Demonstration of standing waves on a string. How the standing waves are generated, harmonics and more is explained here.
By James Dann for ck12.org CC-BY-NC-SA
HALL OF FAME – AI6V & AI6YL “Dear Sue I´m glad to inform you that last weekend has been approved our next HALL of FAME... Read more
Earlier in the week Dom, 3Z9DX, has received confirmation from the North Korean government to make a return trip to P5 and operate amateur radio with... Read more
San Andres Island “From October 17 to October 27 – 2015 Always attentive to all comments, requests and contributions of this beautiful com... Read more
The April Edition of Digital QST is now available at http://www.nxtbook.com/nxtbooks/arrl/qst_201604/. • Learn how to prevent interference from solar... Read more