Recent content by TonyP0927

There is really nothing Newtonian about light; in fact, it is the basis of relativity (all of us are moving at the speed of light, just not through space as much as through time as illustrated by a space-time light cone diagram). Many physicists define m as strictly rest mass, but for...

That's because the photon is being absorbed and re-emitted by the atoms it runs into, however in-between the atoms, it travels a c.

Photons have zero mass and are not at rest in any reference frame. If you are trying to determine how photons are affected by gravity, the equivalent property for mass would be ## \frac {hf} {c^2}## .

I typically see "local flatness" or similar terms used when representing space-time as a 2D grid as is often the case to show the analogy of gravity's effect on space-time to placing a heavy ball on a sheet. In other words, it's a "simple explanation."

I am starting to get into these threads, particularly on the Physics forums, but I've noticed that many threads get closed because a topic is not welcomed or it's "too philosophical". I do not intend to post anything out of topic or philosophical, however when it comes to quantum mechanics...

1. Let's suppose you are a hyper-dimensional being that is able to see time as a spatial dimension. You could look one way and see the past and look the other way and see the future. So, the past is always happening and the future is always happening [Brian Greene, Neil deGrasse Tyson]. This...

I have am an Electrical Engineer with a Minor in Physics. I am trying to steer my career towards the science of physics, and hopefully away from the corporate world.

Oh it's real! The gravitational attraction is obvious, otherwise there would be drastic changes to tides if nobody looked at the moon. You can think of the probability of a macroscopic object existing is equal to that the ~sum of the probabilities of enough particles being in the position they...

The Copenhagen interpretation is more "real" because it's observable: Upon observation, all quantum possibilities collapse into one outcome. This has been tested with the double-slit experiment. There's a problem though, and it has to do with the "quantum information paradox". Upon waveform...

A spatial dimension is a direction that is not a vector sum of any other directions (i.e. a 90º angle for example). Categorizing spatial and temporal dimensions is actually a carry-over from classical physics that refers to Euclidean space. However, Minkowski space treat space and time...