Latest from John Iovine

Hand-Crank Geiger Counter


The atomic age meets the Victorian -- charge up this Geiger counter's high-voltage tube using a unique mechanical oscillator that...

Geiger Counter


This DIY Geiger counter clicks and flashes an LED each time it detects a radioactive particle. It works with most...

ESP/psi Testing Lamp


Albert Einstein once wrote that God does not play dice with the universe. To which Niels Bohr (or Enrico Fermi)...

Send this to a friend