Collection of Science Jokes P2

[jack action]

 

[davenn]

 

[davenn]

 

[Ibix]

Dewey decimal? Do we ever!

 

[jack action]

 

[jack action]

 

[Demystifier]

The Great Unification Theory that unifies physics with electric engineering:
$$i=j$$

 

[Demystifier]

Application of the Great Unification Theory above to quantum mechanics. The probability current in quantum mechanics for a particle moving in one dimension is
$$j=\frac{\hbar}{2mi} \left( \psi^*\frac{\partial\psi}{\partial x}-\psi\frac{\partial\psi^*}{\partial x} \right)$$
Using the unification formula above, the current can be written in the electric engineering form
$$i=\frac{\hbar}{2mj} \left( \psi^*\frac{\partial\psi}{\partial x}-\psi\frac{\partial\psi^*}{\partial x} \right)$$

 

[mfb]

Write it as $$i=\frac{\hbar}{2mi} \left( \psi^*\frac{\partial\psi}{\partial x}-\psi\frac{\partial\psi^*}{\partial x} \right)$$ and simplify: $$-1=\frac{\hbar}{2m} \left( \psi^*\frac{\partial\psi}{\partial x}-\psi\frac{\partial\psi^*}{\partial x} \right)$$

 

[Demystifier]

$$-1=\frac{\hbar}{2m} \left( \psi^*\frac{\partial\psi}{\partial x}-\psi\frac{\partial\psi^*}{\partial x} \right)$$

The left-hand side is real and the right-hand side is imaginary, which is only possible if both sides are zero. Hence the wave function is real (which is compatible with the PBR theorem) and $-1=0$ (which makes sense because one cannot have less than zero particles).

 

[fresh_42]

The Great Unification Theory that unifies physics with electric engineering:
$$i=j$$

Typical pop science chasing for headlines! I have made the effort and had a look in the original paper which this article relies on. And there it is said $i=\mathbf{\hat{j}}$.

 

[mfb]

Look at Mr. Fancy Hat here.

 

[DrGreg]

And there it is said $i=\mathbf{\hat{j}}$.

I think that implies $1 = 3$?

 

[chasrob]

How do you tell the difference between a teacher and a chemist?
Ask them to pronounce unionized.​

 

[davenn]

 

[fresh_42]

 

[Bandersnatch]

The really overweight black holes do order other kinds of food. But they take it home and when nobody's looking turn it into spaghetti anyway.

 

[mfb]

The really overweight black holes do order other kinds of food. But they take it home and when nobody's looking turn it into spaghetti anyway.

They do it at a place where no one can look anyway.
Smaller, less experienced black holes do it in places you can see.

 

[Bandersnatch]

They are indeed nasty, warped black holes, with a singular culinary purpose. Luckily one can recognise them in the crowd by their baldness.

 

[phinds]

Engineer, guy who didn't believe in Nostradamus, Ancient Aliens, the paranormal, and so forth, was give a book on prognostication. He figured it would be BS but he said it was amazing ... after skimming just the first 3 pages he was able to make an ironclad 100% guaranteed prognostication, which was:

I'm not going to finish this book.

 

[davenn]

 

[davenn]

 

[fresh_42]

 

[davenn]

View attachment 244073

indeed, it's ...

 

[davenn]

 

[jack action]

 

[Ibix]

My favourite element is Helium. I always speak highly of it.

 

[Ibix]

View attachment 244154​

I kind of want to work out where that pub is...

 

[DrGreg]

My favourite element is Helium. I always speak highly of it.

That's very noble of you.

 

[mfb]

He is everywhere!
Even in my signature.