¿How are optical illusions and the Gestalt principles/laws related? ¿Cómo se relacionan las ilusiones ópticas y las leyes Gestalt?

The major axis of earths orbit is 299,200,000 km, and the distance between the foci is 4,999,632km calculate the eccentricity of earths orbit. how does this value compare to the value noted in. the digging dipper?

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What does it mean to have a bias (for example your bias of bts)?