Once you take your new shoes out of the box, you probably never think about that piece of cardboard again. But why not reuse it to make these clever crafts?

IMPORTANT: Before you begin this tutorial, install the Vitis 2025.2 software. This release includes all embedded base platforms, including the VEK280 base platform used in this tutorial. Also download ...

The Prime Factor Algorithm (PFA) [1] is a Fast Fourier Transform (FFT) algorithm [2] discovered by Good & Thomas before the more popular Cooley-Tukey algorithm with some interesting properties. The ...

November 24, 2025 • Our annual reading guide returns with 380+ new titles handpicked by NPR staff and trusted critics. Find 13 years of recommendations all in one place — that's more than 4,000 great ...