Tags: barcodes, bernard silver, history of communication, history of information, History of QR codes, how QR codes work, Lagrange polynomial, Masahiro Hara, math, morse code, Norman Joseph Woodland, QR codes, quick-response code, reed solomon codes, samuel morse, science, universal product code, vericode, veritasium
How do QR codes work? (I built one myself to find out)
