optical illusion

When it came, the effect was instantly disorienting, like switching between images in an optical illusion.

Seth takes the reader through a fun litany of optical illusions and demonstrations, some quite familiar and others less so.

Add that to the theory that various forms of life travel across the universe through asteroids and other debris, and you have a hypothesis more credible than distant sightings by pilots that could be explained in part by optical illusions.

One of the areas of cultural study that first hooked her had to do with optical illusions.

Leaning at a seemingly unsustainable angle, Menashe Kadishman’s “Suspended” is a clever optical illusion that made me feel it was paused in time, but it could come crashing down if I hit the proverbial play button.

Strauss-Kahn's sudden, astounding, and very definitive-seeming fall might make an optical illusion of his comeback rise.

The burning atmosphere, the motionless air caused doubtless the optical illusion.

But they had, or maybe it was optical illusion on my part, illusion fostered by mental unrest.

When the hand moves back from the brighter light, as it disappears,—is it an optical illusion?

According to Helmholtz, it is senseless to ask whether cinnabar is red as we see it or is only so as an optical illusion.

I stand, as it were, before the raree-show: I see the little puppets move, and I ask whether it is not an optical illusion.