Invisible QR Codes Put Printers Ahead Of Counterfeiters
Using a special kind of ink that can only be seen in infrared light, invisible quick-response (QR) codes can now be printed onto regular documents, making them harder for counterfeiters to duplicate.
Article written by guest writer Kecia Lynn
What's the Latest Development?
You may have seen those odd-looking black and white stamps on an advertisement or similar document. QR codes, as they're called, are similar to barcodes in that they contain data about the object they're stamped on. Now a team from two South Dakota universities have come up with a way to put QR codes on documents that are invisible to the naked eye but visible to a smartphone camera or laser-light reader. The key is in the ink: The nanoparticles in it help it to glow bright blue or green when exposed to near-infrared light.
What's the Big Idea?
Invisible QR codes are just one more way to stop counterfeiters from duplicating sensitive documents. In addition to the code data itself, the researchers figured out a way to embed a microscopic image into the stamp as well, making the document that much more difficult to forge. The ink can be used with a desktop printer to allow printing on ordinary documents, and paper's not its only medium: "[B]ecause the code can be printed on plastic or even glass, manufacturers could use it to authenticate other items."
Photo Credit: Shutterstock.com
Swipe right to make the connections that could change your career.
Swipe right. Match. Meet over coffee or set up a call.
No, we aren't talking about Tinder. Introducing Shapr, a free app that helps people with synergistic professional goals and skill sets easily meet and collaborate.
A new study explores how certain personality traits affect individuals' attitudes on obesity in others.
- The study compared personality traits and obesity views among more than 3,000 mothers.
- The results showed that the personality traits neuroticism and extraversion are linked to more negative views and behaviors related to obesity.
- People who scored high in conscientiousness are more likely to experience "fat phobia.
The rise of anti-scientific thinking and conspiracy is a concerning trend.
- Fifty years later after one of the greatest achievements of mankind, there's a growing number of moon landing deniers. They are part of a larger trend of anti-scientific thinking.
- Climate change, anti-vaccination and other assorted conspiratorial mindsets are a detriment and show a tangible impediment to fostering real progress or societal change.
- All of these separate anti-scientific beliefs share a troubling root of intellectual dishonesty and ignorance.
The history of the Geneva Conventions tells us how the international community draws the line on brutality.
- Henry Dunant's work led to the Red Cross and conventions on treating prisoners humanely.
- Four Geneva Conventions defined the rules for prisoners of war, torture, naval and medical personnel and more.
- Amendments to the agreements reflect the modern world but have not been ratified by all countries.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.