Make Your Own Precise Vibration Sensors 05/28/2015 Detect motion and even individual footsteps with DIY sensors better than your smartphone’s.
Thomas Jefferson: Maker-in-Chief 04/13/2015 There is no “Maker in Chief” in the U.S. Constitution, but at least one president, Thomas Jefferson, certainly deserves that...
Build a Twilight Photometer to Detect Stratospheric Particles 03/10/2015 Have you wondered why some sunsets are so spectacular and others so drab? This ultra-sensitive photometer project will allow you...
How Your Failed Project Made You a Better Maker 02/25/2015 My DIY wearable gadget never sold — but it led to my first article, a kit company, and a career...
The Kit That Launched the Tech Revolution 01/08/2015 On the 40th anniversary of the Altair 8800 microcomputer: 1975–2015. Though primitive by today’s standards, the Altair 8800 is widely...
Amateur Scientist: Experimenting with Light and Dark Sensors 04/24/2014 Use cheap photoresistors, phototransistors, and photodiodes to make powerful sensors for your projects.
Mars-Bot: Adding Science to Robotics 04/09/2014 A simulated space mission could leverage the popularity of robotics competitions to teach science.
How to Use LEDs to Detect Light 01/08/2014 Since an electromagnetic telephone receiver can double as a microphone, can a semiconductor light emitting diode (LED) double as a...
Amateur Scientist: Tracking Heat Islands 01/07/2014 Use data loggers and DIY sensors to map temperatures where you live. Towns are hotter than countryside, parking lots are...
How to Make and Use Retroreflectors 10/07/2013 They're everywhere — in car taillights, traffic signs, and reflective tape on clothing. Unlike an ordinary mirror, a retroreflector bounces...
