Some time ago, a dress was controversial on social networks. Some saw it as white and gold, while others claimed it was blue and black.

A mystery solved, this different perception of colors is related to the sensitivity of the retina.

New buzz with this dress that also changes color, but this time it is not due to our retina but to the material. In a video about Instagram, the dress changes from white to gold in no time at the touch of the young woman's hand. A new video that becomes viral ...

Less controversial than this dress that changed color according to our perception, its appearance and the process are more easily explained: sewn of reversible sequins with faces of different colors, the material allows the change of colors when returning the sequins of a simple gesture of the hand.

This technique, widespread in the textile industry, fascinates Internet users and counts so far nearly 12 000 views ...