A High Voltage Halloween
One of the neatest gadgets made possible by modern IC technology is the magnetometer. For less than $25, you can construct a fun and durable tool to measure magnetic fields (static or varying) produced by currents, permanent magnets, pieces of iron, or the Earth itself.
Make this interactive costume for exciting Halloween thrills and chills.
A powerful Van de Graaff generator can make for some hair-raising Halloween fun!
TechKnowledgey
by Jeff Eckert
Events, Advances, and News
Read about a virus generator being developed, a radio scrambler/descrambler, if Panasonic is sinking ... plus some other stuff you’ll want to know about.
Near Space
by L. Paul Verhage
Balloonsats and Attitudes Toward Science
began my investigation by becoming acquainted with what other people had to say about STEM in today’s world. Three issues made the greatest impression on me: the aging science and engineering workforce; the increasing competition from overseas; and the increasing importance of STEM in everyday life.
Q&A
by Russell Kincaid
Reader Questions Answered Here
A driveway system hack, fan speed control, and an LED array driver are some of the topics discussed this time.
The Spin Zone
by Jon Williams
Show Time!
Those that know me well know that this is my favorite time of year. Halloween is right around the corner and that's followed up by the Christmas "season" — a couple months where prop displays flourish and indoor/outdoor decorators feverishly work to eclipse their creations of years past. I love this season.
Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop 50: Fritzing With the Arduino — Part 2
Take that breadboard prototype, generae a schematic design, convert it to a printed circuit board (PCB) layout that can be manufactured — all using Fritzing. Part 50
