3 ms·

Is it?

• nerdsniper 9mo ago
  Flash memory (quantum tunneling), lasers (stimulated emission), transistors (band theory), MRI machines (nuclear spin), GPS (atomic transition), LED's (band gap), digital cameras (photoelectric effect), ...the list does, in fact, go on, and on, and on.
  • narcraft 9mo ago
    Did you intentionally list things that are clearly not essential to day-to-day life?
    • refulgentis 9mo ago
      I'd argue flash memory and transistors certainly are.