I have a question. A beam of light (or radio waves) is thrown at Venus, which for purposes of this problem is a mirror moving 5 km/s or 1.667 * 10^-5 c away from us. The...

Is it possible to move a particle without applying a force on it? One observation suggests that the answer is 'yes'. And that phenomenon is the bending of light in intense...

An examination of this video http://video.google.com/videoplay?docid=-7750532340306101329 reveals that the collapse of WTC 7 started at second 17 and completedat second 23....

A simple survey yields a cosmic conundrum. Public release date: 31-Jul-2006 "Santa Cruz, CA -- A survey of galaxies observed along the sightlines to quasars and gamma-ray...

Some people say that the distance is c*t_0, with c the speed of light, and t_0 is 13.7 billion years. Other pople say that the distance is about 16 billion years (but I...

The Real Gary Sokolich wrote in : .....for brevity, original post snipped.... This is an update...

It is known that the wavelength of the sound waves emitted by the source, change when the source is at motion and the reciever is at rest(w.r.t ground observer).What happens...

"Measuring Our Absolute Velocity" In the 19th century, science had concluded that reality was based upon the Aether, a rigid medium that pervaded all of space. The...

i have maybe a bit n00bish hypothetical question about the speed of light, and im not really sure if this is the right group so sorry if its off topic. lets say i had a...

Karl Popper: "...we can argue that it would be a highly improbable coincidence if a theory like Einstein's could correctly predict very precise measurements not predicted by...

Hello to all: I have over the past few months been studying Zee's excellent book "QFT in a Nutshell." I had some questions regarding the degrees of freedom for a Dirac...

hi goys i am a big freak with anything related to physics. i deal mainly with nuclear and particle physics i got this doubt that though gravitons do exist why is it not...

See the thread my confusion and help me out here. JT

If a spaceship is flying from the Earth at very high speed, then by relativity theory time in the spaceship goes slower. But on the other hand one can say that the spaceship...

I'm new to this group, so I hope my questions don't seem too trivial. I've head many times that the speed of light (in the vacuum) is constant with respect any observer...

Somewhat paradoxically, Einstein's deification is due to his mediocrity. What thinkers like Poincare regarded as dismal absurdity, e.g. I measure your clock to be slower than...

On the other hand I have got five other fingers. However read the Holy Bible and be enlightened. And if you are serious about relativity get rid of the relatives first.

The trend or "state of the art" of theoretical physics is guided and dictated by peer journals. Is this justified? Are they suited to this task? Are the editors free of...

Big Bertha Thing Faculty (Sequel to battle) Cosmic Ray Series Possible Real World System Constructs http://web.onetel.com/~tonylance/faculty.html Access page 600K ZIP...

"The Limitations of Mathematics in Physics" The present philosophy in theoretical physics is to search for mathematical relationships that predict experimental results...