ScienceDaily

Holographic message encoded in simple plastic

 Quantum Physics News
 18 March 2024
Important data can be stored and concealed quite easily in ordinary plastic using 3D printers and terahertz radiation, scientists show. Holography can be done quite easily: A 3D printer can be used to produce a panel from normal plastic in which a QR code can be stored, for example. The message is...

Satellites for quantum communications

 Mathematics - General News
 13 March 2024
Through steady advances in the development of quantum computers and their ever-improving performance, it will be possible in the future to crack our current encryption processes. To address this challenge, researchers are developing encryption methods that will apply physical laws to prevent the...

Method rapidly verifies that a robot will avoid collisions

 Mathematics - General News
 07 March 2024
A new safety-check technique can prove with 100 percent accuracy that a planned robot motion will not result in a collision. The method can generate a proof in seconds and does so in a way that can be easily verified by a human....

Drawings of mathematical problems predict their resolution

 Mathematics - General News
 07 March 2024
Solving arithmetic problems, even simple subtractions, involves mental representations whose influence remains to be clarified. Visualizing these representations would enable us to better understand our reasoning and adapt our teaching methods. A team has now analyzed drawings made by children and...

Maths: Smart learning software helps children during lockdowns -- and beyond

 Mathematics - General News
 27 February 2024
Intelligent tutoring systems for math problems helped pupils remain or even increase their performance during the coronavirus pandemic, according to a new study. Researchers analyzed data from five million exercises done by around 2,700 pupils in Germany over a period of five years. The study found...

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