📱 Nanotech all around you

Unit 2 · Molecules & everyday nano · 8 min

Transistors in a phone chip are only tens of nanometres across, with billions on one chip. Nano zinc oxide and titanium dioxide in sunscreen block UV without looking white. Nanostructures on lotus leaves make water roll off, and scientists copied them to make self-cleaning glass.

Words in this lesson

• 芯片 (xīnpiàn) — chip
• 紫外线 (zǐwàixiàn) — ultraviolet

Project: Find three things at home that may use nanotech (check the label or manual) and write what each does.