weirdoguy's latest activity
-
weirdoguy replied to the thread Physics/math: how much knowledge does a high school teacher need?.It's free in Poland :oldbiggrin: But I didn't do those 'credentials', on purpose, so that I could not teach in normal school. -
weirdoguy reacted to PeroK's post in the thread Thankyou for providing this interesting forum. with
Like.
There's no easy way to say this, but your other post will be deleted by the moderators in due course. In fact, it's gone already. It... -
For ##a^0=1## we have symmetry around ##a^0##: ##\frac{1}{a^{-1}} = a## ##\frac{a^1}{a^{-1}} = a \cdot a## For ##a^0\neq1## we don't...
-
weirdoguy reacted to Algr's post in the thread Will anyone alive today see a permanent colony on the Moon or Mars? with Like.
I understand "colony" as meaning that people move there expecting to live their whole lives, get married, and have kids who also live...
-
weirdoguy replied to the thread Quantum Textbook Sequence Request: Entering B.Sc. Physics (Theoretical Focus).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).
-
weirdoguy reacted to sbrothy's post in the thread Speaking of Lorentz-Fitzgerald Contraction... with
Haha.
-
I don't understand again. ##a\cdot a\cdot a\cdot a^2## ##a\cdot a\cdot a\cdot a^1## ##a\cdot a\cdot a\cdot a^0## What is the next step?
-
This is getting to be a very boring thread. It's as if someone thinks it could be possible to prove this stuff actually wrong!
-
weirdoguy replied to the thread Undergrad Why ##a^0=1##?.What's the difference? Multiplication is commutative, you can write 1 wherever you want. My thought: you are overcomplicating things.
-
weirdoguy replied to the thread Does the Lorentz factor aid understanding of SR, or obscure it?.And the answer is yes, whether you write gamma, or write square root explicitly. You can't avoid it.
-
weirdoguy reacted to vela's post in the thread Does the Lorentz factor aid understanding of SR, or obscure it? with Like.
I use it mainly for the same reason @weirdoguy stated. It's a pain to keep writing the square root down, and not using it makes the...
-
weirdoguy reacted to bob012345's post in the thread High School Geometry Puzzle: Cut The Figure to Make Two Identical Parts with Like.
Same shape in this context means that they overlap, they are the same size and thus are identical so that is not a valid solution as I...
-
weirdoguy replied to the thread Does the Lorentz factor aid understanding of SR, or obscure 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...
-
weirdoguy reacted to Sagittarius A-Star's post in the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation with Like.
Diagram for Doppler calculation in posting #17, when Earth is moving away from Jupiter (not to scale):
-
weirdoguy replied to the thread Undergrad Why ##a^0=1##?.Where in the world did you even get this from?
