50 Things That Made the Modern Economy

Glasses

Oct 28, 2019
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INSIGHT

Augmented Reality As Practical 'Glasses'

  • Augmented reality acts as modern 'glasses' by overlaying instructions onto work, saving seconds and improving precision.
  • Tim Harford shows AR like HoloLens reduces a two-day task to two hours by guiding the technician step-by-step.
ANECDOTE

Origins Of Optical Understanding And Glasses

  • Hassan ibn Al-Hatham proved vision works by light entering the eye, changing centuries of theory through experiment.
  • In late 1200s northern Italy craftsmen created the first reading glasses, sparking wider public use.
INSIGHT

Lenses Fueled Scientific Revolutions

  • Spectacle innovations (concave and convex lenses) enabled microscopes and telescopes and expanded scientific discovery.
  • Harford links 13th–17th century lenscraft to breakthroughs that opened new scientific worlds.
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