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Scientists have made a map of the Americas from... DNA strands! They've also made other pictures, such as a smiley face and a trippy hexagon. I guess "DNA" is now a new.. genre, of art.

PixelRoller is a paint roller that paints pixels, designed as a rapid response printing tool specifically to print digital information such as imagery or text onto a great range of surfaces. The content is applied in continuous strokes by the user. PixelRoller can be seen as a handheld “printer”, based around the ergonomics of a paintroller, that lets you create the images by your own hand.
Be sure to check out the other PixelRoller video and the other cool pixel related products such as the Pixel Tape!

Microsoft's Photosynth takes collections of images, analyses them for similarities, and then displays them in a reconstructed 3D space.

The technology works by scanning collections of photographs, which can be taken from different cameras at different times. It picks out distinctive features in each image and cross-references them against the other photographs, checking for similarities.

This allows it to pinpoint a feature's 3D position and to also calculate where the position of the camera would have been when the picture was taken.