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Semelhante a Test Your Observation (20)
Test Your Observation
- 2. Stare at the cross and you will see a green dot circling.
- 3. Stare at the black dot in the middle, and you will find the clouds of colours will disappear.
- 4. Stare at the blue dot in the centre and it will disappear slowly.
- 11. What will happen if you stare at the little black dot in the centre, moving your head back and forth?