Why does it look like this plane is floating in the distance?

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In summary, while biking, the speaker saw a plane flying in the distance which appeared to be floating due to an optical illusion. The plane was going in a different direction from the speaker and was on the right side, straight ahead. This illusion is caused by the perceived movement of objects that are far away, making them seem slow. This effect can be seen in other situations as well, such as when riding down a road and observing objects of different distances.
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sherzod
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I was biking the other day and saw a plane flying in the distance. It was a weird illusion where it looked like it was floating. Let's say i was going North and plane was going South East also the plane was on the right side, straight ahead.
 
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Things that are far away look slow for the same reason they look small. When there is a third object (trees, clounds) that stays in line with you and the observed object, it looks like the observed object isn't moving..
 
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sherzod said:
I was biking the other day and saw a plane flying in the distance. It was a weird illusion where it looked like it was floating. Let's say i was going North and plane was going South East also the plane was on the right side, straight ahead.

This optical illusion happens all the time with scenery; there we're so accustomed to it that it doesn't surprise us.

Next time you're riding down a road in reasonably open terrain (so that you can see objects near, distant, and in between) look to the side. You'll "see" that near objects (trees by the road) are moving backwards past you, distant objects (mountains on the horizon) are moving with you, and somewhere in between there's a point where objects seem to be fixed in place. Your airplane just happened to be at that point. The illusion is much more startling with an airplane because there are no other objects nearby that we can relate its position to.
 

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