Noether’s Theorem ✍️
This equation reveals that every continuous symmetry in nature, a change you can make to a system without affecting its physical laws, brings about a conservation law. In simple terms, if the universe does not react to a certain change in perspective, it must keep a related physical quantity constant. For example, since the laws of physics remain unchanged no matter when you are (Time Symmetry), energy is conserved. Since the laws are the same regardless of where you are (Space Symmetry), momentum is conserved. Because they stay the same regardless of which way you face (Rotation Symmetry), angular momentum is conserved. This insight shifted our view of the universe. We no longer see conservation as just a series of lucky observations, but as a necessary outcome of the symmetry of space and time.
Someone told me:
"You could literally be fighting for your life, and some people will only notice how you're not showing up for them"
Let that sink in.
For the first time in my life, and I am not even joking about this, I have not heard any Christmas carols since this month began.
It could be because I don't watch TV but hata kwa magari huku nje na kwa majirani! Nothing!
What happened to the Christmas Spirit? Mlikunywa?