Here comes a camera that can read through closed books
A team of five researchers from MIT and Georgia Tech have done just that. They have developed a camera that uses terahertz radiation to read the content of a closed book. The researchers developed the camera based on terahertz radiation. Terahertz radiation is one of the bands of electromagnetic radiation that falls between microwaves and infrared light. One of its properties is that it can penetrate surfaces. Additionally, different materials absorb different terahertz radiation at various frequencies....