Two-dimensional (2D) shapes are completely flat. 2D shapes can be found printed in a book or on a website. 2D shapes have sides and corners. A rectangle has 4 straight sides and 4 corners. A square is ...

Flat materials that can morph into three-dimensional shapes have potential applications in architecture, medicine, robotics, space travel, and much more. But programming these shape changes requires ...

Last April, an estimated 1.2 billion schoolchildren worldwide were unable to physically enter classrooms amid government-mandated lockdowns. E-learning and video conferencing platforms, such as Google ...