Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
altrego99
on May 25, 2012
|
parent
|
context
|
favorite
| on:
Retailer uses 3D QR codes and the Sun to time limi...
It will be an interesting challenge to write a program that can 'scan' the QR code at all time.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
