By changing the luminance around the edges of the diamond and the background, you can make it look as though the diamond is moving up, down, right, or left. From a paper in i-Perception titled, "The Perpetual Diamond: Contrast Reversals Along Thin Edges Create the Appearance of Motion in Objects."
by Oliver J. Flynn and Arthur G. Shapiro.
Indian animal adoption campaign World for All commissioned these excellent posters in 2017 to promote the cause. [via]
As a high school student, I would have enjoyed learning to use ruled paper to draw anamorphic illusions instead of (not) taking notes. (via The Kid Should See This)
From @rainmaker1973 on Twitter: “Your visual system constantly adapts to all the external stimuli, and this is why if you stare at this picture, it will slowly disappear” Doesn’t work for me! Previously: Optillusions.
When it comes to passwords, there’s no such thing as paranoia. You want them secure and complex, and you definitely don’t want to repeat them on all your accounts. The trouble is, the internet seems to keep growing. And so do those accounts. Just one lockout from an important email or banking site is enough […]
With the rising temperatures on tap this summer, the climate is going to be a frequent topic of conversation, and those conversations won’t be happy ones. Luckily, there’s a way to do a little climate change of your own – in a safe and sustainable way. When it comes to personal air conditioners, EvaPolar is […]
Whether you’re using them for next-level selfies or steady tracking shots, gimbals are a must for anyone who wants to maximize the potential of these powerful smartphone cameras we’re all carrying around. But those smartphones are also supposed to be portable, and let’s face it: Gimbals tend to offset that advantage. Weighing in at just […]