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Switch - Double Pole - 20 AMP | Hog Slat
Single-pole, double-throw (SPDT) A.K.A. The 3-way switch – Basic Lighting for Electricians: Level 1
Our magnetic poles shifted in the past. Are we overdue for another shift, and how will that affect our electronics, the continents, and the Sun's effect on us while the poles shift?
When north goes south: Is Earth's magnetic field flipping?