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https://kicp.uchicago.edu/education/explorers/2002summer-YERKES/pdfs-sum02/background.pdf
http://scitoys.com/scitoys/scitoys/radio/radio.html
http://boyslife.org/search/?q=amateur+radio#gsc.tab=0&gsc.q=amateur%20radio&gsc.page=1
https://sites.google.com/a/ztlearn.com/wrh/radio-kids/ar-wiki.png
http://www.hamradioschool.com/category/current_articles/shack_talk

 
 
http://www.learnelectronicsonline.com
http://components.about.com/od/Theory/
http://www.falstad.com/circuit
https://www.partsim.com
http://www.falstad.com/circuit
http://www.electronics2000.co.uk/calc/












http://www.physics.org/http://sewelldirect.com/articles/simple-machines-and-electronic-projects.aspx



▼ Esotechteric- Techie Stuff 


https://www.ifixit.com
http://www.pinterest.com/annelizabeth31/engineering-construction-and-fix-it-fun-for-kids
http://sewelldirect.com/articles/simple-machines-and-electronic-projects.aspx