Recent content by RyanXXVI

"Umph" is a very obscure term, especially in physics. Do you mind clarifying?

Imagine a system with a laser and a receiver with the ability to detect when light from the laser reaches it. There is also a console equidistant from both the receiver and the laser which sends a signal to each instrument, making the laser turn on and the receiver start a timer. The distance...

If one were to hollow out a perfectly spherical planet that also had equal a bit and then enter it, the pull of gravity would be equal from all directions if one was in the center of the cavity. However, the Earth is not a perfect sphere and has gravitational inconsistencies, so the net force...

In physics, math, and any other realm of logical thinking, we "know" a fact because it applies to one or both of two thought processes: inductive reasoning or deductive reasoning. Inductive reasoning is when one notices a concrete pattern that occurs every time under a certain circumstance...

Do molecules, atoms, and subatomic particles have color? If so, what? Is it even possible to determine if they do or not (Can electron microscopes see electrons?)? Is color even relevant at lengths this small? I would elaborate more but these questions are fairly straightforward.

Thank you all, I understand this concept rather well now.

I do think that these are matters of faith but I do not think they have "nothing to do with physics". After all, Determinism is based on the laws of physics. If these laws say a+b=c, and we know a and b, we can determine c. Determinism says that if the brain works the same way as the laws of...

On a slightly similar note, can we make the color black with holes? I saw a video by Veritasium awhile ago explaining this phenomenon but it mostly focused on hues such as red and green etc.

Why would I be able to see the light before reflection? The light is traveling away from me and there is a cone around the source so no light would come at me unless through extreme diffraction. The only way for me to see the light in this situation would be for the light to reflect off the...

When I was very young I would go around shining flashlights at things an when I would shine the light onto a black surface, a patch on the surface would be illuminated. If black truly absorbed the light no illumination would happen. This contradiction is what led me to starting this thread.

Can you explain to me the difference between "black" and "true black", I understand that something that is "true black" will not reflect light, but what in a black object prevents it from being "truly black"? Is the space between the stars as I see them with my naked eye truly black? Despite...

In school, I have been told that black appears how it is because it absorbs all frequencies of visible light and reflects no frequencies of visible light. Following that logic, if one were to shine a flashlight in a dark room where the walls, ceiling and floor were all black, one would not see...

When an object of lower density is surrounded by a fluid of higher density, the object rises to the top of the fluid. Clearly, a force is acting on the object, as it is accelerating upwards. I'm sure some physicist has given a name to this force, and there is also probably an equation for it...

To answer your question, no I have not done the experiment (although I agree I should), and I posted this question on a poor assumption. I could have easily just confused Force for Work, which certainly would increase due to the increased distance needed to pull the nail out. However, I do have...

Also, here is the link to the essay on the surface of last scattering (forgot to post it in the earlier post). http://ned.ipac.caltech.edu/level5/Glossary/Essay_lss.html