optical illusion

Look Twice: These Incredible Pictures Will Blow Your Mind

These 11 photographs seem at first sight quite clear ... until you look a second time and realizes that it is something else actually. 1. No, this is not a UFO full of aliens coming to conquer the earth

The astonishing ‘magic helicopter’ that appears to fly without using its rotors

The strange phenomenon boils down to the camera’s shutter speed and frame rate, which can distort the appearance of spinning objects when synchronized, Joinfo.com reports with reference to Mail Online. The blades at some points can be seen shifting slightly – but,