system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do trains make turns if their wheels spin at the same speed on both sides?
gpt
Train wheels are actually conical. So, when a train turns, it slides to the larger part of the cone on the outside wheel and the smaller part on the inside wheel. That way the wheels still turn at the same rate, but their radii are different.