Why you can’t tie knots in four dimensions

We can tie knots in three dimensions because one-dimensional ropes “catch on each other”. This is why a long rope wound around itself, if done right, won’t come apart. We trust knots with our lives ...
C&EN

Three-Dimensional-Printed Flexible Nanosilver Electrode Array for Parallel and Robust Intracellular Electrophysiological Recording

General Surgery Department, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Children’s Health, Hangzhou 310052, China Department of Chemistry, School ...
IEEE

Three-Dimensional Position Presentation via Head and Waist Vibrotactile Arrays

Abstract: This article introduces a novel system designed to convey the three-dimensional positions surrounding the user. The system incorporates circumferential vibrotactile arrays strategically ...
Scientific Research Publishing

Developing Three-Dimensional Beamshaping Techniques on Volumetric Random Arrays to Suppress Array Sidelobes ()

This paper proposes a three-dimensional (3-D) amplitude tapering technique on volumetric random arrays to minimize array sidelobes and emulate phased array operations on mobile platforms. Our ultimate ...
C&EN

A Three-Dimensional Neuromorphic Photosensor Array for Nonvolatile In-Sensor Computing

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China Center of Materials Science and Optoelectronics Engineering, ...
GitHub

"# The Basics of NumPy Arrays"

"Data manipulation in Python is nearly synonymous with NumPy array manipulation: even newer tools like Pandas ([Part 3](03.00-Introduction-to-Pandas.ipynb)) are built around the NumPy array.\n", "This ...