A new book imagines what the world would be like if Earth spun faster and faster until days just last two hours.

Abstract: A circular-polarized vortex beams generation with orbital angular momentum (OAM) based on a leaky-wave antenna (LWA) with substrate integrated waveguide is proposed in this letter. The loop ...

Abstract: We propose the design, implementation, and evaluation of an instantaneous angular speed (IAS) measurement system, namely Wi-Rotate, using commercial-off-the-shelf (COTS) WiFi hardware.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Frequency Division Multiplexing (FDM, a traditional information multiplexing method in communication systems, provides a viable way around this restriction. Professor Takeda added FDM to FPP as early ...