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I learned some new stuff about climate change today that I think is interesting.


If we released *all* the carbon trapped in *all* the fossil fuels and put it into the air, well... That's...

There's nothing wrong with reducing the uncertainty in either 1 of the terms on the LHS of the inequality, provided the uncertainty in the other value is of no concern to you.
This principle is what...

My point is that whichever you choose to use in the Buckingham Pi method is irrelevant.
The "unknown constant" that Buckingham Pi cannot solve for just absorbs or corrects for the divisor of 2pi.
...

The magnitude was the same, but the units were off.

Which means I made yet another error somewhere in my calculation.

L_Planck = SQRT(hbar G / c^3)

What I was trying to calculate was...

It's not remotely the same.

h = 6.626(10)^-34 J s

I did make a mistake in my initial calculation.

When I added the 2 equations, I accidentally said 1 + 1 = 0, which left we with the incorrect answer y = z = 1/2 instead of 1.

So the result I...

I can explain how I used the Buckingham Pi method to calculate it. I can't explain what it means, 'cause I never introduced any physics into my calculation.

Here's how it goes. It's a lot of...

Just for kicks, I calculated the Planck length-second.

With h
~4.051(10)^-35 m s

With h_bar:
~1.616(10)^-35 m s

where m s is meters*seconds, not milliseconds.

If you were coming toward me, and accelerated through c...
Until you reached c, I'd see you approaching from a long, long way off.

Then the moment you matched c, I'd suddenly see you teleport to...

But moving faster than c is moving backwards in time (at least in some inertial frames).

Make every morning Sunday spliff time, IMO.
The world needs more people who think critically about ... literally whatever they're passionate about.
I don't care what avenue anyone takes to find...

I mean... I really like this thought process.

In a sense, all particles always move at c. but that's a tricky one to unfold, and frankly, you're probably better suited to do so than I.


I'm...

I think I see what you're asking. Help me if I've misinterpreted you.

The radius of the event horizon can be calculated. In that sense, it's a trick of math. But what separates it from being a...

I feel like in the latter parts of this post, you've conflated the Planck constant and the Planck length as the same thing.

I agree that there's a lot of misinformation about the significance of...

The phase space thing isn't so hard to understand. Just a fancy name for a familiar thing.

Replace the x and y labels on your axis with any 2 other things. Tada. You made a phase space!
...

Well, they got part of it wrong, but I'm willing to let it slide for their otherwise assuming a tone I rather enjoyed.

They said E = n h 2 pi w
Should be E = n h w/(2 pi)

The relationship...

Why use h-bar and not h?

The difference is only a factor of 2 pi, but which one you choose to use in the calculation of the Planck Length will obviously change the value you calculate.

So which...

c and G are not math tricks. They're constants you have to go out and measure. There's no predictive model of what those values *should* be, there's only the busywork of actually doing the science...

Perfect rigidity is problematic in the same ways, it just takes a bit of Einstein to see it.
You can google Born Rigidity (named after physicist Max Born) to see why it's problematic, but it's...

I wonder if there's anything I can possibly say that will make you believe that the only thing the Plank length tells us is that our model stops working in the limits of the very very tiny. It makes...

"The COR is a property of a pair of objects in a collision, not a single object. If a given object collides with two different objects, each collision would have its own COR."

From the wikipedia...

I need to google if COR is a single-particle property, or a 2-body interaction property.
I feel like it's the latter, but can't commit.


Easiest to just ignore the complications and treat the...

My point is that the internal energy of the ball has gone up, and that energy came from somewhere.

If anything that is not the mechanical energy goes up, then the mechanical energy must go down to...

These are valid points.

If the ground's gravitational mass is infinite, the ball's energy upon contact is infinite, and it will have long since dissociated from being anything you could reasonably...

I mean... it is linear in speed, it's just nonlinear in energy.

Max height of an object in projectile motion is a measurement of it's total mechanical energy (simplified to Potential + Kinetic,...