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 ...
AOL

Archaeologists finally lift lid on ancient sarcophagus hidden beneath capital city

A remarkably well-preserved Roman sarcophagus has been unearthed in Hungary’s capital, offering a rare and intimate window into the life of a young woman who lived some 1,700 years ago. Archaeologists ...
Comicbook.com

2.5 Dimensional Seduction Season 2 Revealed With New Promo

2.5 Dimensional Seduction Season 2 was just announced at the end of the first season’s finale broadcast in Japan. Based on Yuu Hashimoto’s manga, the anime adaptation debuted in the Summer 2024 season ...
C&EN

Constructing Two-Dimensional, Ordered Networks of Carbon–Carbon Bonds with Precision

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Non-Commercial (NC): Only non-commercial uses of the work are permitted. Organic ...
IEEE

Two-Dimensional Remote Actuation of Centimeter-Scale Objects With a Concave Bottom Using Airborne Ultrasound

Abstract: We propose a method for two-dimensional remote position control of centimeter-scale objects using airborne ultrasound. To actuate objects 1–2 cm in size, previous studies utilized magnetic ...
C&EN

Nonclassical Crystallization Processes of Single-Crystalline Two-Dimensional Covalent Organic Frameworks

Controlling the two-dimensional polymerization processes of two-dimensional covalent organic frameworks (2D COFs) is essential to fully realizing their distinct properties. Although most 2D COFs have ...
IEEE

Two-Dimensional Repetitive Control of Uncertain Takagi–Sugeno Systems Based on a New Equivalent-Input-Disturbance Estimator

Abstract: This study presents a two-dimensional (2-D) repetitive control method to address the issues of periodic tracking and disturbance suppression in uncertain Takagi–Sugeno systems. The ...