Rising rates of heart rhythm problems are colliding with an aging population and crowded hospitals. At the same time, many ...

Origami is the ancient Japanese art of paper folding. One uncut square of paper can, in the hands of an origami artist, be folded into a bird, a frog, a sailboat, or a Japanese samurai helmet beetle.

Modern origami was popularized throughout Japan and the United States through exhibitions of the work of Akira Yoshizawa, the grandmaster of origami, who developed a standard way to teach folding ...