UV light patterns thermochromic crystals without damage, unlocking color-changing designs

Color-changing mood rings, forehead fever strips and car-shade indicators all change hues as they warm and cool, thanks to a ...

A single origin story for the Milky Way's most mysterious stars

Lurking at the heart of the Milky Way, Sagittarius A* (Sgr A*) is a supermassive black hole four million times the mass of ...
GitHub

ORIPA is a drawing software dedicated to designing the crease patterns of origami. The unique feature of ORIPA is calculation of the folded shape from the pattern.

The first version of ORIPA was released in 2005. ORIPA was made open source in 2012, and was pushed to Github in 2013. To find out more about using the software ...