Why you can't tie knots in four dimensions

We all know we live in three-dimensional space. But what does it mean when people talk about four dimensions? Is it just a ...
The Guardian

Pinterest sacks two engineers for creating software to identify fired workers

Digital pinboard business cutting 15% of workforce as it invests heavily in AI Pinterest has fired two engineers who created a software tool to identify which workers had lost their jobs in a recent ...
C&EN

Symmetry-Reduction Enhanced Polarization-Sensitive Photoresponse Based on One-Dimensional van der Waals Materials

Institute of Physical Science and Information Technology and Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China ...
IEEE

A Novel Construction of Two-Dimensional Z-Complementary Array Code Sets Based on Extended Boolean Functions

Abstract: Two-dimensional (2-D) array sets with good 2-D correlation properties have received considerable attention in wireless communication systems. This paper focuses on 2-D Z-complementary array ...
IEEE

Design of a Flexible Push-Button Two-Dimensional Ultrasound Array Probe

Abstract: In order to solve the real-time positioning problem of flexible wearable ultrasonic transducer array unit under dynamic conditions, a new transducer array based on button flexible structure ...