I was blabbering how the math didn't check out, that we were three orders of magnitude short of ice.
My mistake was to not convert km to m when considering height of water, which accounts for the...
Type: Posts; User: OngBonga
I was blabbering how the math didn't check out, that we were three orders of magnitude short of ice.
My mistake was to not convert km to m when considering height of water, which accounts for the...
I hope that got deleted before anyone digested it.
Ok so I think I know why h-bar and not h
It's the uncertainty principle. It's the limit at which we can have certainty of the location of a particle. To locate it any further would give rise to...
Ok let me rephrase.
Your solution for h-bar is the Planck length
What you don't seem to have realised yet is that here, your solution for h-bar is h.
I'm legit curious if your calculations are accurate here or if you've just made some kind of mistake.
I have no idea what the implications of that are if accurate, let's just say my mind would be...
This is really really interesting. See how long it takes to figure out why.
Our motion through spacetime is always c. Our motion through space is not. So if we set c to 1, our motion through time is the reciprocal of our motion through space. If we move slower than c in...
It's sunday morning spliff time, can you tell?
Probably there's nothing special about the Planck length, nor the Planck second, rather what's special is the Planck lengthsecond. That's what in quantised. Spacetime.
If this is true, the...
I can see how I'm giving this impression but it's because I'm lazy with my language. The Planck constant is a constant of nature, the Planck length is a unit that emerges from it. But what seems...
It's not easy finding something reliable on this topic. Those posts are cropped from a discussion asking what the physical significance of the Planck constant is.
Is he being accurate when he...
Some other reading that's bending my brain...
(somewhat cropped)
And then there's this which is really something for you and not me because it's fucking French to me...
Well I'm not arguing this, and it's clear the Planck mass is not a fundamental lower bound of any sort because it's massive (on these scales). Probably Planck volume is fundamental, and Planck time,...
I have no idea, but maybe you can translate this into something I can grasp...
c tells us the speed of causality... basically how fast we move through time.
g tells us how much a given mass will bend spacetime.
h-bar tells us something too, we just haven't really figured...
I wonder when it will dawn on you that the Planck length is more than just a length!
https://www.youtube.com/watch?v=bjVfL8uNkUk&t=2s
Maybe Arvin can explain better than I can. Skip to 6...
I feel like we got quite a lot of mileage out of that question posed by a random internet user. Cheers Ash.
It is interesting though. If you have two objects of vastly different mass "bounce"...
The distinction between a ground that moves and doesn't move is actually critically important when we consider the COR of the ground in this scenario. If the ground is some immovable perfectly rigid...
Rather than assuming an infinite mass, it's better to just measure h as a fixed point from the ground, which means h moves if the ground moves. That essentially fixes the ground in the sense that it...
Thing is though, we're to assume that the laws of physics apply, it's just we're making some seriously absurd assumptions regarding isolated systems and the ideal conditions.
If the laws of...
I think the concept of "ground" is open to interpretation.
You're imaging a flat barrier while I'm imagining a planet-like object. So I'm visualising a mutual gravitational interaction between...
I thought it was b/h, but that's because I assumed the scale from 0 to 1 was linear. But still, assuming ideal conditions with perfect elasticity and no other influences, the answer is still a COR of...
Questions -
Is the ground perfectly elastic?
Is the ball rotating? Is the ground rotating?
What are the mass ratios between ball, ground and observer? Are there any other masses in this...
Not enough information.