(Bilge) wrote in message ... Steve Shires: ...

Mercury is Doomed! It will crash into the Sun in 4.6 million years, according to Joseph Weber's relativistic equation for Mercury's distance, r, from the Sun vs. angle,...

I have two questions concerning the claim that physical concepts are free inventions of the human mind: 1) Is this claim by itself "metaphysical" or not? (Remember that...

What Eugene Shubert Needs to Learn About SR:

Imagine two space ships close to eachother motionless wrt to eachother in flat spacetime. Suddenly they start to separate. Given is that only one will accelerate. You know...

Some time ago I derived the general time travel equation for the Kerr-Newman spacetime (12.3.1). I posted that and said how it can be obtained from constants of geodesic...

Due to the misunderstanding of many people about the term "invariant" I quandruple checked myself by e-mailed Has C. Ohanian (since I learned alot from is GR text). Here is...

I shall consider the equation -x^2 -y^2 -z^2 +(ct}^2 = (interval)^2 where, as usual, the spacetime interval between two events represents a time coordinate interval, only,...

I am trying to find out some basic information about general relativity and figured that this would probably be the best place to ask about it. While I am neither shy nor...

Will The LIGO Experiment Work? An ambitious experiment to detect gravitational waves from distant astronomical sources is currently in preparation (Laser...

The Making of Observations in Relativistic Systems A while ago a program was presented on NOVA in which a physicist described an experiment. In this experiment he used...

On the propagation of light: SR asserts that the first photon generated by a source in the observer's frame is detected by a spatially separated detector in the observer's...

I was surprised by the puzzle on http://www.motionmountain.net/C-2-CLSC.pdf about the electrical switch, basically like this: A closing contact moves along a current wire...

Is it true that two bodies fall simoultaneously in earth? Does this fact prove the equivalence of mass inertia and gravitational mass?

Has anybody ever considered the possibility that quantum physics, as well as the existence is of photons and atoms, is really just an illusion created by the fact that our...

Seems that some people are unable to understand the following relations m_o = rest mass m = m_o/sqrt = mass p = mv = momentum F = dp/dt = force Relativistically Correct...

There is a show comming to PBS about Einstein's first wife Mileva Maric. See - http://www.pbs.org/opb/einsteinswife/ Pmb

Hello, its just a thought occured to me while revising for my exam on relativity. Black hole is defined as very dense object, i.e. a lot of mass in a small volume. But mass...

I'm not a scientific type, so please be gentle. Let's say I am able to travel near C ... say 0.9 C. If I travel at that speed for 1 year (by my clock), how much time will...

Responses to my questions about accelerating rods(CAUTION TROLL ALERT) still don't make sense to me. To simplify things, I've been examining the implications of...