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May 7, 2013 12:28 am GMT
In order to discreetly reach abused children, one aid organization designed a clever billboard that only displays a hotline number for people shorter than 4'5". The secret is a precisely serrated surface, a Lenticular lens, that reflects light differently to those looking from above and below a specified height. Shorter people (children) see the following message on a street sign: "If somebody hurts you, phone us and well help you," along with a confidential number to call the Spanish organization, Aid to Children and Adolescents.
Original Link: http://feedproxy.google.com/~r/Techcrunch/~3/i2m_EzgQ38g/
An Anti-Abuse Ad With A Secret Message Only Children Can See
In order to discreetly reach abused children, one aid organization designed a clever billboard that only displays a hotline number for people shorter than 4'5". The secret is a precisely serrated surface, a Lenticular lens, that reflects light differently to those looking from above and below a specified height. Shorter people (children) see the following message on a street sign: "If somebody hurts you, phone us and well help you," along with a confidential number to call the Spanish organization, Aid to Children and Adolescents.Original Link: http://feedproxy.google.com/~r/Techcrunch/~3/i2m_EzgQ38g/
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