by wpengine | Aug 11, 2021
Tiny semi-conductor particles measuring a few nanometres in size. Quantum dots have optical and electronic properties that differ from larger particles due to quantum mechanics. They may be ‘tuned’ to provide specific visual effects.
by wpengine | Aug 11, 2021
Two-dimensional matrix barcodes that can be used to identify URLs, so that smartphone users can photograph the code and retrieve information about its originator’s company or product. QR codes can store up to 4,296 alphanumeric or 7,089 numeric characters and are...
