Shape and Size Constancy

• We expect runways to have the shape we're used to; larger runways look nearer, smaller runways look distant.
• We expect runways to have the same length: upsloping runways look shorter and seems close (we feel low), downsloping runways look longer than the one at home and we feel high.
• We expect runways to have the same width: wide ones look nearer, and we flare high; narrow runways seem farther away, and catch us before we can flare.

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