Make a High Voltage Plasma Arc Speaker 05/12/2015 Create a high-voltage loudspeaker that makes sound waves by vibrating an electric arc.
Godzilla Detector: A Retro Digital Geiger Counter 06/05/2014 Whether it’s the “Fukushima plume” or giant monsters on your mind, the classic Civil Defense CDV-715 Geiger counter has a...
Hand-Crank Geiger Counter 08/27/2013 The atomic age meets the Victorian -- charge up this Geiger counter's high-voltage tube using a unique mechanical oscillator that...
Geiger Counter 12/18/2012 This DIY Geiger counter clicks and flashes an LED each time it detects a radioactive particle. It works with most...
ESP/psi Testing Lamp 12/18/2012 Albert Einstein once wrote that God does not play dice with the universe. To which Niels Bohr (or Enrico Fermi)...
