We open on a simple question: how do you make a fighter disappear from radar without changing its shape? In this episode we trace radar-absorbing materials from German U-boat periscopes to modern ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

The clicking of a Geiger counter is well enough known as a signifier of radioactive materials, due to it providing the ...