can browse throughout the gallery by clicking the navigation
arrows or any page number. If you are interested in licensing or syndicating our
intriguing perception and optical illusion contents, you
will find all usefull info here.
the tubular poles diverging at the top (where the signposts
they are straight and parallel! This is a neat version
of the twisted cord illusion.
Lab Illusion Galleries & Stores
can use the image above in your non-commercial web
page for free as long as you leave the copyright and
author's info intact and link to
us. You will find here more
information regarding the reproduction and licensing rights.
A. Sarcone and Marie J. Waeber, designers and writers,
are specialists in creative learning. They create and invent
educational manipulatives and thinking games which help teach
mathematics, visual and plastic arts. Their maxim is: be
curious first!. In 2018, they won
the prestigious Royal
Society's Young People's Book Prize (click here to
get more info about the authors).
Lab Books To Delight Your Eyes & Mind!
Read here before copying and using any of our images
or texts. Thanks