very unusual to me, and makes no sense sometimes. Find smallest integer n, where: 3^n \equiv 1 (mod 7) Is there a...

arXiv:gr-qc/0401102 v1 26 Jan 2004 A New Approach in Quantum Gravity and its Cosmological Implications Simone Mercuri Giovanni Montani ICRA—International Center for Relativistic Astrophysics Dipartimento di Fisica (G9), Universit` a di Roma, “La Sapienza”, Piazzale Aldo Moro 5...

Just out: http://il.arxiv.org/abs/gr-qc/0401102

Particles having nonzero rest mass can approach, but not reach, the speed of light, since their mass would become infinite at that speed. Can anyone expound upon this commencing with the very fundamental concepts (nonzero rest mass, mass, inertia, infinite mass etc.)?

Hi all, I came across a problem on collisions on one of my professors old exams. The problem is: http://home.comcast.net/~msharma15/problem_2.jpg The way I am trying to approach it is by applying the conservation of linear momentum and energy, but the problem is that I still get left...

I was wondering if two electrons were to approach each other, and if we regard electron as having wave-like properties, then, there is a chance that destructive interference will occur, which translates to the destruction of both electrons!?

I have watched that in physics or string theory perturbation is used..but could we obtain a unifying theory of physics using canonical theory?..i mean take the Lagrangian take the hamiltonian and quantizy the moment Pab by introducing functional derivatives..

I have recently listened to the tapes of the "Journey through the Tenth Dimension" lecture, given by Michio Kaku in 1989 (I think). He gave his idea of why we haven't found intelligent, extra terrestrial life. He used an illustration of an ant-hill. If you see an ant-hill, do you feel...