We used our toy cogs to see which way each cog would turn if we twisted only one cog.
If we have two cogs they spin in opposite directions, but if we have 3 cogs, the two outside cogs spin in the same direction while the middle one spins in the opposite direction. The same happens with our lego cogs.
If we have two cogs they spin in opposite directions, but if we have 3 cogs, the two outside cogs spin in the same direction while the middle one spins in the opposite direction. The same happens with our lego cogs.
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