August 6, 2017

August 4, 2017

Alex and I brought six electronic demos for Take Our Sons and Daugters to Work Day.

July 29, 2017

Alex received an early present for his birthday: a Tesla coil! It can make music.

July 4, 2017

Alex demonstrates that you can transmit sound with light.

July 1, 2017

Alex's entry to the Flashing Light Prize 2017

March 25 16, 2017

Alex used a class-D amplifier, an old iPod box, and some parts from Radio Shack to create his own amplifier. He then hooked it up to some salvaged speakers he put in some cardboard boxes. It worked the first time.

March 16, 2017

March 13, 2017

March 12, 2017

Alex wanted to know what salt and salt water did to an electric motor.

February 26, 2017

November 15, 2016

Simple calculator in the Scratch programming language

October 16, 2016

Alex and I built this soldering fume extractor. A 20 foot dryer duct vents to a panel that fits in a window.

September 9, 2016

Lego Differential Gear with Motor

August 27, 2016

Alex built a Lego rope crawler with a little help from dad.

July 31, 2016

Alex received a 50 watt and a 100 watt LED array. Here he is testing one of them at 25.8 volts driven by an adjustable boost converter.

June 9, 2016

I have no idea what was going on here. Alex with some... friends.

June 3, 2016

Alex won a Parrot Jumping Race drone.

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