Motion Induced Blindness
"What to see...
Below you see a rotating array of blue crosses and 3 yellow dots. Now fixate on the centre (watch the flashing green spot). Note that the yellow spots disappear once in a while: singly, in pairs or all three simultaneously. In reality, the 3 yellow spots are continuously present, honest!"
via msf-usa.org
"Bird in the Sky"
Rows of birds appear to move rightward or leftward.
Copyright Daniel Picon 2012 (September 26)
McLean’s Optical Illusions : The Desert
"Optical illusion disc which is spun displaying the illusion of motion of a ball with a wedge-shaped piece missing passing through a hoop and of a monkey swinging on branches of a tree and a zebra jumping through an opening between two trees in a circle at the outer edge of the disc."
via retronaut.com
Rotating Hearts
The Gravity of Illusion : Dyson’s Mysterious Garden Fountain
"A simple water feature can take an ordinary deck and turn it into something magnificent. But a water feature fashioned by celebrated industrial designer James Dyson (of Dyson vacuums fame) is bound to be the most unforgettable water feature ever. This fountain, part of an overall garden design dubbed “The Wrong Garden,” was created by Dyson for the Royal Horticultural Society’s 2003 Chelsea Flower Show. Like everything else designed by Dyson, it accomplishes a seemingly impossible task with highly astonishing style: in this case, it makes water flow uphill."
via dornob.com
Did Fata Morgana Help Sink the Titanic ?
"Did this mirage help sink the Titanic? The optical phenomenon called Fata Morgana can make strange shapes or a false wall of water appear above a watery horizon. When conditions are right, light reflecting off of cold water will be bent by an unusual layer of warm air above to arrive at the observer from several different angles.
One hundred years ago... such a Fata Morgana mirage might have obscured real icebergs from the clear view of crew onboard the Titanic. Additional evidence for this distortion hypothesis arises from the nearby vessel SS Californian which reported sightings consistent with Fata Morgana mirages. The above Fata Morgana mirage was taken off the US Pacific coast in 2008."
via apod.nasa.gov
"Strong Morning Sunlight"
Copyright Akiyoshi Kitaoka 2012 (January 25)
"It looks very bright when the dark image is changed to the bright one."
Elephant Pareidoliaon on the Elysium Planitia of Mars
"There may not be any green men on Mars, but there sure is an elephant there! The image above is actually of the dried flood of lava over the Elysium Planitia volcanic region of Mars, as captured by the Mars Reconnaissance Orbiter."
via neatorama.com
Here Comes Another Headache !
"For some reason the image just won’t stop moving. It makes my head hurt. Much. And when I tell you its not even an animated GIF, how would you explain this! I’ve read somewhere on web that it has something to do with your eyes’ microsaccades, the small, jerk-like, involuntary eye movements we all experience but usually don’t notice. I just hope I don’t give someone a seizure with this one !"
via moillusions.com