Recent content by weirdoguy

Me too. I had it, sold it, and bought it again recently, so that I can solve problems from it (I didn't do it the first time).

What's the difference? Multiplication is commutative, you can write 1 wherever you want. My thought: you are overcomplicating things.

And the answer is yes, whether you write gamma, or write square root explicitly. You can't avoid it.

How? It's just a notation. Writing down this square root explicitly every single time is tiring. That's all to this. EDIT: You've had similar thread about this: https://www.physicsforums.com/threads/lorentz-factor-in-textbooks-on-special-relativity.1078774/

Where in the world did you even get this from?

In short: posting your theoretical work in any way or form will be violation of forum rules :wink:

Ok, I thought about it, but I felt that there is something more to that. Thanks! :oldbiggrin:

Hello everyone! So I'm working through problems from this years' polish physics olimpiad, and I have a problem with one problem (I google-translated it, hope it's not a problem): A flat wall contains three equidistant, thin slits of identical length. The distance between adjacent slits is d =...

It's not about IQ, it's about knowledge one has.

I would also add, that because it's so important practically, it's studied experimentally a lot.

Who are "they"? Not mathematicians obviously.

In Poland, to teach in high school, one has to have masters degree. If she has masters in maths and still think that 0,(9) is not 1, then I think this case is lost... By the way, I think I used polish sentence syntax to build my first sentence, but I'm too tired right now to come up with...

Energy is a conserved quantity associated with time-translation invariance of action (certain integral of lagrangian). That's general definition, applicable to both quantum and classical physics. "Abilit to do work" is from elementary school physics. Nonsense. What you meant is that...

It does not, not in the sense "interpretation of QM" is understood here.

It is VERY far off, and one need only very basic understanding of physics to see that. Energy has a very specific definition (do you know that definition?) and is a NUMBER. Matter is not number.