• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

KB6NU's Ham Radio Blog

KB6NU's Ham Radio Blog
  • HOME
  • Study Guides
  • Teach a One-Day Tech Class
  • W8SRC Repeater Guide
  • Advertise
  • Hire Me

copper

Articles: Scrappy circuits, ham radio inspires student, why measurements are important, why copper is important

September 12, 2024 By Dan KB6NU Leave a Comment

Here are some articles I found intersting. The first details a cheap way to teach kids (and adults, too!) about circuits….Dan

Scrappy circuits

Circuit components made from dollar-store items.
Circuit components made from dollar-store items.
The best dollar you can spend on a child’s STEAM education is to take them to the dollar store, buy an electronic item, and then take it apart. Learning how a handheld fan, LED light, remote control, or headphones work will help show how wind turbines, traffic lights, speakers, keyboards, and other modern devices function. The next step is to take apart a dollar store item and make it better — combine two items, replace a switch, create something new and unique. Scrappy Circuits is the perfect way to get started. I first developed Scrappy Circuits with Chris Connors and Eva Luna while working at Xraise, an education outreach program at Cornell University. What began as an exploration of DIY switches ended later as a self-made invention system sourced from a fifty-cent LED tea light. Educators can build it with their class for about $20. Anyone with access to office supplies and a dollar store can make the five Core Bricks for about $1. Here’s how to create each one.

…read more


I think that we short-change ham radio’s usefulness in getting people to pursue STEM careers…..Dan

Ham radio inspired this Scranton University student to pursue engineering

Many college students participate in sports, listen to music, or play video games in their spare time, but IEEE Student Member Gerard Piccini prefers amateur radio, also known as ham radio. He’s been involved with the two-way radio communication, which uses designated frequencies, since his uncle introduced him to it when he was a youngster. His call sign is KD2ZHK.

…read more


I’ve always been something of a measurement nerd……Dan

Why measurements are important

Practically everything you use in your everyday life works because of measurement science. Without precise measurements, your car wouldn’t run, your phone wouldn’t work, hospitals couldn’t function, and the ATM would fail. NIST is the national measurement institute of the United States. Most people in the U.S. have no idea that there is a single organization within the federal government that makes sure all measurements in the U.S. are correct and trustworthy — and that they are accepted by other governments worldwide.

…read more


Copper is one of those things that we take for granted…..Dan

Copper: Conductivity Benefits and Environmental Impact

Most circuit designers probably aren’t thinking about, much less worrying about, the metal copper. But as the electrification of the world continues, copper conductors used in applications from microchips, other components and circuit boards, to household, industrial, and automotive wiring, and critical workhorses like batteries and electric motors, points to the need to spotlight its starring role.

…read more

Filed Under: Gear/Gadgets, People, Test Equipment Tagged With: copper, NIST, Scranton University, STEM

Primary Sidebar

No Nonsense Technician Class License Study Guide (for tests given between July 2026 and June 2030)

New No Nonsense Technican Class Study Guide now available!

The 2026 version of my Tech Class study guide is now available, and as always, the PDF version is FREE!. The ePub version costs $11.97, and a Kindle version and paperback version will be available on Amazon shortly.

Click here to get all of my "No Nonsense" study guides.

Also available: The CW Geek's Guide to Having Fun with Morse Code

W5SWL.Com
Retevis Ailunce H1 DMR Radio
DXpander: Cobweb antennas, Laser Cutting

You’ve got mail!

Enter your email address below and get an email every time I publish a new post.

Email


I frequently teach classes to help newcomers get their licenses. The next class will take place on Saturday, February 7, 2026 on the University of Michigan campus. Click here for more information.

If you can't make the class, subscribe to the mailing list to be notified of when the next class will be held.

You can always download my free study guide, and if you have any questions about the classes, or amateur radio in general, please feel free to email me directly.

Support KB6NU.Com

Donate $7.30 and get two of these cool stickers. Measuring 4.25-in. W by 2.75-in. H, it's perfect for your car, your shack, or wherever!

Contact me

If you have a question or comment about one of my blog posts, or a question about any of the material in my study guides, or just a question about ham radio in general, you can email me at [email protected].

Blogs You Should Also Read

  • AE5X: A CW-centric blog from Kingswood, Texas
  • K0LWC Blog
  • LA3ZA Ham Radio Blog
  • Little Radios, Big Fun – WB3GCK
  • Mr. Vacuum Tube's Blog
  • Radio Artisan – K3NG
  • The K0NR Weblog
  • VE3WDM's QRP Ham Radio Blog
  • W2LJ’s Blog

Ham Radio Websites

  • Dashtoons – The Hammin' Comedy by Jeff K1NSS

Podcasts

  • ICQ Podcast
  • Linux in the Ham Schack
  • No Nonsense Amateur Radio Podcast
  • Resonant Frequency Amateur Radio Podcast

Recent Comments

  • Dan KB6NU on Finally, a Loop for 10m.
  • Dan KB6NU on 1930s cards for my collection of QSLs from stations whose callsigns spell words
  • Sean on Finally, a Loop for 10m.
  • Bill Waslo on 1930s cards for my collection of QSLs from stations whose callsigns spell words
  • C M Wetzel KD8TNF on The Wesco BN-1

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org

Footer

Copyright © 2026 Daniel M. Romanchik, KB6NU · Log in