Enrique Badia Romero (who signs his work simply "Romero") is a Spanish comic strip artist, best known to English-speaking audiences for his work on Modesty Blaise. He is also the creator of the post-apocalyptic science fiction strip Axa, as well as a substantial body of work in his native Spain.
... diodes powered by a little generator embedded in the gyroscope.
The physics of this device looks confusing at first sight, but is surprisingly simple. It can easily be ...