More companies are learning the importance of destructive technologies—innovations that hold the potential to make a product line, or even an entire business segment, virtually outdated.

The train CRH380A broke a world speed record Friday when it reached 486.1 km per hour on its run between Zaozhuang and Bengbu, which is a segment of the Beijing-Shanghai high-speed rail line.

To use volume as a building block for a code block that returns the length of a line segment, I can perform either partial application or currying.