a. 🤷♂️🎄🗺️ What do I know?! I thought this advent calendar is about control and not geography?
b. 📐🧠🧭 Of course, NP = Not stable Pole and SP = Stable Pole
c. 🌍🔥🧊 Due to global warming, the ice at the north pole is melting (unstable), whereas Antarctica is a continent and cannot melt away (stable).
d. 📉📈⚙️ Of course, the north pole is unstable because it is located in the right half plane, whereas the south pole in the left half plane is stable.
e. 🌀➕➖ In any case, with these two poles, the world would be complex.
f. 📚🧑🎓⏳ I’m unsure about this, so I’m planning to take some control courses in 2026 to learn more about it.
Related control theory topic: poles and stability