Even if you have unadulterated visual sensation , you ca n’t always hope what your eyes perceive — take this mind - bending optical magic trick fromBig Motoring Worldas an example . Most people who see it will say that the car “ closer ” to the viewer are smaller than the ones further back in the scene . If that ’s your first effect , take a closelipped smell : Measuring the vehicles reveals that they ’re all the same size .
If your eyes were tricked by the image , that means they ’re working just hunky-dory . Objects appear openhanded or smaller in your theater of operations of vision depending on how almost or far they are , so your visual system uses circumstance clue to ascertain their true size . This mechanics can be hacked to grow something called thePonzo Illusion . Italian psychologist Mario Ponzo first illustrate it in 1911 using two lines laid over a sketch of train tracks .
The horizontal lines are both the same size , but the human brain take for granted the one at the bottom where the track are widest is closer , while the one further up where the tracks are minute is in the distance . The brain align the size of it of the objective to account for their perceived distances . In reality , the lines are part of the same two - dimensional figure , and any difference in size or space is an illusion .

The video at the top of the article employs this same burden . alternatively of string tracks , it uses a road that appears to narrow down as it stretch out toward the metropolis skyline in the distance . This makes the two gondola nearer to the horizon await larger , when in reality they ’re all the same size . If you do n’t believe your eye are lying to you , holding your fingers up to the cars on the screen should chop-chop dispel the semblance .
Not every guileful image can be perplex so easily . Here are someaward - winning optic illusionsto give your brain a physical exercise .
