As prices soar, Japan returns to human waste fertilizer

It's cheap, recycled, and has centuries of tradition: "shimogoe" or "fertilizer from a person's bottom" is finding new favor in Japan as Ukraine's war hikes the price of chemical alternatives.

In Asia, ancient writing collides with the digital age

As a schoolboy, Akihiro Matsumura spent hundreds of hours learning the intricate Chinese characters that make up a part of written Japanese. Now, the graduate student can rely on his smartphone, tablet and laptop to remember ...

Chinese writing: From complexity to greater complexity

The world's major writing systems have tended to simplify over time, with a notable exception: New research shows that the Chinese writing system has become increasingly complex over the course of its 3000-year history.

DNA strands create tiniest Smileys

Harvard University scientists on Wednesday said they had created Smileys, Chinese characters and card-game symbols at scales of billionths of a metre using strands of DNA.

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