Sort By :
0 votes
2 answers
2.2k views

Is there a shorter term for "equipotential surface of the Earth's gravitational field"?

Topic: Science ,    Subtopic: Physics

I just used this phrase in another answer and I can't believe there's not some short term for it....

asked: UTC 2020-07-30 10:05 PM
0 votes
1 answers
2.0k views

Diffraction interference patterns from grating much smaller than wavelength

Topic: Science ,    Subtopic: Physics Tags: diffraction nyquist frequency

For a 405nm laser diffracting through a 10nm spaced grid, how to compute the interference pattern? Or more generally, is there a relatively simple formula to compute the diffraction interference pattern when slit width is an order of magnitude smaller than the wavelength?   How I tried first ...

asked: UTC 2020-08-17 10:29 PM
0 votes
2 answers
1.8k views

Can we ever know if there is anything on the "other side" of the universe?

Topic: Science ,    Subtopic: Physics Tags: physics astrophysics space universe

If the universe is expanding, it must be expanding into something, right? If so, then if the universe is expanding at the speed of light, is it even possible to ever find out what's on the "other side"? Not looking for religious answers. I really want to know if this is even physically possible?...

asked: UTC 2020-10-05 01:58 PM
image NickG (310)
1 votes
1 answers
1.7k views

Is it possible that there are particles smaller than quarks?

Topic: Science ,    Subtopic: Physics Tags: subatomic particles quantum physics particle physics planck

As various points in history, we've made conclusions that had eventually been proven incorrect. Is there a physical law that disallows particles smaller than quarks to exist? If so, does this size come from math in the Planck scale?...

asked: UTC 2020-10-13 03:59 PM
image NickG (310)
0 votes
1 answers
1.9k views

What's the trick to skipping stones?

Topic: Science ,    Subtopic: Physics

How can I learn to skip stones perfectly? There are so many variables!...

asked: UTC 2020-11-04 01:49 AM
image SarahCzar (656)
1 votes
1 answers
1.2k views

Can entropy be applied to our day to day lives?

Topic: Science ,    Subtopic: Physics Tags: Entropy Physics Entropy in daily life

I have been reading about entropy in physics and am wondering if there are any applications of it outside of physics and in social systems....

asked: UTC 2021-07-18 09:40 PM
image Amir (180)
0 votes
1 answers
1.1k views

What are some good books for learning about black holes?

Topic: Science ,    Subtopic: Physics Tags: Black holes Physics Science Books

I have recently become very interested in black holes and the physics surrounding the topic and would like to be better informed....

asked: UTC 2021-07-27 06:00 PM
image Amir (180)
1 votes
2 answers
1.3k views

If google's computer generated "time crystal" turns out to be backed up by peer review what are some of the implications of such a discovery?

Topic: Science ,    Subtopic: Physics Tags: Time crystal Physics Thermodynamics

Recently it has come out in the news that Google's quantum computer has created a time crystal (the way i understand it it is a computer generated formulation and not the physical thing). I am no physicist so I could be wrong but a time crystal existing would mean that the second law of thermodynami...

asked: UTC 2021-07-31 04:43 PM
image Amir (180)