Popular Science News | Print Playmate on a Pinhead

Popular Science News – printer resolution is how many dots of colour can be printed per inch (dpi). Well researchers at the Agency for Science, Technology and Research (A*STAR) in Singapore have managed a record breaking 100,000 dpi, ten times more detail than is commercially possible until now. With that kind of resolution they can easily print a high quality picture on a pinhead, in fact they could print secret text on documents, invisible to the naked eye. Well why would they want such technology unless it had a military application?

So why the talk of printing a Playboy playmate? That’s because a widely used standard image of the playmate Lena is the name given to a 512×512 pixel standard test image which has been in use since 1973 and was originally cropped from the centerfold of November 1972 issue of Playboy magazine. It is a picture of Lena Söderberg, a Swedish model, shot by photographer Dwight Hooker.

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