To the function-based repurposing of natural-wonder materials, like silk and cashmere.

WSJ: We Can't Know What the Future Will Bring | Fashion

LEDs function by driving electrons across a junction between two semiconductor materials in which electrons move at different energy levels.

FORBES: LED Light Bulbs Mature At Last

Be polite and honest in discharging function, especially in obtaining documents, photographs and other informative materials useful for news reports.

UNESCO: Communication and Information

The traditional construction processes require both technical skills to design the building with consideration to its size, site and function, and aesthetic sense to select the lumber for the construction materials, cut and shape the wood, and assemble and interlock the separate wooden pieces without using nails, creating the so-called joints that withstand a millennium.

UNESCO: Culture

Given their guiding function for education agents and stakeholders, clear, inspired and motivational curriculum documents and materials play an important role in ensuring education quality.

UNESCO: EDUCATION